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МНОГОСЛОЙНОЕ ОСТЕКЛЕНИЕ

Изобретение относится к области многослойных остеклений, конкретнее многослойным остеклениям автомобилей, в частности используемых как ветровые стекла или боковые стекла. Многослойное остекление содержит первый лист окрашенного стекла и второй лист бесцветного стекла, которые соединяются между собой посредством слоистой прослойки. Первый лист имеет толщину е1, находящуюся в диапазоне от 1,5 до 2,5 мм. Второй лист имеет толщину е2, находящуюся в диапазоне от 0,4 до 1,9 мм. Отношение R=е2/е12 составляет не более 0,40 мм-1. Остекление имеет светопропускание, по меньшей мере, 70% и прямое солнечное пропускание не более 55%. Окрашенное стекло имеет химический состав, включающий массовое содержание железа общего, выраженного в форме Fe2O3, находящееся в диапазоне от 1,1 до 2,0%, с редокс отношением, определяемым как отношение между массовым содержанием двухвалентного железа, выраженного в форме FeO, и массовым содержанием железа общего, выраженного в форме Fe2O3, изменяется от 0,23 до 0,32. Технический ...

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ЛИТИЙСОДЕРЖАЩЕЕ СТЕКЛО С ВЫСОКИМ СОДЕРЖАНИЕМ ОКИСЛИТЕЛЬНОГО ЖЕЛЕЗА И СПОСОБ ЕГО ИЗГОТОВЛЕНИЯ

Изобретение относится к литийсодержщим стеклам с высоким содержанием окисленного железа. Технический результат изобретения заключается в сокращении времени перехода от производственного цикла изготовления стекла с высоким поглощением в ИК-области к производственному цикла изготовления стекла с низким поглощением в ИК-области или наоборот. Стекло содержит следующие компоненты, % масс.: SiO60-63; NaO 10-12; LiO 4-5,5; AlO17-19; ZrO3,5-5; AlO+ZrO21,5-24; FeO 0,0005-0,015; FeO(общее железо) 50-1200 ч./млн и окислитель, выбранный из группы, включающей оксид церия в количестве более 0-0,50% масс., оксид марганца в количестве более 0-0,75% масс. и их смеси. Способ замены процесса изготовления стекла процесса изготовления литиевого стекла с высоким поглощением в инфракрасной области с содержанием FeO в количестве 0,02-0,04% масс. и редокс отношением в диапазоне 0,2-0,4 на процесс изготовления литиевого стекла с низким поглощением в инфракрасной области добавлением дополнительных окислителей - CeOи ...

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ЛИТИЕВО-СИЛИКАТНЫЕ СТЕКЛОКЕРАМИКА И СТЕКЛО С ОКСИДОМ ПЯТИВАЛЕНТНОГО МЕТАЛЛА

... 1. Литиево-силикатная стеклокерамика, включающая в себя оксид пятивалентного металла, выбранный из NbO, TaOи смесей таковых, и включающая в себя менее 2,0 масс.% КО.2. Стеклокерамика по п. 1, за исключением литиево-силикатной стеклокерамики, которая включает в себя, по меньшей мере, 6,1 масс.% ZrO.3. Стеклокерамика по п. 1 или 2, за исключением стеклокерамики, которая включает в себя, по меньшей мере, 8,5 масс.% оксида переходного металла, выбранного из группы, состоящей из оксидов иттрия, оксидов переходных металлов, имеющих атомный номер 41-79 и смесей этих оксидов.4. Стеклокерамика по п. 1 или 2, которая включает в себя менее 1,0, в частности, менее 0,5 масс.%, и, предпочтительно, менее 0,1 масс.% КО, и, наиболее предпочтительно, являющаяся, по существу, свободной от КО.5. Стеклокерамика по п. 1 или 2, которая включает в себя менее 1,0, в частности, менее 0,5 масс.%, и, предпочтительно, менее 0,1 масс.% NaО, и, наиболее предпочтительно, являющаяся, по существу, свободной от NaО.6. Стеклокерамика ...

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FLOATED LITHIUM ALUMINOSILIKAT FLAT GLASS WITH HIGH TEMPERATURE STABILITY, WHICH IS CHEMICAL AND THERMAL INITIAL TENSION BAR

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ORTHODONTI BRACKET FROM GLASS.

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LIME SODA SILICA GLASS COMPOSITIONS AND THEIR APPLICATIONS

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Procedure for the production of with a glaze or an enamel covered glass articles

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FURNACE WITH SERIES-ARRANGED BATHS FOR PRODUCING GLASS COMPOUNDS HAVING A LOW DEGREE OF UNMELTED MATERIAL

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GLASS COMPOSITIONS WITH IMPROVED CHEMICAL AND MECHANICAL DURABILITY

A glass composition comprising: from about 70 mol.% to about 80 mol.% SiO2; from about 4 mol.% to about 8 mol.% alkaline earth oxide, the alkaline earth oxide comprising CaO and from about 3 mol.% to about 7 mol.% MgO; X mol.% A120 3 , wherein X is from about 5 to about 7; and Y mol.% alkali oxide, wherein the alkali oxide comprises Na20 in an amount greater than 8 mol.%, and the glass composition is free of boron and compounds of boron.

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Treatment of melt quenched aluminosilicate glass spheres for application as proppants via devitrificaton processes

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Glass compositions with improved chemical and mechanical durability

The embodiments described herein relate to chemically and mechanically durable glass compositions and glass articles formed from the same. In another embodiment, a glass composition may include from about 70 mol.% to about 80 mol.% SiO ...

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Coated metal element used for producing glass

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LITHIUM GLASS COMPOSITIONS

Lithium glass capable of minimizing the effects of alkali silica reaction in concrete. The lithium glass includes a glass forming oxide; lithium oxide; and optionally a glass network modifying oxide. The lithium glass can be also essentially free of sodium or potassium ions.

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ALCOHOL-FREE ALKOXIDE PROCESS FOR CONTAINING NUCLEAR WASTE

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PROCESS FOR PREPARING A GLASS-CERAMIC BODY

The present invention relates to a process for preparing a glass-ceramic body comprising the steps of providing a basic glass body and subjecting the basic glass body to a thermal treatment whereby a crystalline phase embedded in a glass matrix is formed. According to the invention, the basic glass body is made of a composition comprising 65 to 72 wt-% SiO2, at least 10.1 wt-% Li2O and at least 10.1 wt-% A1203 based on the total weight of the composition, the proportion of Li2O to Al2O3 being from 1:1 to 1.5:1. The thermal treatment involves a nucleation step followed by several crystallization steps at different temperatures, whereby at least two different crystalline phases are formed.

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GLASS MATERIAL FOR USE AT HIGH FREQUENCIES

The aim of the invention is to improve the high-frequency characteristics of high-frequency substrates or high-frequency conductor assemblies. To achieve this, the invention provides a glass material for producing insulation layers for high-frequency conductor assemblies. Said material is applied as a layer, in particular with a layer thickness ranging between 0.05 .mu.m and 5 mm, with a tangent of loss angle tan.delta. in at least one frequency range above 1 GHz of less than or equal to 70*10-4.

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SODA-LIME-SILICA GLASS COMPOSITIONS AND APPLICATIONS

L'invention a pour objet une composition de verre de type silico-sodo-calcique destinée à la fabrication de substrats ou plaques, ladite composition de verre possédant un coefficient compris entre 0,50 et 0,85 N/(mm2 ~C) et un point de travail inférieur à 1200 ~C.

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Kupferoxyd enthaltendes Glas

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Electron conducting glass - contg oxides of silicon iron,sodium and lithium,for use in glass electrodes

Glass electrode for measuring oxidation potential of liquid media consists of (in wt.%) SiO2, 45-65, Fe2O3 25-50, Na2O 4-15, and Si2O 2-10. The electrode is stable not susceptible to poisoning and inert with respect to liquid media. The electron exchange at the liquid-glass boundary proceeds rapidly. Wide potential range is covered (from -200 to +1200 MV).

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Glasgegenstand

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Verfahren zur Herstellung einer Glaselektrode

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Low expansion low melting characteristics - glass compositions

The glass composition consists of 50-94 mole% SiO2, 0.5-30 mole% Al2O3, 1.5-35 mole % CU2O, 0-11 mole% TiO2, 0-12.5 mole % B2O3, 0-6 mole % Fe2O3, 0-6 mole % CoO, 0-6 mole % NiO wherein the sum of TiO2, B2O3, Fe2O3, CoO and NiO is from 1-15 mole%. The glass also contains about 1-8 mole % of an additional oxide selected from the group V2O5, CeO2, ThO2, MoO3, Nb2O5, Ta2O5, GeO2, WO3, La2O3, ZrO2, HfO2, BeO, Pbo and mixtures thereof, the sum SiO2, +Cu2O = is not 70 mole% and Cu2O +Al2O3 is not 5 mole%. Glass has coeff. of thermal expansion similar or equal to 10 x 10-7.

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FOR THE USE IN ION-SELECTIVE GLASS ELECTRODES SUITABLE GLASS.

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ALUMINOSILICATE OPTICAL GLASSES.

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Laminated window for protective glazing with functional coating.

Die Erfindung betrifft eine Verbundscheibe (1) für eine Bild-, Vitrinen- oder Schaufensterverglasung mit einer ersten (11) und einer zweiten (12) mineralischen Glasscheibe und zumindest einer organischen UV-absorbierenden Schicht A (13), welche zwischen der ersten (11) und der zweiten (12) mineralischen Glasscheibe angeordnet ist. Im Sinne der Gewichtsreduzierung einer solchen Verbundscheibe (1) weist ihr Flächengewicht eine untere Grenze von 0,6 kg/m 2 und eine obere Grenze von 7,5 kg/m 2 auf, der Quotient aus der Gesamtdicke aller organischen Schichten zu der Gesamtdicke der ersten und zweiten mineralischen Glasscheibe beträgt 0,1 bis 31 und die Gesamtdicke aller organischen Schichten beträgt kleiner gleich 3,1 mm. Die Verbundscheibe (1) weist eine interferenzoptische Beschichtung (14) auf und umfasst eine Beschichtung und/oder Folie, die eine Filterwirkung und/oder Absorption für elektromagnetische Strahlung im Wellenlängenbereich kleiner 380 nm aufweist. Die UV-Durchlässigkeit der Verbundscheibe ...

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Composite disk for protective glazing with functional coating.

Die Erfindung betrifft eine Verbundscheibe (1) für eine Bild-, Vitrinen- oder Schaufensterverglasung mit einer ersten (11) und eine zweiten (12) mineralischen Glasscheibe und zumindest einer organischen UV-absorbierenden Schicht A (13), welche zwischen der ersten (11) und der zweiten (12) mineralischen Glasscheibe angeordnet ist. Im Sinne der Gewichtsreduzierung einer solchen Verbundscheibe (1) weist ihr Flächengewicht eine untere Grenze von 0,6 kg/m 2 und eine obere Grenze von 7,5 kg/m 2 auf, der Quotient aus der Gesamtdicke aller organischen Schichten zu der Gesamtdicke der ersten (11) und zweiten (12) mineralischen Glasscheibe beträgt 0,1 bis 31 und die Gesamtdicke aller organischen Schichten beträgt kleiner gleich 3,1 mm. Die Verbundscheibe (1) weist eine interferenzoptische Beschichtung (14) auf und umfasst eine Beschichtung und/oder Folie, die eine Filterwirkung und/oder Absorption für elektromagnetische Strahlung im Wellenlängenbereich kleiner 380 nm aufweist. Die UV-Durchlässigkeit ...

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Glasses for substrate for magnetic recording medium, substrates for magnetic recording medium, magnetic recording media, and processes for producing these

The provided are a glass for a magnetic recording medium substrate permitting the realization of a magnetic recording medium substrate affording good chemical durability and having an extremely flat surface, a magnetic recording medium substrate comprised of this glass, a magnetic recording medium equipped with this substrate, and methods of manufacturing the same. Glasses for a magnetic recording medium substrate are, glass I comprised of an oxide glass, comprising, denoted as mass percentages: Si 20 to 40 percent, Al 0.1 to 10 percent, Li 0.1 to 5 percent, Na 0.1 to 10 percent, K 0 to 5 percent (where the total content of Li, Na, and K is 15 percent or less), Sn 0.005 to 0.6 percent, and Ce 0 to 1.2 percent,the Sb content is 0 to 0.1 percent,and not comprising As or F,glass II comprised of oxide glass, comprising, as converted based on the oxide, denoted as molar percentages: SiO 2 60 to 75 percent, Al 2 O 3 1 to 15 percent, Li 2 O 0.1 to 20 percent, Na 2 O 0.1 to 15 percent, and K 2 ...

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Method for manufacturing reinforced glass plate, and method for manufacturing glass plate for reinforcement

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Reinforced glass substrate

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A cover glass products

... 种盖板玻璃制品包括具有三维形状、内侧表面和外侧表面的玻璃主体。所述内侧表面和外侧表面各自具有小于1纳米的表面粗糙度(R)，且不含直径大于150微米的压痕。 ...

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Comprising a monovalent metal oxide lithium silicate glass ceramic and the lithium silicate glass

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NON-SHAPED REPAIR GLASS MELTING FURNACES

Produit non façonné comportant en pourcentages en masse, et pour un total de 100%, A) des particules (a) d'au moins un matériau réfractaire différent d'un verre dont le ou les constituants principaux sont l'alumine (Al2O3) et/ou la zircone (ZrO2) et/ou la silice (SiO2) et/ou l'oxyde de chrome (Cr2O3), les particules (a) constituant le complément à 100%, B) 2% à 15% de particules (b) d'un liant à chaud choisies parmi des particules de vitrocéramique, des particules en un verre, en particulier en un verre précurseur de vitrocéramique, et les mélanges de ces particules, la quantité massique de particules de vitrocéramique et/ou de particules de verre précurseur de vitrocéramique dans l'ensemble des particules (b) étant supérieure à 10%, sur la base de la masse de l'ensemble des particules (b), le liant à chaud n'étant pas à l'état solide à 1500°C, C) moins de 2% de particules (c) de ciment hydraulique, D) moins de 7% d'autres constituants, L'ensemble desdites particules (a) et (b), de préférence ...

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Manufactoring process of objects out of glass with great mechanical resistance

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ELECTROLYTE OUT OF GLASS LEADING THE IONS SODIUM FOR THE BATTERIES TO THE SODIUM/SOUFRE

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OPTICAL GLASS

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Lamp envelope

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GLASS CERAMIC AS AN ACTIVE LASER MATERIAL

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SHAFT FURNACE IN SERIES FOR the PREPARATION OF COMPOSITION OF GLASS HAS Low level Of INFONDUS

L'invention concerne un four pour la fusion en continu d'une composition comprenant de la silice, ledit four comprenant au moins deux cuves en série, lesdites cuves comprenant chacune au moins un brûleur immergé dans les matières fondues. L'invention concerne également le procédé de fabrication de compositions comprenant de la silice à l'aide du four, la silice et du fondant de la silice étant enfournés dans la première cuve. L'invention permet la réalisation de frittes de coloration de verre, de frittes de carrelage et d'émail avec une forte productivité, de basses températures et permet de faibles temps de transition.

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GLASS FOR TELEVISION DISPLAY CATHODE-RAY TUBES

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Process for the manufacture of suitable glasses in particular for insulation

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PROCESS FOR PREPARING A GLASS-CERAMIC BODY

... 본 발명은 기본 유리 본체를 제공하는 단계 및 이 기본 유리 본체를 열 처리하여 유리 매트릭스에 삽입된 결정질 상을 형성하는 단계를 포함하는 유리-세라믹 본체의 제조 방법에 관한 것이다. 본 발명에 따르면, 상기 기본 유리 본체는 조성물의 총 중량에 기초하여 65 내지 72 중량%의 SiO2, 적어도 10.1 중량%의 Li2O 및 적어도 10.1 중량%의 Al203을 포함하고, Li2O:Al2O3의 비율 1:1 내지 1.5:1을 갖는 조성물로 제조된다. 상기 열 처리는 핵형성 단계 후, 상이한 온도에서 다수의 결정화 단계를 포함함으로써 적어도 2개의 상이한 결정질 상을 형성한다.

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DURABLE GLASS HOUSINGS/ENCLOSURES FOR ELECTRONIC DEVICES

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METHOD FOR MANUFACTURING WALL OF PLASMA DISPLAY PANEL

PURPOSE: A method for manufacturing a wall of a plasma display panel is provided to form a fine wall in large scale by using a photosensitive glass. CONSTITUTION: A photosensitive glass powder(50) is provided by powdering minutely a photosensitive glass material. The photosensitive glass powder(50) is put in a predetermined container. A mask pattern(54) is arranged to the photosensitive glass powder(50) and the photosensitive glass powder(50) is exposed to the light. The photosensitive glass powder(50) is heated so that a crystal phase is formed on a part of the exposed part and the unexposed part thereof. A wall is formed by etching the part that the crystal phase is formed. The photosensitive glass powder(50) includes SiO2, Li2O, Al2O3, AgCl, and K2O. The photosensitive glass powder(50) is made of Li2O of 14-28wt%, Al2O3 of 0.1-3wt%, Si2O of 55-78wt%, K2O of 0-5wt%, AgCl of 0-1wt%, and CeO2 of 0-1wt%. © KIPO 2003 ...

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REINFORCED GLASS SUBSTRATE

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보호캡, 전자 장치 및 보호캡의 제조 방법

... 보호캡(4)은 프레임부(6)와, 프레임부(6)의 일단 개구를 덮는 덮개부(7)와, 프레임부(6)와 덮개부(7)를 접합하는 접합부(8)를 구비하고 있다. 덮개부(7)는 석영 유리로 이루어지고, 프레임부(6)는 30∼380℃의 온도범위에 있어서의 열팽창계수가 30×10-7∼100×10-7/℃인 유리재로 이루어진다.

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Asymmetric chemical strengthening

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Cover glass for solar cell

Provided is a cover glass for solar cells which has a volume resistivity of 1.0108.3 [ohm]cm or higher and in which the surface layer to be disposed on the solar-cell side has a sodium concentration in the range of 0.01-13 mass% in terms of Na2O.

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Multicolored photosensitive glass-based parts and methods of manufacture

Multicolored glass-based articles and methods of manufacture are disclosed. The method includes forming a glass-based part and exposing a first region to radiation and a second region to radiation such that the first and second regions have different sized metallic nanoparticles, resulting in a multicolored glass article.

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Methods of reducing the thickness of textured glass, glass-ceramic, and ceramic articles with high concentration alkali hydroxide at elevated temperature

A method of modifying a substrate comprising an etching step comprising contacting one or more primary surfaces of a glass, glass-ceramic, or ceramic substrate with a solution for a time period of 20 minutes to 8 hours to generate one or more etched primary surfaces, the solution comprising over 10 percent by weight of one or more alkali hydroxides, the solution having a temperature within the range of 100 DEG C to 150 DEG C, the substrate having a thickness between the primary surfaces that decreases during the time period by 5 [mu]m to 100 [mu]m at a rate of 2 [mu]m per hour or greater. The solution of the etching step does not comprise hydrogen fluoride. The one or more alkali hydroxides of the solution of the etching step can be sodium hydroxide (NaOH), potassium hydroxide (KOH), or a combination of both sodium hydroxide and potassium hydroxide.

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Tempered glass substrate and method for fabricating the same

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LITHIUM SILICATE GLASS CERAMIC AND LITHIUM SILICATE GLASS COMPRISING A HEXAVALENT METAL OXIDE

The invention relates to lithium silicate glass ceramics and lithium silicate glasses which have a content in special oxides of hexavalent elements, which crystallize at low temperatures and which are particularly suitable as dental materials.

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METHOD FOR MANUFACTURING STRENGTHENED GLASS SUBSTRATE

Provided is a method for manufacturing a strengthened glass substrate, said method comprising a chemical strengthening step for contacting a glass substrate with a molten chemical strengthening salt liquid in a first tank, a cooling step for contacting the glass substrate having been treated in the chemical strengthening step with a molten chemical strengthening salt liquid in a second tank, and a draining step for draining off the molten chemical strengthening salt liquids sticking to the surface of the glass substrate, characterized in that: the molten chemical strengthening salt liquids in the first tank and in the second tank comprise chemical strengthening salts having substantially the same chemical composition; the temperature (T2) of the molten chemical strengthening salt liquid in the second tank is lower than the temperature of the molten chemical strengthening salt liquid in the first tank and satisfies the requirement Tmp Подробнее

COVER GLASS FOR SOLAR CELL

Provided is a cover glass for solar cells which has a volume resistivity of 1.0×108.3 Ω·cm or higher and in which the surface layer to be disposed on the solar-cell side has a sodium concentration in the range of 0.01-13 mass% in terms of Na2O.

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GLASS FOR AUTONOMOUS CAR

The invention concerns a trim element for a motor vehicle comprising at least one glass sheet having an absorption coefficient comprised between 5 m and 15 m in the wavelength range from 750 to 1650 nm and having an external and an internal faces. According to the present invention, an infrared-based remote sensing device in the wavelength range from 750 to 1650 nm, is placed behind the internal face of the glass sheet. 1. A trim element for a motor vehicle comprising at least one glass sheet having an absorption coefficient comprised between 5 mand 15 min the wavelength range from 750 to 1650 nm and having an external face and an internal face , wherein an infrared-based remote sensing device in the wavelength range from 750 to 1650 nm is placed behind the internal face of the glass sheet.2. The trim element according to claim 1 , wherein the trim element is an exterior glass trim element.3. The trim element according to claim 1 , wherein the at least one glass sheet has an absorption coefficient comprised between 5 mand 10 min the wavelength range from 750 to 1650 nm.4. The trim element according to claim 1 , wherein the infrared-based remote sensing device is optically coupled to the internal face of the glass sheet.54. The trim element according to claim 1 , wherein the trim element is a laminated trim element comprising an exterior glass sheet and an interior glass sheet laminated with at least one thermoplastic interlayer claim 1 , and wherein the exterior glass sheet and interior glass sheet are high level of near infrared radiation transmission glass sheets having an absorption coefficient lower than 5 mand wherein the infrared-based remote sensing device is placed on face .6. The trim element according to claim 1 , wherein the at least one glass sheet comprises a content claim 1 , expressed as the total weight of glass percentages:{'sub': 2', '3, 'total iron (expressed as FeO) 0.002 to 0.06%; and'}{'sub': 2', '3, 'CrO0.0001 to 0.06%.'}7. The trim element ...

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GLASS FOR USE AS SUBSTRATE FOR INFORMATION RECORDING MEDIUM, SUBSTRATE FOR INFORMATION RECORDING MEDIUM AND INFORMATION RECORDING MEDIUM, AND THEIR PRODUCTION METHODS

According to one aspect of the present invention, provided is glass for use in substrate for information recording medium, which comprises, denoted as molar percentages, a total of 70 to 85 percent of SiO 2 and Al 2 O 3 , where SiO 2 content is equal to or greater than 50 percent and Al 2 O 3 content is equal to or greater than 3 percent; a total of equal to or greater than 10 percent of Li 2 O, Na 2 O and K 2 O; a total of 1 to 6 percent of CaO and MgO, where CaO content is greater than MgO content; a total of greater than 0 percent but equal to or lower than 4 percent of ZrO 2 , HfO 2 , Nb 2 O 5 , Ta 2 O 5 , La 2 O 3 Y 2 O 3 and TiO 2 ; with the molar ratio of the total content of Li 2 O, Na 2 O and K 2 O to the total content of SiO 2 , Al 2 O 3 , ZrO 2 , HfO 2 , Nb 2 O 5 , Ta 2 O 5 , La 2 O 3 , Y 2 O 3 and TiO 2 ((Li 2 O+Na 2 O+K 2 O)/(SiO 2 +Al 2 O 3 +ZrO 2 +HfO 2 +Nb 2 O 5 +Ta 2 O 5 +La 2 O 3 +Y 2 O 3 +TiO 2 )) being equal to or less than 0.28. Further provided are the substrate for information recording medium, information recording medium and their manufacturing methods according to the present invention.

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REFRACTORY OBJECT, GLASS OVERFLOW FORMING BLOCK, AND PROCESS FOR GLASS OBJECT MANUFACTURE

A refractory object can include at least 10 wt % Al2O3. In an embodiment, the refractory object can further include a dopant including an oxide of a rare earth element, Ta, Nb, Hf, or any combination thereof. In another embodiment, the refractory object may have a property such that the averaged grain size does not increase more than 500% during sintering, an aspect ratio less than approximately 4.0, a creep rate less than approximately 1.0×105 m/(m×hr), or any combination thereof. In a particular embodiment, the refractory object can be in the form of a refractory block or a glass overflow forming block. The glass overflow forming block can be useful in forming an AlSiMg glass sheet. In a particular embodiment, a layer including MgAl oxide can initially form along exposed surfaces of the glass overflow forming block when forming the AlSiMg glass sheet.

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High modulus rare earth and beryllium containing silicate glass compositions

Glass compositions having a Young's modulus of at least 16 million psi and a specific modulus of at least 110 million inches consisting essentially of approximately, by weight, 20-43% SiO2, 8-21% Al2 O3, 4-10% BeO, 27-58% of at least one oxide selected from a first group consisting of Y2 O3, La2 O3, Nd2 O3, Ce2 O3 and the mixed rare earth oxides and 3-12% of at least one oxide selected from a second group consisting of MgO, ZrO2, ZnO and CaO, the molar ratio of BeO to the total content of said first group oxides being from 1.0-3.0.

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Ion exchange strengthened glass containing P{HD 2{B O{HD 5

An alkali-alumina-silica-zirconia glass capable of being chemically strengthened by exchanging sodium ions in the glass with potassium ions from an external source below the strain point of the glass has its ion exchange rate increased by incorporating 2 to 20 percent P2O5 into the initial glass composition.

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Glass-ceramics, process for producing the same, and substrate for information recording medium, information recording medium and information recording device each using the glass-ceramics

A glass-ceramics having a high elastic modulus, processes for producing the same, and an information recording medium substrate effectively inhibited from bending or vibrating are disclosed. The glass-ceramics has a major crystalline phase which has a Mohs' hardness of 6 or higher and is constituted of crystals containing manganese (Mn).

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Substrate for information recording medium, information recording medium and process for producing information recording medium

A substrate for a magnetic recording medium made of a glass or crystallized glass which has a specified spectral light transmittance and a process for producing an information recording medium.

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GLASS ARTICLE AND PRODUCTION METHOD FOR GLASS ARTICLE

The glass article has a three-dimensional shape. The glass article contains a first surface and at least one second surface opposite to the first surface, and contains a bent part in at least one place of the first surface or the second surface. 139- (canceled)40. An interior member for transportation device , comprising:a glass having a bent part having a first surface and a second surface,wherein the second surface of the glass has a static friction coefficient of 1.0 or less when the static friction coefficient is measured by placing a pseudo-finger contactor on the second surface of the glass and moving the pseudo-finger contactor at a rate of 10 min/second in a state of applying a load of 30 g.41. The interior member according to claim 40 ,wherein the second surface of the glass is on an outer front surface side.42. The interior member according to claim 40 ,wherein the glass is a laminated glass comprising two or more sheets of glass and a resin film between the sheets of glass.43. The interior member according to claim 40 ,wherein the bent part contains at least one site having an average radius of curvature of 30 cm or less.44. The interior member according to claim 40 ,wherein the bent part contains at least one site having a Gaussian curvature of not 0.45. The interior member according to claim 44 ,wherein the Gaussian curvature is negative.46. The interior member according to claim 40 ,wherein the second surface of the glass has a roughness on the surface.47. The interior member according to claim 46 ,wherein the roughness has an antiglare property.48. The interior member according to claim 40 ,wherein the first surface or the second surface of the glass comprises a low reflection film.49. The interior member according to claim 40 ,wherein the second surface of the glass comprises a antifouling film.50. The interior member according to claim 49 ,wherein the antifouling film comprises a fluorine compound.51. The interior member according to claim 40 , ...

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ELECTRICAL STORAGE SYSTEM INCLUDING A SHEET-LIKE DISCRETE ELEMENT, SHEET-LIKE DISCRETE ELEMENT, METHOD FOR PRODUCING SAME, AND USE THEREOF

An electrical storage element is provided that includes a discrete sheet-like element with particularly low transparency to high-energy electrical radiation, preferably in a range of wavelengths from 200 to 400 nm, and to the manufacturing thereof, and also relates to a discrete sheet-like element that exhibits particularly low transparency for high-energy electromagnetic radiation, preferably in a range of wavelengths from 200 to 400 nm, and to the manufacturing thereof. 2. The electrical storage system as claimed in claim 1 , wherein the transmittance is selected from the group consisting of 15% or less in the range from 200 nm to 270 nm at a thickness of 30 μm claim 1 , 10% or less at 282 nm at a thickness of 30 μm claim 1 , and 80% or less at 308 nm a thickness of 30 μm.3. The electrical storage system as claimed in claim 1 , wherein the sheet-like discrete element exhibits a water vapor transmission rate (WVTR) of <10g/(m·d).4. The electrical storage system as claimed in claim 1 , wherein the sheet-like discrete element has a thickness of less than 2 mm.5. The electrical storage system as claimed in claim 1 , wherein the sheet-like discrete element has a thickness of less than or equal to 100 μm.6. The electrical storage system as claimed in claim 1 , wherein the sheet-like discrete element has a specific electrical resistance at a temperature of 350° C. and at alternating current with a frequency of 50 Hz of greater than 1.0*10Ohm·cm.7. The electrical storage system as claimed in claim 1 , wherein the sheet-like discrete element exhibits a maximum load temperature θof at least 300° C.8. The electrical storage system as claimed in claim 1 , wherein the sheet-like discrete element has a coefficient of linear thermal expansion α in a range from 2.0*10/K to 10*10/K.9. The electrical storage system as claimed in claim 1 , wherein the sheet-like discrete element has a maximum load temperature θof at least 300° C. claim 1 , a coefficient of linear thermal expansion α ...

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GLASS FOR USE IN WAVELENGTH CONVERSION MATERIAL, WAVELENGTH CONVERSION MATERIAL, WAVELENGTH CONVERSION MEMBER, AND LIGHT-EMITTING DEVICE

Provided is a glass that is used in a phosphor-containing wavelength conversion material and from which can be produced a wavelength conversion member less degraded in characteristics of a phosphor owing to firing during production of the wavelength conversion member and having excellent weather resistance. The glass is for use in a wavelength conversion material and contains, in terms of % by mass, 30 to 75% SiO2, 1 to 30% B2O3, over 4 to 20% Al2O3, 0.1 to 10% Li2O, 0 to below 9% Na2O+K2O, and 0 to 10% MgO+CaO+SrO+BaO+ZnO.

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Chemically-strengthened thin glass substrates new paradigms for modified curvature and methods of manufacture

Chemically-strengthened thin glass having modified curvature and a method for making the same. The method includes providing a thin glass substrate which has host alkali ions situated in its surface regions, and possesses a treatment-advantaged surface region and a treatment-disadvantaged surface region located opposing each other; conducting a step of ion-exchange with invasive alkali ions having an average ionic radius larger than the average ionic radius of the host alkali ions, thereby producing a chemically-strengthened substrate which is characterized by an undesired curvature (warpage), and then conducting a step of reverse ion-exchange with reversing alkali ions having an average ionic radius equal to, or smaller than, the average ionic radius of the host alkali ions before ion-exchange, so as to produce a chemically-strengthened substrate having either less curvature or having a predetermined profile of curvature, which is not present in the chemically-strengthened glass substrate ...

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Glass-based articles having crack resistant stress profiles

Glass-based articles are disclosed having a thickness in a range of from about 0.2 mm to about 4.0 mm, a first compressive stress layer extending from a first surface of the glass-based article to a first depth of compression that is in a range of from about 5% to about 20% of the thickness, a second compressive stress layer extending from a second surface of the glass-based article to a second depth of compression that is in a range of from about 5% to about 20% of the thickness, wherein the second surface is opposite the first surface, and a central region extending from the first depth of compression to the second depth of compression and having a maximum tensile stress in a range of from about 0.5 MPa to about 20 MPa. Electronic devices comprising the glass-based articles and methods of making glass-based articles are also disclosed.

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HOT-FORMED, CHEMICALLY PRESTRESSABLE GLASS ARTICLES WITH A LOW PROPORTION OF CRYSTALS AND METHODS AND DEVICES FOR PRODUCING

A hot-formed, chemically prestressable glass article having a low percentage of crystals or crystallites, in particular a plate-shaped, chemically prestressable glass article, as well as to a method and a device for its production are provided. The glass article has a composition including the components SiO2, Al2O3, and Li2O and a content of seed formers (ZrO2, SnO2, and TiO2) of at least 0.8 wt %, as well as at most ten crystals, including crystallites, per kilogram of glass, which have a maximum diameter greater than 1 μm and up to at most 5 μm.

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Ultraviolet absorbing, fixed tint lenses

Ultraviolet absorbing, fixed tint glass for use as a lens A transparent glass having a near-zero transmission at a wavelength of 380 nm, a fixed tint, and a compsn. comprising 65-75 wt.% SiO2, 5-11 wt.% Na2O, 5-13 wt.% K2O, where Na2O+K2O is 14-20 wt.%, 0-2 wt.% Al2O3, 1.5-3.5 wt.% V2O5 and 1-4 wt.% MnO2. Also claimed is a UV absorbing opthalmic lens made from the above glass. The glass further contains 0-5 wt.% of at least one of; alkaline earth metal oxides, PbO, and ZnO. The glass further contains up to 0.05 wt.% Co3O4 and 0.1-1 wt.% of a fining agent. The glass may further contain 0-8 wt.% individually and 10 wt.% collectively of at least one oxide to increase the refractive index, from BaO, La2O3, Nb2O3, ZrO2, and TiO2.

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СТЕКЛЯННЫЕ НИТИ ДЛЯ УСИЛЕНИЯ ОРГАНИЧЕСКИХ И/ИЛИ НЕОРГАНИЧЕСКИХ МАТЕРИАЛОВ

Объектом настоящего изобретения являются стеклянные нити, состав которых содержит следующие компоненты в нижеуказанных интервалах, в мас.%: SiO2 50-65%, Al2O3 12-20%, CaO 12-13,9%, MgO 6-12%, CaO/MgO 2, предпочтительно 1,3, Li2O 0,1-0,8%, предпочтительно 0,6%, BaO+SrO 0-3%, В2О3 0-3%, TiO2 0-0,5%, Na2O+K2O<2%, F2 0-1%, Fe2O3<1%. Технический результат изобретения - получение стекла, отличающегося отличным компромиссом между механическими свойствами, представляющими собой удельный модуль Юнга, и условиями плавления и волокнообразования. Удельный модуль Юнга стекла превышает 36 МПа/кг/м3 при сохранении хороших условий волокнообразования. 4 н. и 6 з.п. ф-лы, 1 табл.

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МИКРОКРИСТАЛЛИЧЕСКОЕ СТЕКЛО, ИЗДЕЛИЕ ИЗ МИКРОКРИСТАЛЛИЧЕСКОГО СТЕКЛА И СПОСОБ ИХ ИЗГОТОВЛЕНИЯ

Настоящее изобретение относится к микрокристаллическому стеклу и изделию из него, которое может быть использовано в качестве стеклянной покровной пластины в устройствах отображения и электронных устройствах. Изделие из микрокристаллического стекла содержит следующие компоненты в процентах по весу: SiO2: 45-70%; Al2O3: 8-18%; Li2O: 10-25%; ZrO2: 5-15%; Р2О5: 2-10%; Y2О3: 0,34-5,8%, при этом (Li2O+ZrO2+P2O5)/Y2О3 составляет 8,5-50,0%. Композиция микрокристаллического стекла может дополнительно содержать следующие компоненты в процентах по весу: K2O: 0-5%; и/или MgO: 0-2%; и/или ZnO: 0-2%; и/или Na2O: 0-6%; и/или SrO: 0-5%; и/или ВаО: 0-5%; и/или СаО: 0-5%; и/или ТiO2: 0-5%; и/или В2О3: 0-5%; и/или Ln2О3: 0-5%; и/или осветляющее средство: 0-2%, где указанный Ln2О3 является одним или более из Lа2О3, Gd2O3, Yb2О3, осветляющее средство является одним или более из Sb2O3, SnO2, SnO, СеO2, F, Сl и Br. Изделие из микрокристаллического стекла получают путём технологии кристаллизации с последующим ...

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ЛИТИЕВО-СИЛИКАТНЫЕ СТЕКЛОКЕРАМИКА И СТЕКЛО С ОКСИДОМ ЧЕТЫРЕХВАЛЕНТНОГО МЕТАЛЛА

... 1. Литиево-силикатная стеклокерамика, включающаяоксид четырехвалентного металла, выбранный из ZrO, TiO, CeO, GeO, SnOи смесей таковых,по меньшей мере, 12,1 мас.% LiO,менее 0,1 мас.% LaO,менее 1,0 мас.% КО именее 2,0 мас.% NaO.2. Стеклокерамика по п. 1, за исключением литиево-силикатной стеклокерамики, которая включает, по меньшей мере, 6,1 мас.% ZrO.3. Стеклокерамика по п. 1 или 2, за исключением стеклокерамики, которая включает, по меньшей мере, 8,5 мас.% оксида переходного металла, выбранного из группы, состоящей из оксидов иттрия, оксидов переходных металлов, имеющих атомный номер 41-79 и смесей этих оксидов.4. Стеклокерамика по п. 1 или 2, которая включает менее 0,5 в частности, менее 0,1 мас.% КО, и, предпочтительно, являющаяся, по существу, свободной от КО.5. Стеклокерамика по п. 1 или 2, которая включает менее 1,0, в частности, менее 0,5, предпочтительно, менее 0,1 мас.% NaO, и являющаяся, по существу, свободной от NaO.6. Стеклокерамика по п. 1 или 2, которая является, по существу ...

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КОМПОЗИЦИИ СТЕКЛА С ПОВЫШЕННОЙ ХИМИЧЕСКОЙ И МЕХАНИЧЕСКОЙ СТОЙКОСТЬЮ

... 1. Композиция стекла, содержащая:SiOв концентрации больше 74% мол.;щелочноземельный оксид, включающий MgO и СаО, при этом СаО присутствует в количестве, большем или равном 0,1% мол. и меньшем или равном 1,0% мол., и отношение (СаО(% мол.)/(СаО(% мол.)+MgO(% мол.))) меньше или равно 0,5; иY% мол. щелочного оксида, при этом щелочной оксид включает NaО в количестве больше 8% мол., при этом композиция стекла свободна от бора и соединений бора.2. Композиция стекла по п. 1, в которой концентрация SiOменьше или равна 80% мол.3. Композиция стекла по п. 1, дополнительно содержащая Х% мол. AlO, при этом отношение Y:Х больше или равно 1.4. Композиция стекла по п. 3, в которой отношение Y:Х меньше или равно 2.5. Композиция стекла по п. 3, в которой Х больше или равно 2% мол. и меньше или равно 10% мол.6. Композиция стекла по п. 1, в которой щелочноземельный оксид присутствует в количестве от 3% мол. до 13% мол.7. Композиция стекла по п. 3, в которой отношение Y:Х больше или равно 1,3 и меньше или равно ...

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ЛИТИЕВО-СИЛИКАТНЫЕ СТЕКЛОКЕРАМИКА И СТЕКЛО С ОКСИДОМ ШЕСТИВАЛЕНТНОГО МЕТАЛЛА

... 1. Литиево-силикатная стеклокерамика, включающая в себя оксид шестивалентного металла, выбранный из MoO, WOи смесей таковых.2. Стеклокерамика по п. 1, за исключением литиево-дисиликатной стеклокерамики, которая включает, по меньшей мере, 6,1 мас.% ZrO.3. Стеклокерамика по п. 1 или 2, за исключением литиево-дисиликатной стеклокерамики, которая включает, по меньшей мере, 8,5 мас.% оксида переходного металла, выбранного из группы, состоящей из оксидов иттрия, оксидов переходных металлов, имеющих атомный номер 41-79, и смесей этих оксидов.4. Стеклокерамика по п. 1 или 2, которая включает менее 2,0, в частности менее 0,5 мас.%, предпочтительно менее 0,1 мас.% КО, и наиболее предпочтительно являющаяся, по существу, свободной от КО.5. Стеклокерамика по п. 1 или 2, которая включает в себя менее 1,0, в частности менее 0,5 и предпочтительно менее 0,1 мас.% оксида дополнительного щелочного металла и особенно предпочтительно является, по существу, свободной от такового.6. Стеклокерамика по п. 1 или ...

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СПОСОБ ПОЛУЧЕНИЯ ЗАГОТОВКИ ИЗ ЛИТИЙСИЛИКАТНОГО СТЕКЛА И ЛИТИЙСИЛИКАТНОЙ СТЕКЛОКЕРАМИЧЕСКОЙ ЗАГОТОВКИ

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ПИГМЕНТЫ И СУБСТРАТЫ НА ОСНОВЕ СТЕКЛЯННОЙ КРОШКИ

... 1. Пигмент, состоящий из стеклянной крошки, по меньшей мере, частично покрытой материалом с высоким коэффициентом отражения, при этом стеклянная крошка состоит из: ! кварц от 50 до 80 глинозем от 1 до 20 титан до 20! 2. Пигмент по п.1, где стеклянная крошка состоит из: ! кварц от 65 до 75 глинозем от 1 до 5 титан до 5 ! количества приведены в вес.%, на основе веса стеклянной крошки. ! 3. Пигмент по п.1 или 2, где стеклянная крошка имеет следующий примерный состав: ! SiO2 69 TiO2 1,5 Al2O3 3,5 CaO 2,25 MgO 1,25 K2O 2 Na2O 9,5 B2O310,5 другое 0,5, ! количество приведено в виде веса по отношению к весу стеклянной крошки. ! 4. Пигмент по п.1, где толщина стеклянной крошки составляет менее 5 мкм. !5. Пигмент по п.4, где толщина стеклянной крошки составляет менее 1 мкм. ! 6. Пигмент по п.4 или 5, где толщина стеклянной крошки составляет от 20 до 500 нм. ! 7. Пигмент по п.1, где средний размер частиц стеклянной крошки составляет от 1 до 1000 мкм. ! 8. Пигмент по п.7, где средний размер частиц ...

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ПРЕДВАРИТЕЛЬНО СПЕЧЕННАЯ ЗАГОТОВКА ДЛЯ ЗУБОВ

... 1. Предварительно спеченная заготовка для зубов на основе стеклокерамики на основе метасиликата лития, при этом заготовка имеет относительную плотность от 66 до 90%, в частности от 68 до 86% и предпочтительно от 70 до 86%, по отношению к истинной плотности стеклокерамики.2. Заготовка по п. 1, которая по существу состоит из стеклокерамики на основе дисиликата лития.3. Заготовка по одному из пп. 1-2, которая содержит стеклокерамику на основе метасиликата лития в качестве основной кристаллической фазы, в частности более 20 об.%, предпочтительно более 25 об.% и особенно предпочтительно более 30 об.% кристаллов дисиликата лития.4. Заготовка по одному из пп. 1-3, причем стеклокерамика на основе метасиликата лития содержит по меньшей мере один из следующих компонентов, мас.%:при этомMe(I)О выбирают из NaО, KО, RbО, CSO или их смесей,Me(II)О выбирают из CaO, BaO, MgO, SrO, ZnO и их смесей,Me(III)Овыбирают из AlО, LaО, BiО, YО, YbОи их смесей,Me(IV)Овыбирают из ZrO, TiО, SnO, GeOи их смесей,Me(V ...

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Grilling device useful in gas grill and as a cooking plate, comprises a heating element and heat source-protective shield arranged between grill good and the heating element for shielding the heating elements from food residues

The grilling device comprises a heating element and a heat source-protective shield arranged between grill good and the heating element for shielding the heating elements from food residues, which emerge during grilling. The heat source-protective shield has a glass or glass ceramic substrate with a coating at grill good side, which prevents or reduces the diffusion of substance from surfaces that emerges through the burning of food residues on the sources of heat source-protective-shield, in the glass or glass ceramic substrate. The grilling device comprises a heating element and a heat source-protective shield arranged between grill good and the heating element for shielding the heating elements from food residues, which emerge during grilling. The heat source-protective shield has a glass or glass ceramic substrate with a coating at grill good side, which prevents or reduces the diffusion of substance from surfaces that emerges through the burning of food residues on the sources of heat ...

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Lithium-Aluminosilicatglas mit hohen E-Modul und Verfahren zu dessen Herstellung

Die Erfindung betrifft Lithium-Aluminosilicatglas sowie ein Herstellungsverfahren für dieses Lithium-Aluminosilicatglas, wobei das Glas eine Zusammensetzung in Mol-% aus: 6070 SiO2 1013 Al2O3 0,00,9 B2O3 9,611,6 Li2O 8,2< 10 Na2O 0,00,7 K2O 0,00,2 MgO 0,22,3 CaO 0,00,4 ZnO 1,32,6 ZrO2 0,00,5 P2O5 0,0030,100 Fe2O3 0,00,3 SnO2 0,0040,200 CeO2 umfasst. Für das erfindungsgemäße Glas gelten folgende Verhältnisse und Bedingungen: (Li2O + Al2O3)/(Na2O + K2O) > 2, 0,47 < Li2O/(Li2O + Na2O + K2O) < 0,70, 0,8 < CaO + Fe2O3 + ZnO + P2O5 + B2O3 + CeO2 < 3, wobei zumindest vier aus den sechs Oxiden enthalten sind, und wobei. Ein solches Lithium-Aluminosilicatglas weist einen E-Modul von zumindest 82 GPa auf. Darüber hinaus hat es eine Glasübergangstemperatur Tg von kleiner als 540°C und/oder eine Verarbeitungstemperatur von kleiner als 1150°C. Das Glas ist für eine Formgebung mittels eines Floatprozesses geeignet und chemisch und/oder thermisch vorspannbar, so dass es eine Biegebruchfestigkeit von zumindest ...

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Blendfreie Glasartikel und Verfahren zum Herstellen von blendfreien Glasartikeln

Die Erfindung betrifft allgemein Glasartikel, vorzugsweise blendfreie Glasartikel, sowie ein Verfahren zum Herstellen von vorzugsweise blendfreien Glasartikeln.

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GLASGEGENSTAND

Ein Glasgegenstand, der eine erste Hauptoberfläche, eine zweite Hauptoberfläche und eine Endfläche umfasst, wobei: der Glasgegenstand eine Blendschutzschicht auf der Seite der ersten Hauptoberfläche umfasst; die Blendschutzschicht einen Glasübergangspunkt Tg aufweist, der mit einem Glasübergangspunkt Tgdes Glasgegenstands an einem zentralen Abschnitt in einem Querschnitt entlang einer Dickenrichtung identisch oder kleiner als dieser ist; und die erste Hauptoberfläche einen Vorwölbungsdurchmesser y (µm) aufweist, welcher der Beziehung (1) in Bezug auf einen 60°-Spiegelglanz (Glanzwert) x (%) der ersten Hauptoberfläche genügt, y > -0,0245x + 3,65 (1).

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Inorganic fibres

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OPHTHALMIC GLASS COMPOSITIONS

... 1475500 Ophthalmic glass PILKINGTON BROS Ltd 22 Nov 1974 [6 Dec 1973] 56656/73 Heading C1M An ophthalmic glass composition comprises, in percent by weight: the above oxides totalling at least 95% and the balance, if any, consisting of compatible constituents; the total of Na 2 O and K 2 O being 17-22%; B 2 O 3 being present when Al 2 O 3 + ZrO 2 exceeds 10%; and the total of ZrO 2 + TiO 2 , when TiO 2 is present, not exceeding 5.5%. The balance may be one or more alkaline earth metal oxides, preferably MgO. The glass, which may have a refractive index n D of 1À5197- 1À5272, may be toughened by ion-exchange. The glass may be immersed for 16 hours in a bath containing 99% KNO 3 , 0À5% NaNO 3 and 0.5% silicic acid at 470‹ C., to obtain ion penetration of 80-233 Á depth.

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Glass fibres

A glass fibre formable from a melt by a rotary process and having a diameter less than 5žm and comprising in weight percent:-

SiO2

62 to 75 wt%

Alkaline earth metal oxide

13 to 25 wt%

Alkali metal oxide

8 to 15wt%

B2O3

0 to 8 wt%

M2O3

0.5 to 3 wt% in which M is Al, a transition element, a lanthanide, or a mixture thereof

with these named ingredients comprising greater than or equal to 90wt% and less than or equal to 100 wt% of the glass composition provides blankets having superior temperature resistance to conventional glass wools, and superior insulating performance (i.e. lower thermal conductivity) than an alkaline earth silicate fibre while being soluble in body. M may be iron (Fe), zirconium (Zr) or titanium (Ti).

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Element composed of glass displaying reduced electrostatic charging

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IMPROVEMENTS IN OR RELATING TO GLASS FIBRES AND COMPOSITIONS CONTAINING GLASS FIBRES

... 1,243,972. Glass fibre composition. NATIONAL RESEARCH DEVELOPMENT CORP. 31 July, 1968 [4 Aug., 1967], No. 35901/67. Addition to 1,200,732. Heading C1M. [Also in Divisions C3 and D2] A composite fibre/cementitious product comprises alkali-resistant glass fibres which contain by weight #65% SiO 2 and #10% ZrO 2 , and whose alkali-resistance is that specified in Specification 1,200,732, in a cement matrix The fibres may be those specified in Specification 1,243,973. The fibres may have diameter (0À4-1À0) x 10-3 inches. The fibres are used to reinforce cementitious material, which may contain Portland cement. Pipes or roofing sheets may be formed from the reinforced cementitious material.

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Cation sensitive glass electrode

... The bulb of a glass electrode for measuring alkali ion concentration is formed from glass consisting essentially of lithia-alumina-silica comprising 2-15 mole per cent Al2O3, 24-30 mole per cent Li2O3, and 58-68 mole per cent SiO2, and substantially free from alkaline earth metals. Glasses having a high selectivity of a response to Na ion over K ion lie within the area ABCDE in Fig. 1. Glasses lying within the area JKFGHB are sensitive to both Na and K ions. In the manufacture of the glass, small quantities of volatile materials, vitreous colours, colloidal metals, and conventional fluxes may be added.

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OPTICAL GLASS

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Improvements in or relating to refractory glasses

... 467,362. Glass manufacture. GENERAL ELECTRIC CO., Ltd. (Patent-Treuhand-Ges. f³r Elektrische Gl³hlampen) April 6, 1936, No. 10095. [Class 56] A refractory glass, which is free from boric acid, and alkalies, contains 80-98 per cent of silica, 2-12 per cent of alumina, and 0-8 per cent of an alkaline earth, and its softening temperature is not below 1000‹ C. The glass is intended particularly for forming the envelopes of high-pressure metal vapour electric discharge lamps. Specifications 18053/11 and 2176/13, [both in Class 56], and 463,889, are referred to.

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Glass for pistons of television rendition tubes

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GLAS FUR KATHODENSTRAHLROHREN ZUR WIEDERGABE VON FERNSEHBILDERN

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WDM OF OPTICAL FILTERS AND GLASS SUBSTRATE FOR THE USE IN A WDM OPTICAL FILTER

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GLASS FIBERS

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ALUMINOSILIKATE OPTICAL GLASSES.

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MICRO GLASS BALL.

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Crystallized glass with negative coefficient of thermal expansion and method for manufacturing the same

A crystallized glass with negative coefficient of thermal expansion includes 38 wt % to 64 wt % of silica (SiO2); 30 wt % to 40 wt % of alumina (Al2O3); and 5 wt % to 12 wt % of lithium oxide (Li2O) as a basic component, and further includes more than one component selected from the group consisting of 0.5 wt % to 15 wt % of zirconia (ZrO2), 0.5 wt % to 6.5 wt % of titanium dioxide (TiO2), 0.5 wt % to 4 wt % of phosphorus pentoxide (P2O5), 2 wt % to 5 wt % of magnesium oxide (MgO), and 0 wt % to 5 wt % of magnesium fluoride (MgF2) in addition to the basic components. The crystallized glass may have a high negative coefficient of thermal expansion so that it has an advantage that it can be used as a thermal expansion compensation material according to the temperatures of all kinds of glasses and similar products thereof.

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Fining agents for silicate glasses

A fining agent for reducing the concentration of seeds or bubbles in a silicate glass. The fining agent includes at least one inorganic compound, such as a hydrate or a hydroxide that acts as a source of water. In one embodiment, the fining agent further includes at least one multivalent metal oxide and, optionally, an oxidizer. A fusion formable and ion exchangeable silicate glass having a seed concentration of less than about 1 seed/cm 3 is also provided. Methods of reducing the seed concentration of a silicate glass, and a method of making a silicate glass having a seed concentration of less than about 1 seed/cm 3 are also described.

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Tempered glass substrate and method of producing the same

A tempered glass substrate of the present invention is a tempered glass substrate, which has a compression stress layer on a surface thereof, and has a glass composition comprising, in terms of mass %, 40 to 71% of SiO 2 , 3 to 21% of Al 2 O 3 , 0 to 3.5% of Li 2 O, 7 to 20% of Na 2 O, and 0 to 15% of K 2 O.

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Glass substrate for information recording medium and magnetic information recording medium to which the glass substrate is applied

Disclosed are a glass substrate for an information recording medium, having excellent scratch resistance and a light weight and having high fracture toughness, the glass substrate having a fragility index value, measured in water, of 12 μm −1/2 or less or having a fragility index value, measured in an atmosphere having a dew point of −5° C. or lower, of 7 μm −1/2 or less, or the glass substrate comprising, by mol %, 40 to 75% of SiO 2 , 2 to 45% of B 2 O 3 and/or Al 2 O 3 and 0 to 40% of R′ 2 O in which R′ is at least one member selected from the group consisting of Li, Na and K), wherein the total content of SiO 2 , B 2 O 3 , Al 2 O 3 and R′ 2 O is at least 90 mol %, and a magnetic information recording medium comprising a magnetic recording layer formed on the glass substrate.

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Li2O-Al2O3-SiO2 BASED CRYSTALLIZED GLASS AND PRODUCTION METHOD FOR THE SAME

An object of the present invention is to provide a Li 2 O—Al 2 O 3 —SiO 2 based crystallized glass with excellent bubble quality even without using As 2 O 3 or Sb 2 O 3 as a fining agent and a method for producing the same. The Li 2 O—Al 2 O 3 —SiO 2 based crystallized glass of the present invention is a Li 2 O—Al 2 O 3 —SiO 2 based crystallized glass which does not substantially comprise As 2 O 3 and Sb 2 O 3 and comprises at least one of Cl, CeO 2 and SnO 2 , and has a S content of not more than 10 ppm in terms of SO 3 .

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Colored glass housing

There is provided a colored glass housing having characteristics suitable for a housing of an electronic device, that is, a light blocking property, high strength, and superior manufacturing cost. The colored glass housing includes glass whose absorbance at wavelength from 380 nm to 780 nm is 0.7 or more, suitably, whose absorption constant is 1 mm −1 or more, and is provided on an exterior of the electronic device. In order to obtain the above glass, it is preferable that, as a coloring component in the glass, at least one component selected from a group consisting of oxides of Co, Mn, Fe, Ni, Cu, Cr, V, and Bi amounting to 0.1% to 7% in terms of molar percentage on an oxide basis.

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Crystallized glass

Provided is crystallized glass, comprising, as a glass composition in terms of mass %, 55 to 73% of SiO 2 , 17 to 25% of Al 2 O 3 , 2 to 5% of Li 2 O, 2.5 to 5.5% of TiO 2 , 0 to 2.3% of ZrO 2 , 0.2 to 0.9% of SnO 2 , and 0.005 to 0.09% of V 2 O 5 , wherein the crystallized glass is substantially free of As 2 O 3 and Sb 2 O 3 .

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Tempered glass plate

Provided is a tempered glass sheet having a compression stress layer in a surface thereof, comprising, as a glass composition expressed in mass % in terms of oxides, 50 to 70% of SiO 2 , 5 to 20% of Al 2 O 3 , 0 to 5% of B 2 O 3 , 8 to 18% of Na 2 O, 2 to 9% of K 2 O, and 30 to 1,500 ppm of Fe 2 O 3 , and having a spectral transmittance in terms of a thickness of 1.0 mm at a wavelength of 400 to 700 nm of 85% or more, a chromaticity x of 0.3095 to 0.3120 in xy chromaticity coordinates (illuminant C, in terms of a thickness of 1 mm), and a chromaticity y of 0.3160 to 0.3180 in xy chromaticity coordinates (illuminant C, in terms of a thickness of 1 mm).

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Glass compositions with improved chemical and mechanical durability

The embodiments described herein relate to chemically and mechanically durable glass compositions and glass articles formed from the same. In another embodiment, a glass composition may include from about 70 mol. % to about 80 mol. % SiO 2 ; from about 3 mol. % to about 13 mol. % alkaline earth oxide; X mol. % Al 2 O 3 ; and Y mol. % alkali oxide. The alkali oxide may include Na 2 O in an amount greater than about 8 mol. %. A ratio of Y:X may be greater than 1 and the glass composition may be free of boron and compounds of boron. In some embodiments, the glass composition may also be free of phosphorous and compounds of phosphorous. Glass articles formed from the glass composition may have at least a class S3 acid resistance according to DIN 12116, at least a class A2 base resistance according to ISO 695, and a type HGA1 hydrolytic resistance according to ISO 720.

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ION EXCHANGEABLE LI-CONTAINING GLASS COMPOSITIONS FOR 3-D FORMING

According to one embodiment, a glass article may include SiO, AlO, LiO and NaO. The glass article may have a softening point less than or equal to about 810° C. The glass article may also have a high temperature CTE less than or equal to about 27×10/° C. The glass article may also be ion exchangeable such that the glass has a compressive stress greater than or equal to about MPa and a depth of layer greater than or equal to about 25 μm after ion exchange in a salt bath comprising KNOat a temperature in a range from about 390° C. to about 450° C. for less than or equal to approximately 15 hours. 1. A glass article comprising SiO , AlO , LiO and NaO , the glass article having:a softening point less than or equal to about 810° C.;{'sup': '−6', 'a high temperature CTE less than or equal to about 27×10/° C.; and'}{'sub': '3', 'a compressive stress greater than or equal to about 600 MPa and a depth of layer greater than or equal to about 25 μm after ion exchange in a salt bath comprising KNOin a temperature range from about 390° C. to about 450° C. for less than or equal to approximately 15 hours.'}2. The glass article of claim 1 , the glass article has L claim 1 , a* claim 1 , b* claim 1 , color coordinates of L from about 0 to about 5.0 claim 1 , a* from about −2.0 to about 2.0 claim 1 , and b* from about 0 to about −5.0.3. The glass article of claim 1 , wherein the glass article has an opacity greater than or equal to about 80% over a range of wavelengths from about 350 nm to about 750 nm.4. The glass article of comprising:{'sub': '2', 'from about 65 mol. % to about 71 mol. % SiO;'}{'sub': 2', '3, 'from about 7 mol. % to about 12 mol. % AlO;'}{'sub': '2', 'from about 1 mol. % to about 9 mol. % LiO;'}{'sub': '2', 'from about 6 mol. % to about 16 mol. % NaO;'}{'sub': '2', 'from about 0 mol. % to about 5 mol. % KO;'}from about 0.8 to about 10 mol. % of a divalent oxide, wherein the divalent oxide comprises at least one of MgO and ZnO; and{'sub': 2', '3', '2', '3, 'less ...

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Veneer Ceramic for Dental Restorations and Method for Veneering Dental Restorations

The invention is directed to veneer ceramics for dental restorations of framework ceramics comprising yttrium-stabilized zirconium dioxide. It is the object of the invention to make possible a translucent veneer ceramic which has high flexural strength as well as excellent adhesion to the framework ceramic of yttrium-stabilized zirconium dioxide. According to the invention, this object is met in a veneer ceramic for dental restorations made of yttrium-stabilized zirconium dioxide which is produced from the following components: a) SiO 2 58.0-74.0 percent by weight b) Al 2 O 3 4.0-19.0 percent by weight c) Li 2 O 5.0-17.0 percent by weight d) Na 2 O 4.0-12.0 percent by weight e) ZrO 2 0.5-6.0 percent by weight.

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GLASS FOR CHEMICAL STRENGTHENING

There is provided a glass for chemical strengthening having a black color tone and excelling in characteristics preferred for the purposes of housing or decoration of an electronic device, that is, bubble quality, strength, and light transmittance characteristics. A glass for chemical strengthening contains, in mole percentage based on following oxides, 55% to 80% of SiO, 3% to 16% of AlO, 0% to 12% of BO, 5% to 16% of NaO, 0% to 4% of KO, 0% to 15% of MgO, 0% to 3% of CaO, 0% to 18% of ΣRO (where R represents Mg, Ca, Sr, Ba or Zn), 0% to 1% of ZrO, and 0.1% to 7% of a coloring component having at least one metal oxide selected from the group consisting of oxides of Co, Mn, Fe, Ni, Cu, Cr, V and Bi. 1. A glass for chemical strengthening comprising , in mole percentage based on following oxides , 55% to 80% of SiO , 3% to 16% of AlO , 0% to 12% of BO , 5% to 16% of NaO , 0% to 4% of KO , 0% to 15% of MgO , 0% to 3% of CaO , 0% to 18% of ΣRO (where R represents Mg , Ca , Sr , Ba or Zn) , 0% to 1% of ZrO , and 0.1% to 7% of a coloring component having at least one metal oxide selected from the group consisting of oxides of Co , Mn , Fe , Ni , Cu , Cr , V and Bi.2. The glass for chemical strengthening according to claim 1 ,{'sub': 2', '3', '3', '4', '2', '3', '2', '5, 'wherein the coloring component in the glass is constituted of, in mole percentage based on oxides, 0.01% to 6% of FeO, 0% to 6% of CoO, 0% to 6% of NiO, 0% to 6% of MnO, 0% to 6% of CrO, and 0% to 6% of VO.'}3. The glass for chemical strengthening according to claim 1 , comprising 0.005% to 2% of a color correcting component having at least one metal oxide selected from the group consisting of oxides of Ti claim 1 , Ce claim 1 , Er claim 1 , Nd and Se.4. The glass for chemical strengthening according to claim 1 , comprising claim 1 , in mole percentage based on following oxides claim 1 , 60% to 80% of SiO claim 1 , 3% to 15% of AlO claim 1 , 5% to 15% of NaO claim 1 , 0% to 4% of KO claim 1 , 0% to 15% of ...

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GLASS SUBSTRATES WITH MODIFIED SURFACE RESISTANT TO WEATHERING

A light guide plate that includes a glass substrate including an edge surface and at least two major surfaces defining a thickness and an edge surface, the edge surface configured to receive light from a light source and the glass substrate configured to distribute the light from the light source, wherein the glass substrate comprises an alkali-containing bulk and an alkali-depleted surface layer, the alkali-depleted surface layer comprising about 0.5 atomic % alkali or less. Display products and methods of processing a glass substrate for use as a light guide plate are also provided. 1. A light guide plate , comprising:a glass substrate including an edge surface and at least two major surfaces defining a thickness and an edge surface configured to receive light from a light source and the glass substrate configured to distribute the light from the light source; wherein the glass substrate comprises:an alkali-containing bulk; andan alkali-depleted surface layer, the alkali-depleted surface layer comprising about 0.5 atomic % alkali or less.2. The light guide plate of claim 1 , wherein the alkali-depleted surface layer comprises about 0.5 atomic % alkaline earth or less.3. The light guide plate of claim 1 , wherein the alkali-depleted surface layer comprises greater than about 90 mol % SiOand at least about 5 mol % AlO.4. The light guide plate of claim 1 , wherein the light guide plate exhibits a transmittance normal to the alkali-depleted surface layer greater than 90% over a wavelength range from 400 nm to 700 nm.5. The light guide plate of claim 1 , further comprising one or more of a light extraction feature (LEF) and a lenticular lens on the alkali-depleted surface layer.6. The light guide plate of claim 1 , wherein the alkali-depleted surface layer reduces formation of weathering products upon aging at 60° C. and 90% relative humidity for 960 hours compared to a light guide plate that does not comprise an alkali-depleted surface layer.8. The light guide plate ...

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LAMINATED GLASS ARTICLE AND METHOD FOR FORMING THE SAME

A glass article includes a glass core layer and a glass cladding layer adjacent to the core layer. An average coefficient of thermal expansion (CTE) of the core layer is greater than an average CTE of the cladding layer. An effective 10P temperature of the glass article is at most about 750° C. 1. A method comprising:contacting a glass sheet with a forming surface to form a shaped glass article, the glass sheet comprising a glass core layer and a glass cladding layer adjacent to the core layer;{'sup': '9.9', 'wherein an average coefficient of thermal expansion (CTE) of the core layer is greater than an average CTE of the cladding layer, and an effective 10P temperature of the glass sheet is at most about 750° C.'}2. The method of claim 1 , further comprising printing a pattern on the glass sheet prior to the contacting step.3. The method of claim 2 , wherein the printing step comprises printing the pattern on the glass sheet using a printing process selected from the group consisting of screen printing claim 2 , flexographic printing claim 2 , gravure printing claim 2 , photo-pattern printing claim 2 , pad printing claim 2 , and combinations thereof.4. The method of claim 2 , wherein the pattern comprises a conductive pattern.5. The method of claim 2 , wherein the pattern comprises at least one of an ink or an enamel.6. The method of claim 2 , wherein the glass sheet is substantially planar during the printing step.7. The method of claim 2 , further comprising firing the glass sheet after the printing step and prior to or concurrent with the contacting step. This application is a divisional of U.S. patent application Ser. No. 15/309,055 filed on May 7, 2015 which claims the benefit of priority under 35 U.S.C. § 371 of International Application No. PCT/US2015/029671 filed May 7, 2015, which claims the benefit of priority to U.S. Application No. 61/989,704 filed May 7, 2014 the content of each of which is incorporated herein by reference in its entirety.This ...

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Process For Producing A Glazed Ceramic Body

The invention relates to a process for producing a glazed ceramic body, in which 1. Process for producing a glazed ceramic body , comprising(a) a glazing material is applied to a non-densely sintered substrate material and{'sub': I', '2, '(b) the substrate material and the glazing material are subjected to a heat treatment in a temperature range which extends from a first temperature Tto a second temperature T, which is higher than the first temperature, in order to obtain the glazed body,'}{'sub': 1', '2, 'sup': 2.5', '9, 'wherein, at the temperature T, the glazing material has a viscosity of more than 10Pa·s, and, at the temperature T, a viscosity of less than 10Pa·s.'}2. Process according to claim 1 , in which claim 1 , at the temperature T claim 1 , the glazing material has a viscosity of more than 10Pa·s claim 1 , and claim 1 , at the temperature T claim 1 , a viscosity of less than 10Pa·s.3. Process according to claim 1 , in which the non-densely sintered substrate material is a presintered substrate material.4. Process according to claim 1 , in which the non-densely sintered substrate material has a relative density in the range of from 30 to 90% claim 1 , based on the true density of the substrate material.5. Process according to claim 1 , in which the substrate material begins to sinter at the temperature T.6. Process according to claim 1 , in which the substrate material is kept at the temperature Tfor a period of 5 to 120 minutes.7. Process according to claim 1 , in which claim 1 , at the temperature T claim 1 , the substrate material has a relative density of at least 97% claim 1 , based on the true density of the substrate material.8. Process according to claim 1 , in which claim 1 , at a temperature T claim 1 , at which the substrate material has a relative density of 95% claim 1 , based on the true density of the substrate material claim 1 , the glazing material has a viscosity of more than 10Pa·s.9. Process according to claim 1 , in which the glazing ...

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METHODS OF MAKING A GLASS ARTICLE WITH A STRUCTURED SURFACE

A method of making a glass article, for example a glass light guide plate comprising at least one structured surface including a plurality of channels and peaks. The glass article may be suitable for enabling one dimensional dimming when used in a backlight unit for use as an illuminator for liquid crystal display devices. 1. A method of making a glass article , comprisingdepositing an etch mask on a first major surface of a glass sheet, the etch mask forming a plurality of parallel rows on the first major surface;exposing the glass sheet to an etchant, thereby removing glass from the first major surface of the glass sheet between the plurality of parallel rows, the removing glass forming a plurality of channels in the first major surface of the glass sheet; andremoving the etch mask, the resultant glass article comprising a glass sheet with a plurality of channels formed in the first major surface, at least one channel of the plurality of channels comprising a depth H in a range from about 5 μm to about 300 μm, a width S defined at H/2, and wherein a ratio S/H is in a range from about 1 to about 15.2. The method according to claim 1 , further comprising depositing an adhesion layer on the first major surface prior to depositing the etch mask.3. The method according to claim 2 , wherein the adhesion layer comprises a silane layer or a siloxane layer.46-. (canceled)7. The method according to claim 1 , wherein the etch mask is applied by a screen printing process.8. The method according to claim 7 , wherein the screen printing process comprises a cured emulsion pattern on a surface of a woven screen claim 7 , and a string angle of the woven screen relative to the cured emulsion pattern is in a range from about 20° to about 45°.9. The method according to claim 8 , wherein the woven screen comprises stainless steel wires.10. The method according to claim 1 , wherein the etchant comprises HF.11. The method according to claim 10 , wherein the etchant further comprises HNO ...

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GLASS-BASED ARTICLE WITH ENGINEERED STRESS DISTRIBUTION AND METHOD OF MAKING SAME

Disclosed herein are glass-based articles having a first surface having an edge, wherein a maximum optical retardation of the first surface is at the edge and the maximum optical retardation is less than or equal to about 40 nm and wherein the optical retardation decreases from the edge toward a central region of the first surface, the central region having a boundary defined by a distance from the edge toward a center point of the first surface, wherein the distance is ½ of the shortest distance from the edge to the center point. 1. A glass-based article comprising:a first surface having an edge,wherein a maximum optical retardation of the first surface is at the edge and the maximum optical retardation is less than or equal to about 40 nm, andwherein the optical retardation decreases from the edge toward a central region of the first surface, the central region having a boundary defined by a distance from the edge toward a center point of the first surface, wherein the distance is ½ of the shortest distance from the edge to the center point.2. The glass-based article of claim 1 , wherein the first surface has a flatness of less than or equal to about 25 μm.3. The glass-based article of claim 1 , wherein the article has a coefficient of thermal expansion (CTE) in a range from about 25×10/° C. to about 130×10/° C. over a temperature range from 25° C. to 300° C.4. The glass-based article of claim 1 , wherein the optical retardation at any point along the boundary of the central region is the same.5. The glass-based article of claim 1 , wherein a shape of the glass-based article is selected from the group consisting of a circle claim 1 , a square claim 1 , a rectangle and an oval.6. The glass-based article of claim 1 , wherein an optical retardation profile on the first surface is symmetrical relative to the center point of the surface.7. The glass-based article of claim 1 , wherein the maximum optical retardation is less than or equal to about 25 nm.8. The glass- ...

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GLASS-BASED ARTICLE WITH ENGINEERED STRESS DISTRIBUTION AND METHOD OF MAKING SAME

Disclosed herein are glass-based articles having a first surface having an edge, wherein a maximum optical retardation of the first surface is at the edge and the maximum optical retardation is less than or equal to about 40 nm and wherein the optical retardation decreases from the edge toward a central region of the first surface, the central region having a boundary defined by a distance from the edge toward a center point of the first surface, wherein the distance is ½ of the shortest distance from the edge to the center point. 1. A method for processing a glass-based substrate comprising:pressing a glass-based substrate having a first surface and a second opposing surface between two surfaces;heating the glass-based substrate pressed between the two surfaces such that the entire glass-based substrate is above a first temperature, wherein the first temperature is above the annealing temperature of the glass-based substrate;holding the glass-based substrate pressed between the two surfaces at the first temperature for a predetermined time; andcooling the glass-based substrate pressed between the two surfaces after the predetermined time such that the entire glass-based substrate is below a second temperature, wherein the second temperature is below the strain point of the glass-based substrate.2. The method of claim 1 , wherein a maximum optical retardation of a first surface of the glass-based substrate is at the edge and the maximum optical retardation is less than or equal to about 40 nm and wherein the optical retardation decreases from the edge toward a central region of the first surface claim 1 , the central region having a boundary defined by a distance from the edge toward a center point of the first surface claim 1 , wherein the distance is ½ of the shortest distance from the edge to the center point.3. The method of claim 1 , wherein the article has a coefficient of thermal expansion (CTE) in a range from about 25×10/° C. to about 130×10/° C. over a ...

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Method for manufacturing window

A method for manufacturing a window includes providing a base glass, and strengthening the base glass by exposing the base glass to a strengthening molten salt and an additive. The additive contains at least one of Al2(SO4)3, Al(NO3)3, K2SiO3, Na2SiO3, KCl, Ca(NO3)2, and Mg(NO3)2, and a window having good surface compressive stress and excellent surface chemical resistance may thus Ire provided.

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Adhering glass cover sheet to a frame

Disclosed herein are embodiments of a method of forming a glass article having a glass cover sheet and a frame. The glass cover sheet includes a first major surface and a second major surface in which the second major surface is opposite the first major surface. The frame has a support surface. In the method, a pressure-sensitive adhesive tape is applied to a first region of the glass cover sheet or of the frame. A liquid adhesive is applied to a second region of the glass cover sheet or of the frame. Pressure is applied to the glass cover sheet and the frame to cause the pressure-sensitive adhesive to adhere the glass cover sheet to the frame at a first bond strength. The liquid adhesive is cured to adhere the glass cover sheet to the frame at a second bond strength that is greater than the first bond strength.

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3D PRINTER PRINTHEAD, 3D PRINTER USING SAME, METHOD FOR MANUFACTURING MOLDED PRODUCT BY USING 3D PRINTER, METHOD FOR MANUFACTURING ARTIFICIAL TOOTH BY USING 3D PRINTER, AND METHOD FOR MANUFACTURING MACHINABLE GLASS CERAMIC MOLDED PRODUCT BY USING 3D PRINTER

The present invention relates to a 3D printer printhead, a 3D printer using the same, a method for manufacturing a molded product by using the 3D printer, a method for manufacturing an artificial tooth by using the 3D printer, and a method for manufacturing a machinable glass ceramic molded product by using the 3D printer, the 3D printer printhead comprising: an inlet through which glass wire, which is a raw material, is introduced; a heating means for heating the glass wire introduced through the inlet; a melting furnace for providing a space in which the glass wire is fused; and a nozzle connected to the lower part of the melting furnace so as to temporarily store the fused glass or discharge a targeted amount of the fused glass, wherein the melting furnace includes an exterior frame made from a heat resistant material and an interior frame having a crucible shape, and the interior frame is made from platinum (Pt), a Pt alloy or graphite, which have a low contact angle, or a material having a surface coated with Pt or a diamond-like carbon (DLC) so as to prevent the fused glass from sticking thereto. According to the present invention, the molded product, the artificial tooth, and the machinable glass ceramic molded product can be manufactured with excellent mechanical properties, thermal durability, chemical durability and oxidation resistance and outstanding texture by using the glass wire as a raw material. 1. A 3D printer printhead comprising:an inlet thorough which a glass wire, which is a raw material, is introduced;a heating means configured to heat the glass wire introduced through the inlet;a melting furnace configured to provide a space in which the glass wire is melted to produce a molten glass; anda nozzle coupled to a lower part of the melting furnace to temporarily store the molten glass or discharge a desired amount of the molten glass,wherein the melting furnace comprises an outer frame made of a heat-resistant material and an inner frame having a ...

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GLASS-CERAMIC WORKTOP

The present invention relates to an advantageously interactive item of furniture and/or appliance comprising: 1. An item of furniture and/or appliance , advantageously interactive , comprising:{'sup': '2', 'sub': 'L', 'at least one worktop formed from at least one substrate made of a monolithic glazing material and of area larger than 0.7 m, said substrate having a lightness L* lower than 10, a haze lower than 30% and a light transmission Tlower than 10%;'}at least one heating element;at least one light source, in particular intended to light up one or more zones or one or more elements or displays of the substrate, this source in particular being located under the substrate and being hidden thereby when this source is turned off; andat least one interface for communicating with at least one element of the worktop such as the one or more light sources and/or the one or more heating elements and/or if needs be wirelessly with at least one external element.2. The item of furniture and/or appliance as claimed in claim 1 , characterized in that the area of the substrate made of a glazing material is larger than 0.9 m claim 1 , especially larger than 1 mand in particular at least 2 m claim 1 , the thickness of said substrate being at least 2 mm claim 1 , especially at least 2.5 mm claim 1 , and in particular about 3 to 30 mm claim 1 , said thickness advantageously being smaller than 15 mm claim 1 , in particular about 3 to 15 mm and especially from 3 to 10 mm.3. The item of furniture and/or appliance of claim 1 , characterized in that the substrate has a flatness lower than 0.1% of the diagonal of the substrate claim 1 , and preferably lower than 3 mm claim 1 , especially lower than 2 mm and in particular lower than 1 mm or even of about zero.4. The item of furniture and/or appliance of claim 1 , characterized in that the substrate is made of tempered glass or glass-ceramic and preferably is made of glass-ceramic.5. The item of furniture and/or appliance of claim 1 , ...

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ZIRCON COMPATIBLE GLASSES FOR DOWN DRAW

A glass that is down-drawable and ion exchangeable. The glass has a temperature Twhich the viscosity is 35 kilopoise. Tis less than the breakdown temperature Tof zircon. 131-. (canceled)32. A glass comprising SiO , AlO , and NaO , wherein SiO+BO≧66 mol % , AlO≧7 mol % , BO≦7 mol % , NaO≧9 mol % , BO+NaO+KO+MgO+CaO≧18 mol % , and CaO≦2 mol % , wherein 610.6 mol %−41.0[AlO]+9.9[BO]−3.5[NaO]−20.2[KO]−25.6[MgO]+34.2[CaO]≧0 , where concentrations [AlO] , [BO] , [NaO] , [KO] , [MgO] , and [CaO] are expressed in mol %.33. The glass of claim 32 , wherein the glass is ion exchanged to form a compressive layer on at least one surface of the glass.34. The glass of claim 33 , wherein the ion exchanged glass has a compressive stress of at least 350 MPa and a compressive depth of layer of at least 20 microns.35. The glass of claim 32 , wherein the glass comprises: 61 mol %≦SiO≦75 mol %; 7 mol %≦AlO≦15 mol %; 0 mol %≦BO≦7 mol %; 9 mol %≦NaO≦21 mol %; 0 mol %≦KO≦4 mol %; 0 mol %≦MgO≦7 mol %; and 0 mol %≦CaO≦3 mol %.36. The glass of claim 32 , wherein the glass is down-drawable.37. The glass of claim 32 , wherein the glass is fusion drawn into a glass sheet.38. The glass of claim 37 , wherein the glass sheet has less than one inclusion of solid ZrOper pound of glass sheet.39. The glass of claim 32 , wherein BO+NaO+KO−AlO≧0 mol %.40. The glass of claim 32 , wherein the glass has a liquidus viscosity of greater than about 100 kpoise.41. The glass of claim 32 , wherein the glass has a 350 poise temperature Tof less than or equal to 1650° C.42. The glass of claim 32 , wherein the glass is formed into one of a cover plate claim 32 , a window claim 32 , a casing claim 32 , a display screen claim 32 , and a touch panel of an electronic device.43. The glass of claim 32 , wherein the glass has a temperature Twhich the glass has a viscosity of 35 kpoise and a zircon breakdown temperature Tat which zircon breaks down to form ZrOand SiO claim 32 , wherein Tis greater than T.44. A glass ...

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Transparent silicate glasses with high fracture toughness

Provided herein are glass based articles comprising SiO 2 , Al 2 O 3 , and two or more metal oxides selected from the group consisting of La 2 O 3 , BaO, Ta 2 O 5 , Y 2 O 3 , and HfO 2 . The glass based articles typically are characterized by a high fracture toughness (e.g., at least 0.86 MPa*m 0.5 ), a high Young's modulus value (e.g., at least 85 GPa) and/or a stress optical coefficient (SOC) of not more than 3 Brewster (e.g., about 1.3 Brewster to about 2 Brewster). Also provided herein are glass based articles comprising SiO 2 and two or more of M x O y , wherein M is Ba, La, Ta, Y, Al or Hf; wherein the total amount of SiO 2 is the same or substantially the same as that of a reference glass based article comprising two or more binary compositions of M x O y —SiO 2 , wherein the reference glass based article has the same molar percentage of each M x O y , and the molar ratio of M x O y to SiO 2 in each binary composition is 4/(c*x), wherein c is the number of charges of M.

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ION-EXCHANGED GLASS OF HIGH SURFACE COMPRESSION AND SHALLOW DEPTH OF LAYER WITH HIGH RESISTANCE TO RADIAL CRACK FORMATION FROM VICKERS INDENTATION

Disclosed are alkali aluminosilicate glasses having unexpected resistance to indentation cracking. The glasses obtain this high resistance as a result of a high level of surface compression accompanied by a shallow depth of layer. The advantaged glasses show greater resistance to radial crack formation from Vickers indentation than glasses with the same compressive stress, but higher depths of layer. 1. A glass article comprising:{'br': None, 'sub': '2', 'about 40 mol % to about 70 mol % SiO;'}{'br': None, 'sub': 2', '3, 'about 11 mol % to about 25 mol % AlO;'}{'br': None, 'sub': 2', '5, 'at least 4 mol % to about 15 mol.% PO;'}{'br': None, 'sub': 2', '3, 'less than about 1 mol % BO; and'}{'br': None, 'sub': '2', 'from 13 mol % to about 25 mol % NaO.'}2. The glass article of claim 1 , wherein:{'br': None, 'sub': 2', '3', 'x, '0.6<[MO(mol %)/RO(mol %)]<1.4; or \u2003\u2003i.'}{'br': None, 'sub': 2', '5', '2', '2', '3, '1.3<[(PO+RO)/MO]≦2.3, \u2003\u2003ii.'}{'sub': 2', '3', '2', '3', '2', '3', 'x', '2, 'where MO=AlO+BO, RO is the sum of monovalent and divalent cation oxides present in the glass composition, and RO is the sum of monovalent cation oxides present in the glass composition.'}3. The glass article of claim 1 , wherein the glass article is ion-exchange strengthened with a compressive stress from about 600 to about 1200 MPa at a depth of layer from about 10 to about 40 μm and an indentation fracture threshold from about 10 to about 50 kg.4. The glass article of claim 1 , wherein the glass article satisfies one or more of:{'br': None, 'sub': 2', '3', 'x, '0.6<[MO(mol %)/RO(mol %)]<1.4;'}{'br': None, 'sub': 2', '3', 'x, '0.6<[MO(mol %)/RO(mol %)]<1;'}{'br': None, 'sub': 2', '5', '2', '2', '3, '1.3<[(PO+RO)/MO]≦2.3; and'}{'br': None, 'sub': 2', '5', '2', '2', '3, '1.5<[(PO+RO)/MO]≦2.0.'}5. The glass article of claim 1 , wherein the glass article comprises less than 1 mol % KO or the monovalent and divalent cation oxides are selected from the group consisting of ...

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Ion exchangeable glass with high crack initiation threshold

Alkali aluminosilicate glasses that are resistant to damage due to sharp impact and capable of fast ion exchange are provided. The glasses comprise at least 4 mol % P 2 O 5 and, when ion exchanged, have a Vickers indentation crack initiation load of at least about 7 kgf.

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ION EXCHANGEABLE LI-CONTAINING GLASS COMPOSITIONS FOR 3-D FORMING

According to one embodiment, a glass article may include SiO, AlO, LiO and NaO. The glass article may have a softening point less than or equal to about 810° C. The glass article may also have a high temperature CTE less than or equal to about 27×10/° C. The glass article may also be ion exchangeable such that the glass has a compressive stress greater than or equal to about 600 MPa and a depth of layer greater than or equal to about 25 μm after ion exchange in a salt bath comprising KNOat a temperature in a range from about 390° C. to about 450° C. for less than or equal to approximately 15 hours. 127-. (canceled)28. A glass article comprising:{'sub': '2', 'greater than or equal to 67 mol. % to about 71 mol. % SiO;'}{'sub': 2', '3, 'from about 7 mol. % to about 12 mol. % AlO;'}{'sub': '2', 'from about 1 mol. % to about 9 mol. % LiO;'}{'sub': '2', 'less than about 16 mol. % NaO;'}{'sub': '2', 'greater than 0 mol. % to about 5 mol. % KO; and'}from about 0.8 mol. % to about 10 mol. % of a divalent oxide, wherein the divalent oxide comprises greater than 0 mol. % to about 1 mol. % CaO and at least one of MgO and ZnO.29. The glass article of further comprising from about 0.5 mol. % to about 2 mol % ZrO.30. The glass article of claim 28 , wherein a concentration of KO is less than or equal to about 3.0 mol. %.31. The glass article of claim 28 , wherein a concentration of CaO is less than or equal to about 0.5 mol. %.32. The glass article of claim 28 , wherein the concentration of BOis less than or equal to 1.0 mol. %.33. The glass article of claim 28 , wherein the glass article is substantially free of BO.34. The glass article of claim 28 , wherein a sum of a concentration of AlO(mol. %) claim 28 , and a concentration of the divalent oxide (mol. %) is greater than about 10 mol %.35. The glass article of claim 28 , wherein a concentration of SiOis greater than or equal to 68 mol. %.36. The glass article of claim 28 , wherein the glass article is ion exchange strengthened. ...

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METHODS FOR MANUFACTURING OR REINFORCING CARBON-CONTAINING GLASS MATERIALS

Methods for manufacturing and/or reinforcing a carbon-containing glass material are disclosed. The method includes supplying a non-thermal equilibrium plasma including a plurality of positive charged gas particles and a plurality of ionized inert gas particles into a reaction chamber, and accelerating at least the plurality of positive charged gas particles through the reaction chamber based on application of an external electric potential to the non-thermal equilibrium plasma. The method includes bombarding a surface-to-air interface of the glass material with the accelerated positive charged gas particles and the ionized inert gas particles, and forming an interphase region in the glass material in response to the bombardment. The method includes forming a compressive stress layer in the glass material in response to the bombardment by at least the ionized inert gas particles. The compressive stress layer may be disposed between the interphase region and the surface-to-air interface of the carbon-containing glass material. 1. A method of reinforcing a carbon-containing glass material including a surface-to-air interface , the method comprising:supplying a non-thermal equilibrium plasma comprising a plurality of positive charged gas particles and a plurality of ionized inert gas particles into a reaction chamber;accelerating at least the plurality of positive charged gas particles through the reaction chamber based on application of an external electric potential to the non-thermal equilibrium plasma;bombarding the surface-to-air interface of the carbon-containing glass material with the accelerated positive charged gas particles and the ionized inert gas particles;forming an interphase region in the carbon-containing glass material in response to the bombardment by the accelerated positive charged gas particles and the ionized inert gas particles, the interphase region having a plurality of voids formed therein and extending from the surface-to-air interface along ...

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GLASS PLATE FOR LIGHT GUIDE PLATE

A glass plate for a light guide plate includes a light emitting surface; and a light scattering surface that is opposite to the light emitting surface, wherein a refractive index distribution is provided between the light emitting surface and the light scattering surface in a plate thickness direction, and wherein a refractive index calculated from a measured value of reflectance of the light scattering surface is greater than a refractive index of an inner part of the glass plate measured by a V block method after each of the light emitting surface and the light scattering surface is polished and removed by 100 microns. 1. A glass plate for a light guide plate comprising:a light emitting surface; anda light scattering surface that is opposite to the light emitting surface,wherein a refractive index distribution is provided between the light emitting surface and the light scattering surface in a plate thickness direction, andwherein a refractive index calculated from a measured value of reflectance of the light scattering surface is greater than a refractive index of an inner part of the glass plate that is measured by a V block method after each of the light emitting surface and the light scattering surface is polished and removed by 100 microns.2. The glass plate for the light guide plate according to claim 1 , wherein a refractive index calculated from a measured value of reflectance of the light emitting surface is less than the refractive index of the inner part of the glass plate that is measured by the V block method after each of the light emitting surface and the light scattering surface is polished and removed by 100 microns.3. A glass plate for a light guide plate comprising:a light emitting surface; anda light scattering surface that is opposite to the light emitting surface,wherein a refractive index distribution is provided between the light emitting surface and the light scattering surface in a plate thickness direction, andwherein a refractive index ...

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GLASS-RESIN COMPOSITE

A glass-resin composite of the present invention includes a plurality of glass sheets and a resin sheet which are integrally combined with each other via an organic resin intermediate layer, wherein, out of outer glass sheets of the plurality of glass sheets, at least one glass sheet has a crystallinity of 30% or less and a Young's modulus higher than a Young's modulus of its inner adjacent glass sheet by 5 GPa or more. 1. A glass-resin composite for a window glass , comprising at least a plurality of glass sheets and a resin sheet ,wherein the plurality of glass sheets and the resin sheet are integrally combined with each other via an organic resin intermediate layer, andwherein, out of outer glass sheets of the plurality of glass sheets, at least one glass sheet has a crystallinity of 30% or less and a Young's modulus higher than a Young's modulus of its inner adjacent glass sheet by 5 GPa or more.2. The glass-resin composite according to claim 1 , wherein claim 1 , out of the outer glass sheets claim 1 , at least one glass sheet has a glass transition temperature of 850° C. or less.3. The glass-resin composite according to claim 1 , wherein claim 1 , out of the outer glass sheets claim 1 , at least one glass sheet is amorphous claim 1 , and comprises as a glass composition claim 1 , in terms of mol % claim 1 , 45% to 80% of SiO claim 1 , 5% to 30% of AlO claim 1 , 0% to 20% of LiO+NaO+KO claim 1 , and 3% to 35% of MgO+CaO+SrO+BaO.4. The glass-resin composite according to claim 1 , wherein an innermost glass sheet of the plurality of glass sheets comprises soda lime glass.5. The glass-resin composite according to claim 1 , wherein the resin sheet is arranged on an inside with respect to an innermost glass sheet of the plurality of glass sheets.6. The glass-resin composite according to claim 1 , wherein the resin sheet comprises a polycarbonate sheet.7. The glass-resin composite according to claim 1 , wherein the glass-resin composite has a total thickness of 45 mm ...

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Strengthened glass articles having improved survivability

Embodiments are directed to strengthened glass articles comprising a thickness t≦1 mm (1000 μm), an inner region under a central tension CT (in MPa), and at least one compressive stress layer adjacent the inner region and extending within the strengthened glass article from a surface of the strengthened glass article to a depth of layer DOL (in μm), wherein the strengthened glass article is under a compressive stress at the surface CS s (in MPa), wherein the strengthened glass article is an alkali aluminosilicate glass article comprising 0-5 mol % Li 2 O, and at least 3 mol % Al 2 O 3 , and wherein the DOL≧70 μm, and a CS s /DOL ratio≧2.5 MPa/μm.

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Fining agents for silicate glasses

A fining agent for reducing the concentration of seeds or bubbles in a silicate glass. The fining agent includes at least one inorganic compound, such as a hydrate or a hydroxide that acts as a source of water. In one embodiment, the fining agent further includes at least one multivalent metal oxide and, optionally, an oxidizer. A fusion formable and ion exchangeable silicate glass having a seed concentration of less than about 1 seed/cm 3 is also provided. Methods of reducing the seed concentration of a silicate glass, and a method of making a silicate glass having a seed concentration of less than about 1 seed/cm 3 are also described.

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GLASS PLATE FOR HEAT TREATMENT

An object of the present invention is to provide a glass plate capable of suppressing deformation of a glass product that is subject to load in a heat treatment process at a temperature not more than the glass strain point, such as chemical strengthening and coating. The present invention relates to a glass plate for heat treatment, in which the dimensionless index determined by the following formula is 1.6×10or less, the average viscosity η is log η≦15.1 log Pa·s or less, the relationship between the fictive temperature Tand the annealing point Tis T≧(T+5), and when the plate thickness h of glass is 7×10m or more, the displacement at the load point during the load applying time period is 78 μm or less: Dimensionless index=load F×load applying time period/(average viscosity η×plate thickness h). 4. The glass plate for heat treatment according to claim 2 , wherein the average viscosity η is log η≦15.1 log Pa·s.5. The glass plate for heat treatment according to claim 3 , wherein the average viscosity η is log η≦15.1 log Pa·s.6. The glass plate for heat treatment according to claim 1 , wherein the glass plate has a size of 1 claim 1 ,000 mm or more×1 claim 1 ,000 mm or more.7. The glass plate for heat treatment according to claim 2 , wherein the glass plate has a size of 1 claim 2 ,000 mm or more×1 claim 2 ,000 mm or more.8. The glass plate for heat treatment according to claim 3 , wherein the glass plate has a size of 1 claim 3 ,000 mm or more×1 claim 3 ,000 mm or more.9. The glass plate for heat treatment according to claim 1 , wherein the glass plate is formed by a float process.10. The glass plate for heat treatment according to claim 2 , wherein the glass plate is formed by a float process.11. The glass plate for heat treatment according to claim 3 , wherein the glass plate is formed by a float process. The present invention relates to a glass plate for heat treatment. More specifically, the present invention relates to a glass plate for use in a display/opening ...

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Method for achieving a stress profile in a glass

A method for generating various stress profiles for chemically strengthened glass. An alkali aluminosilicate glass is brought into contact with an ion exchange media such as, for example, a molten salt bath containing an alkali metal cation that is larger than an alkali metal cation in the glass. The ion exchange is carried out at temperatures greater than about 420° C. and at least about 30° C. below the anneal point of the glass.

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STRENGTHENED GLASS SUBSTRATE MANUFACTURING METHOD AND STRENGTHENED GLASS SUBSTRATE

A method of manufacturing a tempered glass substrate includes: melting glass raw materials blended so as to have a glass composition including, in terms of mass %, 40 to 71% of SiO, 3 to 23% of AlO, 0 to 3.5% of LiO, 7 to 20% of NaO, and 0 to 15% of KO; forming the resultant molten glass into a sheet shape; and performing ion exchange treatment in a KNOmolten salt, the KNOmolten salt having a controlled concentration of Na ions, to form a compressive stress layer in a surface of the glass. 1. A method of manufacturing a tempered glass substrate , comprising:{'sub': 2', '2', '3', '2', '2', '2, 'melting glass raw materials blended so as to have a glass composition comprising, in terms of mass %, 40 to 71% of SiO, 3 to 23% of AlO, 0 to 3.5% of LiO, 7 to 20% of NaO, and 0 to 15% of KO;'}forming the resultant molten glass into a sheet shape; and{'sub': 3', '3, 'performing ion exchange treatment in a KNOmolten salt, the KNOmolten salt having a controlled concentration of Na ions, to form a compressive stress layer in a surface of the glass.'}2. A method of manufacturing a tempered glass substrate , comprising:{'sub': 2', '2', '3', '2', '2', '2, 'melting glass raw materials blended so as to have a glass composition comprising, in terms of mass %, 40 to 71% of SiO, 3 to 23% of AlO, 0 to 3.5% of LiO, 7 to 20% of NaO, and 0 to 15% of KO;'}forming the resultant molten glass into a sheet shape; and{'sub': '3', 'performing ion exchange treatment in a KNOmolten salt comprising 1,000 to 50,000 ppm of Na ions to form a compressive stress layer in a surface of the glass.'}3. A method of manufacturing a tempered glass substrate , comprising:{'sub': 2', '2', '3', '2', '2', '2, 'melting glass raw materials blended so as to have a glass composition comprising, in terms of mass %, 40 to 71% of SiO, 3 to 23% of AlO, 0 to 3.5% of LiO, 7 to 20% of NaO, and 0 to 15% of KO;'}forming the resultant molten glass into a sheet shape; and{'sub': '3', 'performing ion exchange treatment in a ...

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CHEMICALLY STRENGTHENED GLASS

The present invention relates to a chemically strengthened glass satisfying A[MPa] of 600 or more, A[MPa] of 50 or more, B[μm] of 6 or less, B[μm] of 10% or more of t [μm], C [MPa] of −30 or less, and A/B[MPa/μm] of 100 or more when the chemically strengthened glass has a thickness t [μm] and a profile of a stress value [MPa] at a depth x [μm] from a glass surface is approximated by an error least-squares method in a region of 0Aand BAand B Подробнее

GLASS ARTICLES WITH ELONGATE MICROSTRUCTURES AND LIGHT EXTRACTION FEATURES

Glass articles and glass light guide plates are disclosed that can be used in a backlight unit suitable for use as an illuminator for liquid crystal display devices. The glass article comprises a glass sheet including a first major surface comprising a plurality of channels or elongate microstructures, which can be separated by a non-zero spacing, the glass sheet further comprising a second major surface opposite the first major surface, and at least one of the first major surface and the second major surface comprising light extraction features formed therein. The glass article can be a light guide plate part of a backlight unit including a plurality of light emitting diodes arranged in an array along at least one edge surface of the glass sheet. 1. A glass article comprising a glass sheet including a first major surface comprising a plurality of channels formed therein , wherein adjacent channels of the plurality of channels are separated by a non-zero distance W , at least one channel of the plurality of channels comprising a maximum depth H and a width S measured at one-half of the maximum depth (H/2) and comprising a ratio W/H in a range from about 1 to about 15; andthe glass sheet further comprising a second major surface opposite the first major surface, at least one of the first major surface or the second major surface comprising light extraction features formed therein.2. The glass article according to claim 1 , wherein W/H is in a range from about 2 to about 10.3. (canceled)4. The glass article according to claim 2 , wherein W/S is in a range from about 0.1 to about 5.5. (canceled)6. (canceled)7. The glass article according to claim 1 , wherein a maximum thickness T of the glass sheet is in a range from about 0.1 mm to about 2.5 mm.8. (canceled)9. The glass article according to claim 1 , wherein the light extraction features comprise a plurality of etched discrete microstructures.10. The glass article according to claim 1 , wherein the glass sheet ...

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Fiberglass Materials, Methods Of Making, And Applications Thereof

Embodiments of the present invention described herein relate to fiberglass materials, composite glass materials, methods of making fiberglass materials and composite glass materials, and different applications of fiberglass materials and composite glass materials. The fiberglass materials can include a bimodal particle size distribution. The fiberglass materials can include an average aspect ratio of greater than about 2 to 1. Also described herein are composite glass materials including a first glass material and a second material. The second material can include at least one of post-consumer glass waste, fly ash, metakaolin, and slag. Also described herein are methods of making a composite glass material including providing a first glass material to a mixer; providing a second material to the mixer; and co-milling the first glass material and a second material to form a composite glass material.

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LASER WELDING OF HIGH THERMAL EXPANSION GLASSES AND GLASS-CERAMICS

Disclosed herein are methods for welding a first substrate and a second substrate, the method comprising bringing the first and second substrates into contact to form a substrate interface, and directing a laser beam operating at a predetermined wavelength through the second substrate onto the substrate interface, wherein the first substrate absorbs light from the laser beam in an amount sufficient to form a weld between the first substrate and the second substrate. The disclosure also relates to glass and/or glass-ceramic packaging and OLED display produced according to the methods disclosed herein. 1. A method for welding a first and second substrate comprising:(a) bringing the first and second substrates into contact to form a substrate interface;(b) directing a laser beam operating at a predetermined wavelength through the second substrate onto the substrate interface;wherein the first substrate absorbs light from the laser beam in an amount sufficient to form a weld between the first substrate and the second substrate;{'sup': −1', '−1, 'wherein the first substrate has an absorption at the predetermined wavelength of greater than about 10 cmand the second substrate has an absorption at the predetermined wavelength of less than about 1 cm; and'}wherein at least one of the first and second substrates has a coefficient of thermal expansion greater than about 5 ppm/° C.2. The method of claim 1 , wherein the first and/or second substrates are chosen from glasses claim 1 , ceramics claim 1 , and glass-ceramics.3. The method of claim 2 , wherein the first and/or second substrates are chosen from soda-lime silicate claim 2 , aluminosilicate claim 2 , alkali-aluminosilicate claim 2 , borosilicate claim 2 , alkali-borosilicate claim 2 , aluminoborosilicate claim 2 , and alkali-aluminoborosilicate glasses and glass-ceramics.4. The method of claim 1 , wherein the first and/or second substrates are chosen from pre-stressed laminates and chemically strengthened and/or ...

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Amorphous Silica Products, Articles, and Particles and Methods of Producing Amorphous Silica Products, Articles, and Particles from Concrete

Concrete may be melted to form a glass product. Methods and batch compositions including concrete may be used to produce amorphous silica materials including, but not limited to, glass, container glass, fiber glass, glass bead, glass spheres, sheet or plate glass, glass aggregate, glass sand, abrasives, proppants, foamed glass, and manufactured glass articles. The initial processing steps include preparing a melt batch comprising concrete and, optionally, other components, melting the melt batch, and cooling the melted melt batch. Further processing steps may be utilized to produce the glass article. 1. A method of producing an amorphous silica material , comprising:preparing a batch comprising concrete;melting the batch in a furnace to melt effluent; andcooling the melt effluent to form amorphous silica particles, mass or product.2. The method of claim 1 , comprising crushing the amorphous silica particles claim 1 , mass or product to form glass particles.3. The method of claim 1 , comprising molding the amorphous silica particles claim 1 , mass or product to form a glass container or other glass article.4. The method of claim 1 , comprising floating the melt effluent to form a sheet of glass claim 1 , wherein the mass is the sheet of glass.5. The method of claim 1 , wherein the batch comprises glass cullet claim 1 ,6. The method of claim 2 , wherein the batch comprises at least one flux.7. The method of claim 1 , wherein the batch comprises at least one flux.8. The method of claim 5 , wherein the glass cullet is in a concentration range from 1 wt. % to 95 wt. %.9. The method of claim 5 , wherein the glass cullet is in a concentration range from 1 wt. % to 80 wt. %.10. The method of claim 5 , wherein the glass cullet is in a concentration range from 1 wt. % to 50 wt. %.11. The method of claim 5 , wherein the glass cullet is in a concentration range from 1 wt. % to 25 wt. %.12. The method of claim 5 , wherein the glass cullet is in a concentration range from 10 wt. ...

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CHEMICALLY STRENGTHENED GLASS, AND GLASS FOR CHEMICAL STRENGTHENING

A glass for chemical strengthening contains, in mole percentage on an oxide basis, 58 to 80% of SiO, 13 to 18% of AlO, 0 to 5% of BO, 0.5 to 4% of PO, 4 to 10% of LiO, 5 to 14% of Na, 0 to 2% of KO, 0 to 11% of MgO, 0 to 5% of CaO, 0 to 20% of SrO, 0 to 15% of BaO, 0 to 10% of ZnO, 0 to 1% of TiO, and 0 to 2% of ZrO. A value of X is 30000 or more. The value of X is calculated based on the formula, X=SiO×329+AlO×786+BO×627+PO×(−941)+LiO×927+NaO×47.5+KO×(−371)+MgO×1230+CaO×1154+SrO×733+ZrO×51.8, by using the contents in mole percentage on an oxide basis of components. 1. A glass for chemical strengthening , comprising , in mole percentage on an oxide basis , 54 to 62% of SiO , 12 to 20% of AlO , 0.5 to 5% of BO , 0 to 4% of PO , 5 to 16% of LiO , 5 to 14% of NaO , 0 to 2% of KO , 0 to 10% of MgO , 0 to 1% of CaO , 0 to 1% of SrO , 0 to 1% of BaO , 0 to 5% of ZnO , 0 to 1% of TiO , and 0 to 4% of ZrO ,{'sub': 2', '2', '3', '2', '3', '2', '5', '2', '2', '2', '2, 'claim-text': {'br': None, 'sub': 2', '2', '3', '2', '3', '2', '5', '2', '2', '2', '2, 'X=SiO×329+AlO×786+BO×627+PO×(−941)+LiO×927+NaO×47.5+KO×(−371)+MgO×1230+CaO×1154+SrO×733+ZrO×51.8.'}, 'wherein a value of X is 40,000 or more, the value of X being calculated based on the following formula by using contents in mole percentage on an oxide basis of components of SiO, AlO, BO, PO, LiO, Na, KO, MgO, CaO, SrO, BaO, and ZrO2. The glass for chemical strengthening according to claim 1 , wherein a value of Y is 0.7 or more claim 1 , the value of Y being calculated based on the following formula by using contents in mole percentage on an oxide basis of components of SiO claim 1 , AlO claim 1 , BO claim 1 , PO claim 1 , LiO claim 1 , Na claim 1 , KO claim 1 , MgO claim 1 , CaO claim 1 , SrO claim 1 , BaO claim 1 , and ZrO:{'br': None, 'sub': 2', '2', '3', '2', '3', '2', '5', '2', '2', '2', '2, 'Y=SiO×0.00884+AlO×0.0120+BO×(−0.00373)+PO×0.000681+LiO×0.007 35+NaO×(−0.00234)+KO×(−0.00608)+MgO×0.0105+CaO×0.00789+SrO×0.00752+ ...

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ZIRCON COMPATIBLE, ION EXCHANGEABLE GLASS WITH HIGH DAMAGE RESISTANCE

An ion exchangeable glass having a high degree of resistance to damage caused by abrasion, scratching, indentation, and the like. The glass comprises alumina, BO, and alkali metal oxides, and contains boron cations having three-fold coordination. The glass, when ion exchanged, has a Vickers crack initiation threshold of at least 10 kilogram force (kgf). 1. A glass comprising:{'sub': '2', '66-74 mol % SiO;'}{'sub': '2', '9-20 mol % NaO;'}{'sub': 2', '3, '9-22 mol % AlO;'}{'sub': 2', '3, 'at least 2.7 mol % BO;'}at least 0.1 mol % MgO,{'sub': 2', '2', '3', '2', '3, 'wherein RO (mol %)+CaO (mol %)+SrO (mol %)+BaO (mol %)−AlO(mol %)−BO(mol %)<0 mol %.'}2. The glass of claim 1 , wherein the glass has a zirconia breakdown temperature that is equal to the temperature at which the glass has a viscosity in a range from about 30 kPoise to about 40 kPoise.3. The glass of claim 1 , wherein the glass comprises:{'sub': '2', 'from about 10 mol % to about 20 mol % NaO;'}{'sub': '2', 'from 0 mol % to about 5 mol % KO;'}0.1 mol %≦MgO≦6 mol %;0 mol %≦ZnO≦6 mol %; and0 mol %≦CaO (mol %)+SrO (mol %)+BaO (mol %)≦2 mol %.4. The glass of claim 1 , wherein the glass contains less than about one inclusion per kilogram of glass claim 1 , the inclusion having a diameter of at least 50 μm.5. The glass of claim 1 , wherein BO(mol %)−(RO (mol %)−AlO(mol %))≦4.5 mol %.6. The glass of claim 1 , wherein the glass comprises at least about 10 mol % RO.7. The glass of claim 1 , wherein the glass is substantially free of LiO.8. The glass of claim 1 , wherein BO(mol %)−(RO (mol %)−AlO(mol %))≧3 mol %.9. The glass of claim 1 , wherein the glass comprises at least one of CaO claim 1 , BaO claim 1 , and SrO.10. The glass of claim 1 , wherein 3 mol %≦BO(mol %)−(RO (mol %)−AlO(mol %))≦4.5 mol %.11. The glass of claim 1 , wherein the glass comprises 3-4.5 mol % BO.12. The glass of claim 1 , wherein the glass comprises 2.7-4.5 mol % BO.13. The glass of claim 1 , wherein the glass comprises 3-10 mol % BO.14. The ...

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Glass article and light guide

To provide a highly transmissive glass and a light guide that allow high internal transmittance of plate glass to be maintained and the internal transmittance spectrum of the plate to be flattened without lowering the redox of iron to a value equal to or more than a certain value. This glass article comprises a glass which includes 1 to 80 mass ppm of total iron oxide (t-Fe 2 O 3 ) in terms of Fe 2 O 3 , has a redox of iron of 0 to 50% and includes 0.01 to 4.0 mass ppm of NiO. The glass article and the light guide comprising the glass article are characterized in that an A value of the internal transmittance spectrum flatness is 0.83 or more.

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Textured glass articles and methods of making the same

A textured glass article that includes: a glass substrate comprising a thickness, a primary surface and a bulk composition at the midpoint of the thickness; and a textured region defined by the primary surface and comprising a textured region composition. The textured region comprises a sparkle of 2% or less. Further, the bulk composition comprises about 40 mol % to 80 mol % silica and the textured region composition comprises at least about 40 mol % silica.

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Lithium Containing Glass with High Oxidized Iron Content and Method of Making Same

A low infrared absorbing lithium glass includes FeO in the range of 0.0005-0.015 wt %, more preferably 0.001-0.010 wt %, and a redox ratio in the range of 0.005-0.15, more preferably in the range of 0.005-010. The glass can be chemically tempered and used to provide a ballistic viewing cover for night vision goggles or scope. A method is provided to change a glass making process from making a high infrared absorbing lithium glass having FeO in the range of 0.02 to 0.04 wt % and a redox ratio in the range of 0.2 to 0.4 to the low infrared absorbing lithium glass by adding additional oxidizers to the batch materials. A second method is provided to change a glass making process from making a low infrared absorbing lithium glass to the high infrared absorbing lithium glass by adding additional reducers to the batch material. In one embodiment of the invention the oxidizer is CeO. An embodiment of the invention covers a glass made according to the method. 1. (canceled)3. The glass composition according to claim 2 , wherein glass composition comprises cerium oxide in the range of 0.02 to 0.45 wt %.4. The glass composition according to claim 2 , comprising FeO in the range of from 0.001-0.010 wt %.5. The glass composition according to claim 2 , wherein the redox ratio is in the range of from 0.005-0.10.6. A viewing window for infrared equipment comprising glass formed from the glass composition according to .7. The viewing window of claim 6 , wherein the infrared equipment comprises infrared night goggles and/or scopes.8. A device for viewing radiated infrared energy claim 2 , the device comprising a housing having at least one passageway claim 2 , the passageway having a first open end and a second open end claim 2 , a lens system for viewing radiated infrared energy claim 2 , a chemically tempered ballistic glass lens mounted adjacent to one end of the passageway claim 2 , the ballistic glass lens comprising a first surface claim 2 , an opposite second surface and a ...

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Method for manufacturing disk-shaped glass blank and method for manufacturing glass substrate for magnetic disk

A glass blank is cut out from a glass plate by forming a crack starting portion inside the glass plate by moving a first laser beam relative to the glass plate such that a focal position of the laser beam is located in an inner portion of the glass plate in its thickness direction and the focal position forms a circle when viewed from a surface of the glass plate, then causing cracks to develop from the crack starting portion toward main surfaces of the glass plate, and splitting the glass plate to separate, from the glass plate, a glass blank that includes a separation surface having an arithmetic average surface roughness Ra smaller than 0.01 μm and a roundness not larger than 15 μm. Thereafter, main surfaces of the glass blank are ground or polished.

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GLASS ARTICLE AND PRODUCTION METHOD FOR GLASS ARTICLE

The glass article has a three-dimensional shape. The glass article contains a first surface and at least one second surface opposite to the first surface, and contains a bent part in at least one place of the first surface or the second surface. 1. A glass article having a three-dimensional shape , comprising a first surface and at least one second surface opposite to the first surface , and comprising a bent part in at least one place of the first surface or the second surface.2. The glass article according to claim 1 , wherein the first surface and the second surface each have a bent part in at least one place thereof.3. The glass article according to claim 1 , further comprising at least one edge surface connecting the first surface and the second surface claim 1 ,wherein the edge surface has an outline of a three-dimensional curve.4. The glass article according to claim 1 , wherein the bent part contains at least one site having an average radius of curvature of 30 cm or less.5. The glass article according to claim 1 , wherein the bent part contains at least one site having a Gaussian curvature of not 0.6. The glass article according to claim 5 , wherein the Gaussian curvature is negative.7. The glass article according to claim 1 , which is mounted on a transportation device.8. The glass article according to claim 7 , which is used for an interior member of the transportation device.9. The glass article according to claim 1 , wherein at least a part of the first surface or the second surface of the glass article is supported by a support member.10. The glass article according to claim 9 , wherein at least one place of the bent part is supported by the support member facing the bent part.11. The glass article according to claim 9 , wherein the support member supports the bent part so that the bent part is movable.12. The glass article according to claim 9 , wherein the edge surface connecting the first surface and the second surface is composed of a bent part ...

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METHODS FOR REDUCING CHROMIUM OXIDATION STATE DURING PROCESSING OF GLASS COMPOSITIONS

Glass manufacturing methods disclosed herein include delivering a molten glass to a melting vessel, and melting the batch materials to produce a molten glass comprising less than about 20 ppm CrO. Glass articles produced by these methods are also disclosed herein. 1. A glass manufacturing method comprising:{'sub': '3', 'melting batch materials in a melting vessel to produce a molten glass, the molten glass comprising less than about 20 ppm of CrO;'}{'sub': '3', 'wherein CrOcontent in the molten glass is reduced by controlling at least one of the makeup of the batch materials or the conditions in the melting vessel to reduce the oxidation state of chromium present in the batch materials.'}2. The method of claim 1 , wherein the oxidation state is reduced from Cr to Cr.3. The method of claim 1 , wherein a first ratio Cr/Cr of the batch materials is greater than a second ratio Cr/Cr of the molten glass article.4. The method of claim 3 , wherein the second ratio Cr/Cr of the molten glass is less than 1.5. The method of claim 1 , wherein the molten glass comprises less than about 10 ppm of CrO.6. The method of claim 1 , wherein the molten glass comprises less than about 1 ppm of CrO.7. The method of claim 1 , wherein controlling the makeup of the batch materials comprises selecting the glass composition to provide batch materials comprising an optical basicity of less than about 0.6.8. The method of claim 1 , wherein controlling the makeup of the batch materials comprises including at least one organic reducing agent in the batch materials.9. The method of claim 8 , wherein the at least one organic reducing agent is chosen from fatty acids and salts thereof.10. The method of claim 1 , wherein controlling the melting conditions comprises at least one of:(a) maintaining a pre-melt bath target temperature with a temperature fluctuation of +/−10° C.; or(b) maintaining an atmosphere within the melting vessel comprising an ideal gas/oxygen stoichiometric ratio with ...

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WATER-CONTAINING GLASS-BASED ARTICLES WITH HIGH INDENTATION CRACKING THRESHOLD

Glass-based articles that include a hydrogen-containing layer extending from the surface of the article to a depth of layer. The hydrogen-containing layer includes a hydrogen concentration that decreases from a maximum hydrogen concentration to the depth of layer. The glass-based articles exhibit a high Vickers indentation cracking threshold. Glass compositions that are selected to promote the formation of the hydrogen-containing layer and methods of forming the glass-based article are also provided. 1. A glass-based article , comprising:{'sub': '2', 'SiO;'}{'sub': 2', '3, 'AlO;'}{'sub': 2', '5, 'greater than or equal to 4 mol % to less than or equal to 15 mol % PO;'}{'sub': '2', 'one or more alkali metal oxides having alkali metal ions with an ionic radius of 0.133 nm or larger, wherein the one or more alkali metal oxides comprise greater than or equal to 6 mol % to less than or equal to 25 mol % KO; and'}a hydrogen-containing layer extending from a surface of the glass-based article to a depth of layer,wherein monovalent hydrogen species in the hydrogen-containing layer substitute for a portion of the alkali metal ions with an ionic radius of 0.133 nm or larger such that a hydrogen concentration of the hydrogen-containing layer decreases from a maximum hydrogen concentration to the depth of layer, andwherein the depth of layer is greater than 5 μm.2. The glass-based article of claim 1 , wherein the glass-based article has a Vicker's crack initiation threshold of at least 1 kgf.3. The glass-based article of claim 1 , wherein the depth of layer is at least about 10 μm.4. The glass-based article of claim 1 , wherein the maximum hydrogen concentration is located at the surface of the glass-based article.5. The glass-based article of claim 1 , further comprising at least one of LiO claim 1 , NaO claim 1 , CsO claim 1 , and RbO.6. The glass-based article of claim 1 , wherein the center of the glass-based article comprises:{'sub': '2', 'greater than or equal to 45 mol % ...

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Ultrathin glass with high impact resistance

An ultrathin chemically toughened and subsequently etched glass article is provided. The article has a thickness of less than or equal to 0.4 mm and a breakage height (given in mm) of more than 200 multiplied by the thickness (t given in mm)). Further, the article has a breakage bending radius (given in mm) of less than 100000 multiplied by the thickness (t given in mm) and divided by a surface compressive stress (in MPa) measured at a first surface.

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Ion-exchanged glass of high surface compression and shallow depth of layer with high resistance to radial crack formation from vickers indentation

Disclosed are alkali aluminosilicate glasses having unexpected resistance to indentation cracking. The glasses obtain this high resistance as a result of a high level of surface compression accompanied by a shallow depth of layer. The advantaged glasses show greater resistance to radial crack formation from Vickers indentation than glasses with the same compressive stress, but higher depths of layer.

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Ion exchangeable high damage resistance glasses

Embodiments of glass composition including at least about 65 mol % SiO 2 , Al 2 O 3 in the range from about 7 mol % to about 11 mol %, Na 2 O in the range from about 13 mol % to about 16 mol %; and a non-zero amount of one or more alkali earth metal oxides selected from MgO, CaO and ZnO, wherein the sum of the alkali earth metal oxides is up to about 6 mol %, are disclosed. The glass compositions can be processed using fusion forming processes and float forming processes and are ion exchangeable. Glass articles including such glass compositions and methods of forming such glass articles are also disclosed. The glass articles of one or more embodiments exhibit a Vickers indentation crack initiation load of at least 8 kgf.

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FILLER POWDER AND METHOD FOR MANUFACTURING SAME

Provided is a filler powder that has a lower coefficient of thermal expansion than silica powder and is less likely to cause quality and color alteration of a resin when blended into the resin. The filler powder is made of a crystallized glass in which β-quartz solid solution and/or β-eucryptite is precipitated. The filler powder preferably has an average particle size Dof 5 μm or less. The filler powder preferably has a coefficient of thermal expansion of 5×10/° C. or less in a range of 30 to 150° C. 1. A filler powder made of a crystallized glass in which β-quartz solid solution and/or β-eucryptite is precipitated.2. The filler powder according to claim 1 , having an average particle size Dof 5 μm or less.3. The filler powder according to claim 1 , having a coefficient of thermal expansion of 5×10/° C. or less in a range of 30 to 150° C.4. The filler powder according to claim 1 , being made of a crystallized glass containing claim 1 , in % by mass claim 1 , 55 to 75% SiO claim 1 , 15 to 30% AlO claim 1 , 2 to 10% LiO claim 1 , 0 to 3% NaO claim 1 , 0 to 3% KO claim 1 , 0 to 5% MgO claim 1 , 0 to 10% ZnO claim 1 , 0 to 5% BaO claim 1 , 0 to 5% TiO claim 1 , 0 to 4% ZrO claim 1 , 0 to 5% PO claim 1 , and 0 to 2.5% SnO.5. The filler powder according to claim 1 , having an approximately spherical shape or an approximately columnar shape.6. The filler powder according to claim 1 , being used to be blended into a resin.7. A resin composition containing the filler powder according to and a resin.8. A method for manufacturing a filler powder claim 1 , the method comprising the step of heating a crystallizable glass powder at a crystallization onset temperature or higher to precipitate β-quartz solid solution and/or β-eucryptite claim 1 , wherein a rate of temperature rise from below the crystallization onset temperature to the crystallization onset temperature or higher is not less than 25° C./min.9. The method for manufacturing a filler powder according to claim 8 , ...

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MULTICOLORED PHOTOSENSITIVE GLASS-BASED PARTS AND METHODS OF MANUFACTURE

Multicolored glass-based articles and methods of manufacture are disclosed. The method includes forming a glass-based part and exposing a first region to radiation and a second region to radiation such that the first and second regions have different sized metallic nanoparticles, resulting in a multicolored glass article. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. (canceled)9. (canceled)10. (canceled)11. (canceled)12. (canceled)13. (canceled)14. (canceled)15. (canceled)16. A method , comprising:irradiating a first region of a glass-based substrate with an ultra-violet source to form an irradiated glass-based substrate comprising metallic nanoparticle nuclei in the first region; andheat treating the irradiated glass-based substrate to form a heat treated glass-based substrate comprising metallic nanoparticles of a component in the first region;wherein the heat treated glass-based substrate comprises a second region containing metallic nanoparticles of the component with a second average particle diameter that is different than the first average particle diameter.17. The method of claim 16 , further comprising disposing a mask between the glass-based substrate and the ultra-violet source prior to irradiating the glass-based source.18. The method of claim 17 , wherein the mask is ink jet printed.19. The method of claim 17 , wherein the mask reduces the intensity of the irradiation with the ultra-violet source at the second region relative to the first region.20. The method of claim 17 , further comprising removing the mask after irradiating the glass-based substrate.21. The method of claim 16 , wherein the component is selected from the group consisting of Au claim 16 , Ag claim 16 , and Cu.22. The method of claim 16 , wherein the glass-based substrate further comprises a photosensitizer.23. The method of claim 16 , wherein the glass-based substrate further comprises CeO.24. The method of claim 16 , further comprising ...

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TOUGHENED GLASS SUBSTRATE AND MANUFACTURING PROCESS THEREFOR

An object is to devise a tempered glass substrate that has high mechanical strength and hardly undergoes breakage even though having a large size. A tempered glass substrate has a compressive stress layer in a surface thereof, and includes 1 piece/cmor less of devitrified stones containing Zr. 1. A tempered glass substrate having a compressive stress layer in a surface thereof , the tempered glass substrate comprising 1 piece/cmor less of devitrified stones containing Zr.2. The tempered glass substrate according to claim 1 , wherein the tempered glass substrate has the compressive stress layer in a surface of a glass substrate formed by an overflow down-draw method.3. A tempered glass substrate claim 1 , having a value of (a content of Zr in a center portion in a thickness direction)/(a content of Zr near a surface) of 3 or less.4. The tempered glass substrate according to claim 1 , wherein the compressive stress layer is formed by chemical treatment.5. The tempered glass substrate according to claim 1 , wherein the tempered glass substrate has a compressive stress value in a surface of 300 MPa or more claim 1 , a depth of layer of 10 μm or more claim 1 , and an internal tensile stress value of 200 MPa or less.6. The tempered glass substrate according to claim 1 , wherein the tempered glass substrate has an unpolished surface.7. The tempered glass substrate according to claim 1 , wherein the tempered glass comprises as a glass composition claim 1 , in terms of mass % claim 1 , 40 to 71% of Sio claim 1 , 3 to 30% of AlO claim 1 , 0 to 3.5% of LiO claim 1 , 7 to 20% of NaO claim 1 , and 0 to 15% of KO.8. The tempered glass substrate according to claim 1 , wherein the tempered glass comprises as a glass composition claim 1 , in terms of mass % claim 1 , 40 to 71% of SiO claim 1 , 7.5 to 30% of AlO claim 1 , 0 to 2% of LiO claim 1 , 10 to 19% of NaO claim 1 , 0 to 15% of KO claim 1 , 0 to 6% of MgO claim 1 , 0 to 6% of CaO claim 1 , 0 to 3% of SrO claim 1 , 0 to 3% of ...

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Glass, chemically strengthened glass, and cover glass

The present invention relates to a glass including, in mole percentage on an oxide basis: 60-75% of SiO2; 8-20% of Al2O3; 5-16% of Li2O; and 2-15% of one or more kinds of Na2O and K2O in total, in which a ratio PLi of the content of Li2O to a total content of Li2O, Na2O, and K2O is 0.40 or more, and a total content of MgO, CaO, SrO, BaO, and ZnO is 0-10%.

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Ion exchangeable li-containing glass compositions for 3-d forming

According to one embodiment, a glass article may include SiO 2 , Al 2 O 3 , Li 2 O and Na 2 O. The glass article may have a softening point less than or equal to about 810° C. The glass article may also have a high temperature CTE less than or equal to about 27×10 −6 /° C. The glass article may also be ion exchangeable such that the glass has a compressive stress greater than or equal to about 600 MPa and a depth of layer greater than or equal to about 25 μm after ion exchange in a salt bath comprising KNO 3 at a temperature in a range from about 390° C. to about 450° C. for less than or equal to approximately 15 hours.

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Cover glass and display device

A cover glass for covering a display panel of a display device, includes a front surface not to be faced to the display panel, a back surface to be faced the display panel, a front-side chamfered part which is a chamfered part on the side of the front surface, and a back-side chamfered part which is a chamfered part on the side of the back surface. The front-side chamfered part has a surface roughness Ra of more than 100 nm. The back-side chamfered part has a surface roughness Ra of 100 nm or less.

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LITHIUM SILICATE GLASS CERAMIC AND LITHIUM SILICATE GLASS COMPRISING A PENTAVALENT METAL OXIDE

Lithium silicate glass ceramics and glasses containing specific oxides of pentavalent elements are described which crystallize at low temperatures and are suitable in particular as dental materials. 1. Lithium silicate glass ceramic which comprises a pentavalent metal oxide selected from NbO , TaOand mixtures thereof and comprises less than 2.0 wt.-% KO.2. Glass ceramic according to claim 1 , wherein lithium silicate glass ceramic is excluded which comprises at least 6.1 wt.-% ZrO.3. Glass ceramic according to claim 1 , wherein glass ceramic is excluded which comprises at least 8.5 wt.-% transition metal oxide selected from the group consisting of oxides of yttrium claim 1 , oxides of transition metals with an atomic number from 41 to 79 and mixtures of these oxides.4. Glass ceramic according to claim 1 , which comprises less than 1.0 wt.-% KO.5. Glass ceramic according to claim 1 , which comprises less than 1.0 wt.-% NaO.6. Glass ceramic according to claim 1 , which comprises at least 2.0 wt.-% NbOor TaO.7. Glass ceramic according to claim 1 , which comprises less than 0.1 wt.-% LaO.8. Glass ceramic according to claim 1 , which comprises the pentavalent metal oxide or mixtures thereof in an amount of from 0.1 to 8.2 wt.-%.9. Glass ceramic according to claim 1 , which has lithium metasilicate as main crystal phase.10. Glass ceramic according to claim 1 , which has lithium disilicate as main crystal phase.11. Glass ceramic according to claim 1 , which comprises 60.0 to 85.0 wt.-% SiO.12. Glass ceramic according to claim 1 , which comprises 11.0 to 21.0 wt.-% LiO.13. Glass ceramic according to claim 1 , which comprises 0 to 10.0 wt.-% PO.15. Lithium silicate glass ceramic according to claim 1 , which has lithium disilicate as main crystal phase and a fracture toughness claim 1 , measured as Kvalue claim 1 , of at least 1.6 MPa·m.16. Lithium silicate glass ceramic according to claim 1 , which comprises SiOand LiO in a molar ratio of from 1.7 to 3.1.17. Lithium silicate ...

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GLASS FOR AUTONOMOUS CAR

The invention concerns an automotive glazing comprising (i) at least one glass sheet having an absorption coefficient lower than 5 min the wavelength range from 1051 nm to 1650 nm and having an external face and an internal face, and (ii) an infrared filter. According to the present invention, an infrared-based remote sensing device in the wavelength range from 1051nm to 1650 nm, is placed on the internal face of the glass sheet in a zone free of the infrared filter layer. 1. A glazing comprising:{'sup': '−1', 'at least one glass sheet having an absorption coefficient lower than 5 min the wavelength range from 1051 nm to 1650 nm and having an external face and an internal face, and'}an infrared filter,wherein an infrared-based remote sensing device in the wavelength range from 1051 nm to 1650 nm, is placed on the internal face of the glass sheet in a zone free of the infrared filter layer.2. The glazing according to wherein the at least one glass sheet has an absorption coefficient lower than 1 m.3. The glazing according to claim 1 , wherein the infrared-based remote sensing device is optically coupled to the internal face of the glazing.44. The glazing according to claim 1 , wherein the glazing is a laminated glazing comprising an exterior and an interior glass sheets laminated with at least one thermoplastic interlayer and wherein the exterior and an interior glass sheets are high level of near infrared radiation transmission glass sheets having an absorption coefficient lower than 5 mand wherein the infrared-based remote sensing device is placed on face .5. The glazing according to claim 1 , having a value of light transmission that is lower than its value of near infrared transmission.6. The glazing according to claim 1 , wherein at least one glass sheet is covered with at least one near-infrared transparent coating that absorbs and/or reflects the visible light.7. The glazing according to claim 1 , wherein the at least one glass sheet comprises a content claim ...

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THIN FILM BATTERY HAVING LOW FLUID CONTENT AND AN INCREASED SERVICE LIFE

A thin film battery is provided that has an increased service life and low fluid content. The fluid content is at most 2000 ppm, preferably at most 500 ppm, particularly preferably at most 200 ppm, and most preferably at most 50 ppm. An inorganic, silicon-containing, in particular silicate, substantially fluid-free material for thin film batteries are provided, as well as methods for producing such thin film batteries. 1. A thin film battery , comprising: a cycle stability of at least 5,000 cycles, one cycle comprising one discharging and one charging process of the thin film battery, and cycle stability being the number of cycles that can at least be performed without causing failure of the thin film battery, wherein the failure is defined as electrical energy no longer being capable of being stored in or drawn from the battery,', 'a storage stability under normal atmosphere of at least one year without causing failure of the thin film battery,', 'a continuous operation durability of at least 5,000 hours, the continuous operation durability being the time during which electrical energy is actively drawn from or supplied to the battery, and', 'combinations thereof;, 'a service life, wherein the service life is a feature selected from the group consisting of{'sub': 2', '2', '2', '2, 'a fluid content of 2000 ppm or less based on a weight of the thin film battery, wherein the fluid content refers to liquid and/or gaseous substances and their chemical and physical adsorbates and/or their derivatives, wherein the fluids comprise HO, O, N, CO, and hydrogen halides and their chemical and physical adsorbates and non-volatile lithium compounds; and'}{'sub': 2', '2, 'at least one element made of an inorganic, silicon-containing, material that has an HO content of less than 2 wt %, wherein fluid substances that are bound within a chemical structure of the inorganic, silicon-containing, material are included in the HO content.'}2. The thin film battery as claimed in claim 1 , ...

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ELECTRICAL STORAGE SYSTEM WITH A SHEET-LIKE DISCRETE ELEMENT, SHEET-LIKE DISCRETE ELEMENT, METHOD FOR PRODUCING SAME, AND USE THEREOF

An electrical storage system is provided that has a thickness of less than 2 mm and includes comprises at least one sheet-like discrete element. At least one surface of the at least one sheet-like discrete element is designed to be chemically reactive to a reduced degree, inert, and/or permeable to a reduced degree, and/or impermeable with respect to materials coming into contact with the surface. Also provided are a sheet-like discrete element and to the production and use thereof. 2. The electrical storage system as claimed in claim 1 , wherein the glass further comprises from 0 to 1 wt % of refining agents selected from the group consisting of SnO claim 1 , CeO claim 1 , AsO claim 1 , Cl claim 1 , F claim 1 , and sulfates.3. The electrical storage system as claimed in claim 1 , wherein the barrier layer comprises a vertical composition variation of the surface so as to provide no direct diffusion paths into the sheet-like discrete element.4. The electrical storage system as claimed in claim 3 , wherein the vertical composition variation comprises getter materials for alkali and/or alkaline earth metals.5. The electrical storage system as claimed in claim 3 , wherein the vertical composition variation comprises a sequence of at least adjacent layers having a different composition.6. The electrical storage system as claimed in claim 1 , wherein the barrier layer is a plasma-assisted coating or an atomic layer deposition (ALD) coating.7. The electrical storage system as claimed in claim 1 , wherein the barrier layer has a barrier effect initiated by a separate annealing step prior to application of a current conductor or an anode.8. The electrical storage system as claimed in claim 1 , wherein the barrier layer has a barrier effect initiated during annealing of an anode.9. The electrical storage system as claimed in claim 1 , wherein the sheet-like discrete element comprises a substrate having a transmittance selected from the group consisting of: 0.1% or more in a ...

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Lithium Containing Glass with High Oxidized Iron Content and Method of Making Same

A low infrared absorbing lithium glass includes FeO in the range of 0.0005-0.015 wt %, more preferably 0.001-0.010 wt %, and a redox ratio in the range of 0.005-0.15, more preferably in the range of 0.005-010. The glass can be chemically tempered and used to provide a ballistic viewing cover for night vision goggles or scope. A method is provided to change a glass making process from making a high infrared absorbing lithium glass having FeO in the range of 0.02 to 0.04 wt % and a redox ratio in the range of 0.2 to 0.4 to the low infrared absorbing lithium glass by adding additional oxidizers to the batch materials. A second method is provided to change a glass making process from making a low infrared absorbing lithium glass to the high infrared absorbing lithium glass by adding additional reducers to the batch material. In one embodiment of the invention the oxidizer is CeO. An embodiment of the invention covers a glass made according to the method. 1. A method of changing molten glass in a furnace from a molten high infrared absorbing lithium glass composition having FeO in the range of 0.02 to 0.04 wt % and a redox ratio in the range of 0.2 to 0.4 to a molten low infrared absorbing lithium glass composition having FeO in the range of 0.0005 to 0.015 wt % , a redox ratio in the range of 0.005 to 0.10 , comprising:feeding high infrared absorbing glass batch material and a predetermined amount of a first oxidizer to oxidize the FeO to provide the molten low infrared absorbing lithium glass composition; andceasing the practice of the preceding step after a predetermined period of time.2. The method of claim 1 , wherein the first and the second oxidizers are selected from the group of CeOand MnOand mixtures thereof.3. The method of claim 2 , wherein the first and the second oxidizers are each CeO.4. The method of claim 2 , wherein the first and the second oxidizers are each MnO.5. The method according to claim 1 , wherein after the step of feeding the glass batch ...

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Crystallized glass housing

To provide a crystallized glass housing excellent in properties suitable for a housing for an electronic device, such as shielding properties, high strength and production cost. A crystallized glass housing made of crystallized glass, said crystallized glass having a diffused transmittance of 15% or less in the entire light wavelength region of from 380 nm to 780 nm, as measured by using an integrated sphere.

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Method for manufacturing glass substrate, method for manufacturing magnetic disk, and polishing liquid composition for glass substrate

The present invention provides a method for manufacturing a glass substrate for a magnetic disk or the like according to which surface roughnesses of main surfaces of a glass substrate can be reduced more than with currently available methods. In the present invention, by mirror-polishing (final finishing-polishing) the main surfaces of the glass substrate used in a magnetic disk, for example, using a polishing liquid containing organic-based particles made of a styrene-based resin, an acrylic resin, or a urethane-based resin, as polishing abrasive particles, surface roughnesses of the main surfaces of the substrate can be reduced more than with currently available methods.

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COVER GLASS LAMINATION STRUCTURE AND MANUFACTURING METHOD THEREOF

A cover glass lamination structure includes: a glass substrate having opposed first and second surfaces; an ultraviolet (UV) textured layer disposed on the first surface; and a coating layer disposed on the UV textured layer, wherein an inner edge of the coating layer extends beyond an inner edge of the UV textured layer and is attached to the first surface. 1. A cover glass lamination structure , comprising:a glass substrate having opposed first and second surfaces;an ultraviolet (UV) textured layer disposed on the first surface; anda coating layer disposed on the UV textured layer, wherein an inner edge of the coating layer extends beyond an inner edge of the UV textured layer and is attached to the first surface.2. The cover glass lamination structure according to claim 1 , wherein the number of the coating layer is single or plural claim 1 , and the coating layer is made of at least one selected from the group consisting of alumina oxide claim 1 , niobium oxide layer claim 1 , titanium oxide claim 1 , vanadium oxide claim 1 , tungsten oxide claim 1 , silicon oxide claim 1 , and silicon nitride.3. The cover glass lamination structure according to claim 1 , further comprising a base cover ink layer disposed on the coating layer.4. The cover glass lamination structure according to claim 3 , wherein an inner edge of the base cover ink layer and an inner edge of the coating layer are coplanar claim 3 , and the glass substrate is divided into a visible region and a peripheral region by inner edges of the base cover ink layer and the coating layer.5. The cover glass lamination structure according to claim 1 , wherein the second surface is provided with at least one of an anti-reflection film claim 1 , an anti-fingerprint film claim 1 , and a hardened film.6. The cover glass lamination structure according to claim 1 , wherein the UV textured layer comprises a plurality of protrusions claim 1 , the protrusion has a height of about 5 μm to about 200 μm claim 1 , and a ...

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Cover Glass for Mobile Terminals, Manufacturing Method of the Same and Mobile Terminal Device

To provide cover glass for mobile terminals exhibiting high strength in a thin plate thickness state to enable reductions in thickness of apparatuses when inserted in the apparatuses, cover glass ( 1 ) for a mobile terminal of the invention is cover glass ( 1 ) that is obtained by forming a resist pattern on main surfaces of a plate-shaped glass substrate, then etching the glass substrate with an etchant using the resist pattern as a mask, and thereby cutting the glass substrate into a desired shape and that protects a display screen of the mobile terminal, where an edge face of the cover glass ( 1 ) is formed of a molten glass surface, and as surface roughness of the edge face, arithmetic mean roughness Ra is 10 nm or less.

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ION EXCHANGEABLE ALKALI ALUMINOSILICATE GLASS COMPOSITIONS HAVING IMPROVED MECHANICAL DURABILITY

A glass composition comprises: 50.0 mol % to 70.0 mol % SiO; 10.0 mol % to 25.0 mol % AlO; 0.0 mol % to 5.0 mol % PO; 0.0 mol % to 10.0 mol % BO; 5.0 mol % to 15.0 mol % LiO; 1.0 mol % to 15.0 mol % NaO; and 0.0 mol % to 1.0 mol % KO. The sum of all alkali oxides, RO, present in the glass composition may be in the range from greater than or equal to 11.0 mol % to less than or equal to 23.0 mol %. The sum of AlOand RO present in the glass composition may be in the range from greater than or equal to 26.0 mol % to less than or equal to 40.0 mol %. The glass composition may satisfy the relationship −0.1≤(AlO—(RO+RO))/LiO≤0.3. 1. A glass-based article comprising:a composition comprising a lithium-based aluminosilicate; a failure height of greater than or equal to 100 cm as measured according to a Drop Test Method on 180 grit sandpaper; and', 'a Knoop Scratch threshold of greater than or equal to 6.0 N and less than or equal to 12.0 N., 'first and second opposing surfaces defining a thickness (t) of the glass-based article, wherein the thickness of the glass-based article is greater than or equal to 100 μm and less than or equal to 1000 μm;'}2. The glass-based article of claim 1 , wherein the thickness of the glass-based article is greater than or equal to 400 μm and less than or equal to 800 μm.3. The glass-based article of claim 1 , wherein the thickness of the glass-based article is greater than or equal to 400 μm and less than or equal to 700 μm.4. The glass-based article of claim 1 , wherein the failure height of greater than or equal to 150 cm as measured according to a Drop Test Method on 180 grit sandpaper.5. The glass-based article of claim 1 , wherein the failure height of greater than or equal to 180 cm as measured according to a Drop Test Method on 180 grit sandpaper.6. The glass-based article of claim 1 , wherein the glass-based article has a Knoop scratch threshold of greater than or equal to 6.0 N and less than or equal to 12.0 N.7. The glass-based article ...

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ION-EXCHANGEABLE MIXED ALKALI ALUMINOSILICATE GLASSES

A glass composition includes from 55.0 mol % to 75.0 mol % SiO; from 8.0 mol % to 20.0 mol % AlO; from 3.0 mol % to 15.0 mol % LiO; from 5.0 mol % to 15.0 mol % NaO; and less than or equal to 1.5 mol % KO. The glass composition has the following relationships: AlO+LiO is greater than 22.5 mol %, RO+RO is greater than or equal to 18.0 mol %, RO/AlOis greater than or equal to 1.06, SiO+AlO+BO+POis greater than or equal to 78.0 mol %, and (SiO+AlO+BO+PO)/LiO is greater than or equal to 8.0. The glass composition may be used in a glass article or a consumer electronic product. 1. A glass composition comprising:{'sub': '2', 'from greater than or equal to 55.0 mol % to less than or equal to 75.0 mol % SiO;'}{'sub': 2', '3, 'from greater than or equal to 13.0 mol % to less than or equal to 20.0 mol % AlO;'}{'sub': '2', 'from greater than or equal to 3.0 mol % to less than or equal to 10.0 mol % LiO;'}{'sub': '2', 'from greater than or equal to 5.0 mol % to less than or equal to 15.0 mol % NaO;'}{'sub': '2', 'less than or equal to 1.5 mol % KO; and'}{'sub': 2', '3, 'claim-text': [{'sub': 2', '3', '2, 'AlO+LiO is greater than or equal to 23.0 mol %,'}, {'sub': 2', '2, 'RO+RO is greater than or equal to 18.0 mol %, where RO is alkali oxides present in the glass composition and RO is divalent cation oxides present in the glass composition,'}, {'sub': 2', '2', '3, 'RO/AlOis greater than or equal to 1.06,'}, {'sub': 2', '2', '3', '2', '3', '2', '5, 'SiO+AlO+BO+POis greater than or equal to 78.0 mol %, and'}, {'sub': 2', '2', '3', '2', '3', '2', '5', '2, '(SiO+AlO+BO+PO)/LiO is greater than or equal to 8.0.'}], 'from greater than or equal to 0 mol % to less than or equal to 3.0 mol % BO, wherein2. (canceled)3. The glass composition of claim 1 , wherein AlO+LiO is from greater than or equal to 23.0 mol % to less than or equal to 26.5 mol %.4. (canceled)5. The glass composition of claim 1 , wherein RO+RO is from greater than or equal to 19.0 mol % to less than or equal to 22.0 mol ...

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ALKALI-ALUMINOSILICATE GLASS

The present disclosure relates to an alkali-aluminosilicate glass which contains between 47.5 and 55 wt.% SiO2, between 21 and 27.5% Al2O3; and between 12 and 16 wt.% Na2O. The molar ratio of Al2O3 and Na2O amounts to between 1:0.9 and 1:1.2. This glass is characterized by high hardness and high surface strengths after its chemical toughening, whereby the resulting extremely high scratch resistance favors its use as a display glass. A further preferred feature of this glass is its much lower viscosity for this group of glasses. 1. A glass , comprising between 47.5 and 55 wt. % SiO2; between 21 and 27.5 wt. % Al2O3; and between 12 and 16 wt. % Na2O; and in that a molar ratio of Al2O3 to Na2O lies between 0.9:1 and 1.2:1.2. The glass in accordance with claim 1 , wherein that it contains between 50 and 55 wt. % claim 1 , and preferably between 53 and 55 wt. % claim 1 , SiO2.3. The glass in accordance with claim 1 , wherein that it contains between 21 and 25 wt. % claim 1 , and preferably between 21.5 and 23.5 wt. % claim 1 , Al2O3.4. The glass in accordance with claim 1 , wherein that it contains between 13 and 16 wt. % claim 1 , and preferably between 13.8 and 15.6 wt. % claim 1 , Na2O.5. The glass in accordance with claim 1 , wherein that a molar ration of SiO2 to Al2O3 lies between 2.5:1 and 4.8:1 claim 1 , preferably between 3.5:1 and 4.5:1 claim 1 , and further preferably between 3.9:1 and 4.2:1.6. The glass in accordance with claim 1 , wherein that the molar ratio of Al2O3 to Na2O lies between 0.94:1 and 1.1:17. The glass in accordance with claim 1 , wherein the glass furthermore includes between 1.5 and 2.5 wt. % K2O and/or up to 1.5 wt. % Li2O.8. The glass in accordance with claim 1 , wherein the glass is free of CaO.9. The glass in accordance with claim 1 , wherein the glass includes between 4 and 10 wt. %.10. The glass in accordance with claim 1 , wherein the glass contains between >0 and 1 wt. % claim 1 , and SnO2; and/or in that it contains between >0 and 0 ...

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LOW VISCOSITY GLASSES AND METHODS AND SYSTEMS FOR MANUFACTURE

A glass article including any one or several of SiO, AlO, BO, LiO, SnOand a fusion line. The glass article can also include a liquidus viscosity less than or equal to 100 kP. In some embodiments, the glass article includes, on an oxide basis, from 60 mol % to 74 mol % SiO, from 7 mol % to 18 mol % AlO, from 3 mol % to 16 mol % BO, from 0 mol % to 6 mol % NaO, from 0 mol % to 5 mol % PO, from 5 mol % to 11 mol % LiO, less than or equal to 0.2 mol % SnO. 1. A glass article comprising SiO , AlO , BO , LiO , SnOand a fusion line.2. The glass article of further comprising NaO or PO.3. The glass article of further comprising claim 1 , on an oxide basis:{'sub': '2', 'from greater than or equal to 60 mol % to less than or equal to 74 mol % SiO;'}{'sub': 2', '3, 'from greater than or equal to 7 mol % to less than or equal to 18 mol % AlO;'}{'sub': 2', '3, 'from greater than or equal to 3 mol % to less than or equal to 16 mol % BO;'}{'sub': '2', 'from greater than 0 mol % to less than or equal to 6 mol % NaO;'}{'sub': 2', '5, 'from greater than or equal to 0 mol % to less than or equal to 5 mol % PO;'}{'sub': '2', 'from greater than or equal to 5 mol % to less than or equal to 11 mol % LiO; and'}{'sub': '2', 'less than or equal to 0.2 mol % SnO.'}4. The glass article of further comprising a molar ratio of AlO:(RO+RO) greater than or equal to 0.9 claim 1 , where RO is a sum of alkali metal oxides in mol % and RO is a sum of divalent cation oxides in mol %.5. The glass article of claim 1 , wherein the glass article has a liquidus viscosity of less than or equal to 300 kP.6. The glass article of claim 1 , wherein the glass article has a liquidus viscosity of less than or equal to 100 kP.7. The glass article of claim 1 , wherein the glass article has a liquidus viscosity of less than or equal to 50 kP.8. The glass article of claim 1 , wherein the glass article has a liquidus viscosity of less than or equal to 25 kP.9. The glass article of claim 1 , wherein the glass article is ...

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LAMINATED GLASS ARTICLE AND METHOD FOR FORMING THE SAME

A glass article includes a glass core layer and a glass cladding layer adjacent to the core layer. An average coefficient of thermal expansion (CTE) of the core layer is greater than an average CTE of the cladding layer. An effective 10P temperature of the glass article is at most about 750° C. 1. A glass article comprising:a glass core layer; anda glass cladding layer adjacent to the core layer and comprising a first cladding layer adjacent to a first major surface of the core layer and a second cladding layer adjacent to a second major surface of the core layer opposite the first major surface;{'sup': '9.9', 'wherein an average coefficient of thermal expansion (CTE) of the core layer is greater than an average CTE of each of the first cladding layer and the second cladding layer, and an effective 10P temperature of the glass article is at most about 750° C.'}2. (canceled)3. The glass article of claim 1 , wherein a degradation rate of the cladding layer in response to exposure to a 5 vol % aqueous HCl solution at 95° C. for 6 h is at most about 0.018 mg/cmor at most about 0.009 mg/cm.4. The glass article of claim 1 , wherein a degradation rate of the cladding layer in response to exposure to a 1 M aqueous HNOsolution at 95° C. for 24 h is at most about 0.08 mg/cmor at most about 0.06 mg/cm.5. The glass article of claim 1 , wherein a degradation rate of the cladding layer in response to exposure to a 0.02 N aqueous HSOsolution at 95° C. for 24 h is at most about 0.04 mg/cmor at most about 0.02 mg/cm.67-. (canceled)8. The glass article of claim 1 , wherein a ratio of a thickness of the core layer to a thickness of the glass article is at least about 0.7.9. The glass article of claim 1 , further comprising a thickness of about 0.2 mm to about 3 mm.10. (canceled)11. The glass article of claim 1 , wherein the effective 10P temperature of the glass article is at most about 725° C.12. The glass article of claim 1 , wherein the glass article is substantially free of a non- ...

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COVER GLASS

A cover glass includes: a glass substrate having a convex and concave shape formed on at least one of surfaces thereof by an antiglare treatment; and an antireflection film disposed on the surface of the glass substrate, the surface having the convex and concave shape. In the cover glass, a difference Δa* in a* value between any two points within a surface of the cover glass on the side where the antireflection film is present and a difference Δb* in b* value between any two points within the surface of the cover glass on the side where the antireflection film is present satisfy the following expression: √{(Δa*)+(Δb*)}≦4. 1. A cover glass comprising: a glass substrate having a convex and concave shape formed on at least one of surfaces thereof by an antiglare treatment; and an antireflection film disposed on the surface of the glass substrate , the surface having the convex and concave shape , wherein {'br': None, 'i': a', 'b, 'sup': 2', '2, '√{(Δ*)+(Δ*)}≦4\u2003\u2003(1)'}, 'a difference Δa* in a* value between any two points within a surface of the cover glass on the side where the antireflection film is present and a difference Δb* in b* value between any two points within the surface of the cover glass on the side where the antireflection film is present satisfy the following expression (1).'}2. The cover glass according to claim 1 , wherein the Δa* and the Δb* are determined by selecting any square portion of 10 cmas a measuring range from the glass substrate claim 1 , dividing the measuring range into 11×11 equal portions claim 1 , examining all 100 intersections of equally dividing lines for a* values and b* values claim 1 , determining a maximum value a*of the a* values claim 1 , a minimum value a*of the a* values claim 1 , a maximum value b*of the b* values claim 1 , and a minimum value b*of the b* values claim 1 , from the a* values and b* values claim 1 , and taking a difference (a*−a*) between the a*and the a*as the Δa* and a difference (b*−b*) between ...

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METHOD FOR HEATING MOLTEN GLASS AND GLASS ARTICLE

A glass article is designed at least in part in the form of a glass tube element including at least one shell which encloses at least one lumen. For at least one light transmission analysis of the glass article, a ratio of an average amplitude transmission factor and a specific amplitude transmission factor is greater than 1.00001. 1. A glass article , the glass article being designed at least in part in the form of a glass tube element comprising at least one shell which encloses at least one lumen , wherein for at least one light transmission analysis of the glass article , a ratio of an average amplitude transmission factor and a specific amplitude transmission factor is greater than 1.00001 , wherein for the light transmission analysis , an outer surface of the at least one shell is at least virtually divided into surface areas of equal shape and size , and an amplitude transmission factor of a light beam , which is emitted from a fixed light source towards a fixed detector along a beam path , is determined consecutively for every surface area in that the glass article and/or the surface area is positioned relative to the beam path such that the light beam propagates through a thickness of the at least one shell and crosses the respective surface area perpendicularly , wherein the amplitude transmission factors of all surface areas are arranged within a sorted list from small values to large values , wherein the specific amplitude transmission factor is the mean value of the first 1% of the amplitude transmission factors arranged in the sorted list , the smallest one being among the first 1% of the amplitude transmission factors , wherein the average amplitude transmission factor is the mean value of all amplitude transmission factors arranged in the sorted list , wherein the average amplitude transmission factor is larger than or equal to 0.99;wherein the amplitude transmission factor is the factor the amplitude of the light beam is attenuated between the light ...

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MANUFACTURING METHOD FOR CHEMICALLY STRENGTHENED GLASS

The present invention relates to a manufacturing method for a chemically strengthened glass, the method including: performing a first ion exchange by immersing a glass for chemical strengthening containing first alkali metal ions in a first molten salt composition containing second alkali metal ions; after the first ion exchange, performing a second ion exchange by immersing the chemically strengthened glass obtained after the first ion exchange in a second molten salt composition containing the first metal ions and third alkali metal ions; continuously using the first molten salt composition after being used for the first ion exchange; and continuously using a second molten salt composition after being used for the second ion exchange, in which: a concentration of the second molten salt composition is controlled by adding the first alkali metal ions to the second molten salt composition and a resulting second molten salt composition is used continuously. 1. A manufacturing method for a chemically strengthened glass , the method comprising:performing a first ion exchange by immersing a glass for chemical strengthening containing first alkali metal ions in a first molten salt composition containing second alkali metal ions having a larger ion radius than the first alkali metal ions;performing a second ion exchange, after the first ion exchange, by immersing the chemically strengthened glass obtained after the first ion exchange in a second molten salt composition containing the first metal ions and third alkali metal ions having a larger ion radius than the second alkali metal ions;continuously using the first molten salt composition after being used for the first ion exchange for a next first ion exchange; andcontinuously using the second molten salt composition after being used for the second ion exchange for a next second ion exchange,wherein:a concentration of the second molten salt composition is controlled by adding the first alkali metal ions to the second ...

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CHEMICALLY STRENGTHENED GLASS AND METHOD FOR MANUFACTURING CHEMICALLY STRENGTHENED GLASS

A chemically strengthened glass having a thickness t of 2 mm or less, having a compressive stress value (CS) at a portion of 90 μm deep from a glass surface being 25 MPa or more, and satisfying a number of fragments generated within a size of 25 mm×25 mm being 20 or less in a fracture test according to an indenter indentation test under a condition of holding a load ranging from 5 kgf to 10 kgf for 15 seconds with a pyramidal diamond indenter having an indenter angle of a facing angle of 60°. 114-. (canceled)15. A chemically strengthened glass having a thickness t of 2 mm or less ,{'sub': '90', 'having a compressive stress value (CS) at a portion of 90 μm deep from a glass surface being 25 MPa or more, and'}satisfying a number of fragments generated within a size of 25 mm×25 mm being 20 or less in a fracture test according to an indenter indentation test under a condition of holding a load ranging from 5 kgf to 10 kgf for 15 seconds with a pyramidal diamond indenter having an indenter angle of a facing angle of 60°,{'sub': 3', '3', '3', '3, 'wherein the chemically strengthened glass provides a depth of a compressive stress layer (DOL) being 50 pm or more when a glass sheet having a thickness of 1 mm which has a matrix composition of the chemically strengthened glass and has been gradually cooled from a temperature T° C., which is 30° C. to 50° C. higher than a glass transition temperature, to (T-300)° C. at 0.5° C./minute, is subjected to an ion exchange treatment for one hour with a molten salt at 400° C. composed of KNO, NaNO, or a mixed salt of KNOand NaNO, and'}{'sub': 2', '2', '3', '2', '5', '2', '2', '2', '2', '2, 'wherein the chemically strengthened glass has a matrix composition comprising, in terms of molar percentage on the basis of oxides, from 54 to 72% of SiO, from 7 to 20% of AlO, from 0 to 2% of PO, from 3 to 20% of LiO, from 3 to 14% of NaO, from 0 to 4% of KO, from 0 to 10% of MgO, from 0 to 3% of CaO, from 0 to 3% of SrO, from 0 to 3% of BaO, from ...

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TEMPERED GLASS AND GLASS FOR TEMPERING

A tempered glass having a compressive stress layer in a surface thereof, in which the tempered glass includes as a glass composition, in terms of mass o, 45% to 75% of SiO, 10% to 30% of AlO, 0% to 20% of BO, and 10% to 25% of NaO. 1. A tempered glass having a compressive stress layer in a surface thereof ,{'sub': 2', '2', '3', '2', '3', '2, 'wherein the tempered glass comprises as a glass composition, in terms of mass %, 45% to 75% of SiO, 10% to 30% of AlO, 0% to 20% of BO, and 10% to 25% of NaO.'}2. The tempered glass according to claim 1 , wherein the tempered glass has a bent portion and/or a curved portion.3. The tempered glass according to claim 2 , wherein the bent portion and/or the curved portion is formed through thermal processing.4. The tempered glass according to claim 3 , wherein the tempered glass is obtained through tempering treatment after the thermal processing.5. The tempered glass according to claim 3 , wherein an end surface of the tempered glass is subjected to grinding treatment and/or polishing treatment after the thermal processing and before tempering treatment.6. The tempered glass according to claim 1 , wherein the compressive stress layer has a compressive stress value CS of 500 MPa or more and a depth of layer DOL of 20 μm or more.7. The tempered glass according to claim 1 , wherein the tempered glass has a softening point of 800° C. or less.81. The tempered glass according to claim 1 , wherein the tempered glass has an annealing point of 600° C. or less.9. The tempered glass according to claim 1 , wherein the tempered glass has a strain point of 400° C. or more.10. The tempered glass according to claim 1 , wherein the tempered glass has a liquidus temperature of 1 claim 1 ,200° C. or less.11. The tempered glass according to claim 1 , wherein the tempered glass has a liquidus viscosity of 10dPa·s or more.12. The tempered glass according to claim 1 , wherein the tempered glass has a thermal expansion coefficient of 50×10/° C. to 110×10 ...

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SUBSTRATE FOR MAGNETIC DISK AND MAGNETIC DISK

The shape and number of surface defects are controlled so that the occurrence of failure is suppressed in an HDD device in which a magnetic head with a very small flying height, such as a DFH head, is mounted. 1. A magnetic disk glass substrate having a main surface , the magnetic disk glass substrate being used as a magnetic disk substrate adapted for a DFH (dynamic fly height) head ,wherein a surface roughness Ra is 0.15 nm or less when a 2 μm×2 μm square measurement area of the main surface is measured using an atomic force microscope with a resolution of 256×256 pixels, and{'sup': '2', 'wherein when laser light with a wavelength of 405 nm and a power of 25 mW is irradiated with a spot size of 5 μm onto the main surface of the substrate and scattered light from the main surface of the substrate is detected, the number of defects detected to have a size of 0.1 μm or more and 0.3 μm or less is less than 50 (0 exclusive) per 24 cmand, with respect to all the defects detected, there is no defect in which, in a bearing curve obtained by a bearing curve plot method using the atomic force microscope, a portion from an apex (height at 0%) of the defect to a height at 45% thereof is located in an area of defect height higher than a virtual line connecting between the apex (height at 0%) of the defect and a point of the height at 45%.'}2. The magnetic disk glass substrate according to claim 1 ,wherein, with respect to only one main surface, the surface roughness Ra is 0.15 nm or less when the 2 μm×2 μm square measurement area of the main surface is measured using the atomic force microscope with the resolution of 256×256 pixels, and{'sup': '2', 'wherein when the laser light with the wavelength of 405 nm and the power of 25 mW is irradiated with the spot size of 5 μm onto the main surface of the substrate and the scattered light from the main surface of the substrate is detected, the number of the defects detected to have the size of 0.1 μm or more and 0.3 μm or less is ...

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CHEMICALLY STRENGTHENED GLASS AND MANUFACTURING METHOD THEREOF

The present invention relates to a chemically strengthened glass having a thickness t (mm), in which a first-order derivative CS′ of a stress value CS(MPa) is −4.7 or larger in a range of CS≥0 in a profile of the stress value CS(MPa), in which the stress value CS(MPa) is a function of depth×(μm) from a glass surface, and in which the stress value CS(MPa) is measured by a scattered light photoelastic stress meter, and a manufacturing method thereof. 1. A chemically strengthened glass having a thickness t (mm) , wherein a first-order derivative CS′ of a stress value CS(MPa) is −4.7 or larger in a range of CS≥0 in a profile of the stress value CS(MPa) ,{'sub': 'x', 'wherein the stress value CS(MPa) is a function of depth×(μm) from a glass surface, and'}{'sub': 'x', 'wherein the stress value CS(MPa) is measured by a scattered light photoelastic stress meter.'}2. The chemically strengthened glass according to claim 1 , wherein in the profile of the stress value CS claim 1 , a second-order derivative CS″ of the stress value CSsatisfies CS″≤0.050.3. The chemically strengthened glass according to claim 1 , wherein a second-order derivative CS″ of the stress value CSis larger than 0.4. The chemically strengthened glass according to claim 1 , wherein the first-order derivative CS′ of the stress value CSis 0 or smaller.5. The chemically strengthened glass according to claim 1 , wherein in the profile of the stress value CS(MPa) claim 1 , a stress value CSat a glass outermost surface is 300 MPa or smaller.8. The chemically strengthened glass according to claim 1 , wherein:the chemically strengthened glass is a chemically strengthened glass obtained by a chemical strengthening of two or more steps; and{'sub': 2', '1, 'a maximum tensile stress CT(MPa) of the chemically strengthened glass is 50% to 99% of a maximum tensile stress CT(MPa) of a chemically strengthened glass obtained after a first-stage chemical strengthening of the chemical strengthening of two or more steps.'}9. ...

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GLASS BALL

A glass ball has a density of 2.3 to 3.2 g/cm, a Young's modulus of 60 to 150 GPa, and an average coefficient of thermal expansion at 50 to 350° C. being 40×10to 120×10/° C. The glass ball is formed of a glass material including, as represented by mole percentage based on oxides, 30 to 75 mol % of SiO, 2 to 30 mol % of AlO, and 5 to 25 mol % of RO, where R is at least one kind selected from Li, Na and K. The glass ball includes a compressive stress layer in a surface thereof. 1. A glass ball , having:{'sup': '3', 'a density of 2.3 to 3.2 g/cm;'}a Young's modulus of 60 to 150 GPa; and{'sup': −7', '−7, 'an average coefficient of thermal expansion at 50 to 350° C. being 40×10to 120×10/° C.,'}{'sub': 2', '2', '3', '2, 'the glass ball being formed of a glass material comprising, as represented by mole percentage based on oxides, 30 to 75 mol % of SiO, 2 to 30 mol % of AlO, and 5 to 25 mol % of RO, wherein R is at least one kind selected from Li, Na and K, and'}the glass ball comprising a compressive stress layer in a surface thereof.2. The glass ball according to claim 1 , wherein the compressive stress layer has a depth (DOL) of 8 to 500 μm.3. The glass ball according to claim 1 , wherein the glass material is a Li-based glass comprising claim 1 , as represented by mole percentage based on oxides claim 1 , 50 to 75 mol % of SiO claim 1 , 4 to 20 mol % of AlO claim 1 , 1 to 15 mol % of LiO claim 1 , 5 to 25 mol % of RO claim 1 , and 0 to 15 mol % of MgO claim 1 , wherein R is at least one kind selected from Li claim 1 , Na and K claim 1 , and SiO+AlO+RO+MgO is 92 mol % or higher.4. The glass ball according to claim 1 , wherein the glass material is a YO-based glass comprising claim 1 , as represented by mole percentage based on oxides claim 1 , 30 to 70 mol % of SiO claim 1 , 4 to 30 mol % of AlO claim 1 , 5 to 20 mol % of LiO claim 1 , 5 to 25 mol % of RO claim 1 , 1 to 25 mol % of MgO claim 1 , and 1 to 20 mol % of YO claim 1 , wherein R is at least one kind selected ...

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REINFORCED GLASS, REINFORCED GLASS PLATE, AND GLASS TO BE REINFORCED

A tempered glass is a tempered glass having a compression stress layer in a surface thereof, comprising as a glass composition, in terms of mol %, 50 to 80% of SiO, 5 to 30% of AlO, 0 to 2% of LiO, and 5 to 25% of NaO, and being substantially free of AsO, SbO, PbO, and F. 1. A tempered glass having a compression stress layer in a surface thereof , comprising , as a glass composition , in terms of mol % , 50 to 80% of SiO , 5 to 30% of AlO , 0 to 2% of LiO , and 5 to 25% of NaO , and being substantially free of AsO , SbO , PbO , and F.24-. (canceled)5. The tempered glass according to claim 1 , comprising as a glass composition claim 1 , in terms of mol % claim 1 , 50 to 77% of SiO claim 1 , 6.5 to 15% of AlO claim 1 , 0.01 to 15% of BO claim 1 , 0 to 1% of LiO claim 1 , 9 to 15.5% of NaO claim 1 , 9 to 15.5% of LiO+NaO+KO claim 1 , 0 to 2% of CaO claim 1 , 0 to 6.5% of MgO+CaO+SrO+BaO claim 1 , 15.5 to 22% of LiO+NaO+KO+MgO+CaO+SrO+BaO claim 1 , and 0 to 0.1% of PO claim 1 , and being substantially free of AsO claim 1 , SbO claim 1 , PbO claim 1 , and F.6. The tempered glass according to claim 1 , comprising as a glass composition claim 1 , in terms of mol % claim 1 , 50 to 77% of SiO claim 1 , 6.5 to 15% of AlO claim 1 , 0 to 1% of LiO claim 1 , 9 to 15.5% of NaO claim 1 , 9 to 15.5% of LiO+NaO+KO claim 1 , 0 to 2% of CaO claim 1 , 0 to 6.5% of MgO+CaO+SrO+BaO claim 1 , 15.5 to 22% of LiO+NaO+KO+MgO+CaO+SrO+BaO claim 1 , and 0 to 0.1% of PO claim 1 , having a molar ratio BO/(BO+LiO+NaO+KO+MgO+CaO+SrO+BaO) of from 0.06 to 0.35 claim 1 , and being substantially free of AsO claim 1 , SbO claim 1 , PbO claim 1 , and F.7. The tempered glass according to claim 1 , wherein the tempered glass has a density of 2.45 g/cmor less.8. The tempered glass according to claim 1 , wherein the tempered glass has a crack resistance before tempering treatment of 300 gf or more.9. The tempered glass according to claim 1 , wherein a compression stress value of the compression stress layer ...

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Zircon compatible, ion exchangeable glass with high damage resistance

An ion exchangeable glass having a high degree of resistance to damage caused by abrasion, scratching, indentation, and the like. The glass comprises alumina, B 2 O 3 , and alkali metal oxides, and contains boron cations having three-fold coordination. The glass, when ion exchanged, has a Vickers crack initiation threshold of at least 10 kilogram force (kgf).

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LITHIUM CONTAINING ALUMINOSILICATE GLASSES

A glass pharmaceutical package having a glass composition of 68.00 mol % to 81.00 mol % SiO, from 4.00 mol % to 11.00 mol % AlO, from 0.10 mol % to 16.00 mol % LiO, from 0.10 mol % to 12.00 mol % NaO, from 0.00 mol % to 5.00 mol % KO, from 0.10 mol % to 8.00 mol % MgO, from 0.10 mol % to 5.00 mol % CaO, from 0.00 mol % to 0.20 mol % fining agent. The glass pharmaceutical package is delamination resistant, and has class 1 or class 2 chemical durability in acid, base, and water. The glass pharmaceutical package may be substantially free of BO, SrO, BaO, and ZrO. 1. A glass pharmaceutical package having a glass composition comprising:{'sub': '2', 'from greater than or equal to 68.00 mol % to less than or equal to 81.00 mol % SiO;'}{'sub': 2', '3, 'from greater than or equal to 4.00 mol % to less than or equal to 11.00 mol % AlO;'}{'sub': '2', 'from greater than or equal to 0.10 mol % to less than or equal to 16.00 mol % LiO;'}{'sub': '2', 'from greater than or equal to 0.10 mol % to less than or equal to 12.00 mol % NaO;'}{'sub': '2', 'from greater than or equal to 0.00 mol % to less than or equal to 5.00 mol % KO;'}from greater than or equal to 0.10 mol % to less than or equal to 8.00 mol % MgO;from greater than or equal to 0.10 mol % to less than or equal to 5.00 mol % CaO;from greater than or equal to 0.00 mol % to less than or equal to 0.20 mol % fining agent, whereinthe glass pharmaceutical package is delamination resistant, andthe glass pharmaceutical package has class 1 or class 2 chemical durability in acid, base, and water.2. The glass pharmaceutical package according to claim 1 , wherein the fining agent is selected from the group consisting of SnO claim 1 , CeO claim 1 , AsO claim 1 , SbO claim 1 , Cl claim 1 , S claim 1 , F claim 1 , or FeO.3. The glass pharmaceutical package according to claim 1 , wherein the fining agent is SnO.4. The glass pharmaceutical package according to claim 1 , wherein the glass pharmaceutical package is substantially free of at ...

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GLASS COMPOSITIONS FOR USE IN CO-FORMED LAMINATES

Embodiments of a method for pair bending glass articles is provided herein. In the method, a first glass article and a second glass article are stacked to form a stack. The first glass article includes a first surface, a second surface that opposes the first surface, and a first composition having first annealing and softening temperatures. The second glass article includes a third surface, a fourth surface that opposes the third surface, and a second composition having second annealing and softening temperatures. The annealing temperatures are within 35° C. of each other and are at least 550° C. The softening temperatures are within 35° C. of each other and are at least 750° C. In the method, the stack is placed on a mold, and the stack is heated to a sagging temperature such that a shaped stack is formed. 1. A method for pair bending glass articles , the method comprising:stacking a first glass article and a second glass article to form a stack;placing the stack on a mold; andheating the stack to a sagging temperature such that a shaped stack is formed,wherein the first glass article comprises a first major surface, a second major surface that opposes the first major surface, and a first glass composition comprising a first annealing temperature and a first softening temperature,wherein the second glass article comprises a third major surface, a fourth major surface that opposes the third major surface, and a second glass composition comprising a second annealing temperature and a second softening temperature,wherein the first annealing temperature is within 35° C. of the second annealing temperature and wherein both the first annealing temperature and the second annealing temperature are at least 550° C.,wherein the first softening temperature is within 35° C. of the second softening temperature and wherein both the first softening temperature and the second softening temperature are at least 750 ° C.,wherein the second major surface faces the third major surface ...

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GLASS ARTICLE AND METHOD FOR MANUFACTURING THE SAME

A glass article includes lithium aluminosilicate, includes a first surface, a second surface opposed to the first surface, a first compressive region extending from the first surface to a first compression depth, a second compressive region extending from the second surface to a second compression depth, and, a tensile region disposed between the first compression depth and the second compression depth, where a stress profile of the first compressive region has a first local minimum point at which the stress profile is convex downward and a first local maximum point at which the stress profile is convex upward, where a depth of the first local maximum point is greater than a depth of the first local minimum point, and where a stress of the first local maximum point is greater than a compressive stress of the first local minimum point. 1. A glass article including lithium aluminosilicate , comprising:a first surface;a second surface opposed to the first surface;a first compressive region extending from the first surface to a first compression depth;a second compressive region extending from the second surface to a second compression depth; anda tensile region disposed between the first compression depth and the second compression depth,wherein a stress profile of the first compressive region has a first local minimum point at which the stress profile is convex downward and a first local maximum point at which the stress profile is convex upward,wherein a depth of the first local maximum point is greater than a depth of the first local minimum point, andwherein a stress of the first local maximum point is greater than a compressive stress of the first local minimum point.2. The glass article of claim 1 , wherein the stress of the first local maximum point is 0.32 times to 0.54 times a compressive stress at the first surface.3. The glass article of claim 2 , wherein a stress at the first surface ranges from 800 Megapascals to 900 Megapascals.4. The glass article of ...

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Process for preparing a glass-ceramic body

A process for preparing glass-ceramic body including the steps of providing a basic glass body and subjecting the basic glass body to a thermal treatment whereby a crystalline phase embedded in a glass matrix is formed. The basic glass body is made of a composition comprising 65 to 72 wt-% SiO 2 , at least 10.1 wt-% Li 2 O and at least 10.1 wt-% Al 2 O 3 based on the total weight of the composition, the proportion of Li 2 O to Al 2 O 3 being from 1:1 to 1.5:1. The thermal treatment involves a nucleation step followed by several crystallization steps at different temperatures, whereby at least two different crystalline phases are formed.

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COATED, ANTIMICROBIAL, CHEMICALLY STRENGTHENED GLASS AND METHOD OF MAKING

The disclosure is directed to a chemically strengthened glass having antimicrobial properties and to a method of making such glass. In particular, the disclosure is directed to a chemically strengthened glass with antimicrobial properties and with a low surface energy coating on the glass that does not interfere with the antimicrobial properties of the glass. The antimicrobial has an Ag ion concentration on the surface in the range of greater than zero to 0.047 μg/cm. The glass has particular applications as antimicrobial shelving, table tops and other applications in hospitals, laboratories and other institutions handling biological substances, where color in the glass is not a consideration. 1. An antimicrobial glass , comprising:a glass article having a surface; and{'sup': +', '+', '+1, 'an antimicrobial Ag region extending from the surface of the glass article to a depth of region in the glass article, the antimicrobial Ag region having a plurality of Agions,'}an ion exchange-derived, compressive stress layer extending from the surface of the glass article to a second depth in the glass article,{'sup': +1', '2, 'wherein the concentration of the plurality of Agions within 20 nm from the surface of the glass article is greater than or equal to 0.015 μg/cmas measured by x-ray photoluminescence spectroscopy (XPS) or electron microprobe (EMP) analytical techniques, and'}further wherein the compressive stress layer comprises a compressive stress of greater than or equal to 500 MPa.2. The antimicrobial glass according to claim 1 , wherein the compressive stress layer comprises a compressive stress of greater than or equal to 600 MPa.3. The antimicrobial glass according to claim 1 , wherein the concentration of the plurality of Agions within 20 nm from the surface of the glass article is less than or equal to 0.08 μg/cm.4. The antimicrobial glass according to claim 1 , the antimicrobial glass has a strength of at least 360 MPa based on a Ring on Ring test conducted ...

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THERMAL HISTORY-INSENSITIVE, ALKALI-CONTAINING GLASSES

A glass composition includes greater than or equal to 69.0 mol % SiO, greater than or equal to 7.0 mol % AlO, greater than or equal to 14.0 mol % RO, and an absolute value of a slope of a line extending between a first endpoint and a second endpoint less than or equal to |0.020|. The first endpoint is a Young's modulus at a fictive temperature of the annealing point temperature and the second endpoint is a Young's modulus at a fictive temperature of the strain point temperature, and the slope is a change in Young's modulus (GPa) per 1° C. change in fictive temperature. RO is a total amount of alkali metal oxides and includes at least two alkali metal oxides. A glass article and consumer electronic product are also disclosed. 1. A glass composition comprising:{'sub': '2', 'greater than or equal to 69.0 mol % SiO;'}{'sub': 2', '3, 'greater than or equal to 7.0 mol % AlO;'}{'sub': '2', 'greater than or equal to 14.0 mol % RO; and'}an absolute value of a slope of a line extending between a first endpoint and a second endpoint less than or equal to |0.020|, whereinthe first endpoint is a Young's modulus at a fictive temperature of an annealing point temperature and the second endpoint is a Young's modulus at a fictive temperature of a strain point temperature,the slope is a change in Young's modulus (GPa) per 1° C. change in fictive temperature, and{'sub': '2', 'RO is a total amount of alkali metal oxides and comprises at least two alkali metal oxides.'}2. The glass composition of claim 1 , wherein the absolute value of the slope is less than or equal to |0.015|.3. The glass composition of claim 1 , wherein the absolute value of the slope is less than or equal to |0.010|.4. The glass composition of claim 1 , wherein SiO+AlOis greater than 80.0 mol %.5. The glass composition of claim 1 , wherein RO is greater than or equal to 18.0 mol %.6. The glass composition of claim 1 , wherein RO comprises KO in an amount from greater than or equal to 7.0 mol % to less than or equal ...

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WATER-CONTAINING GLASS-BASED ARTICLES WITH HIGH INDENTATION CRACKING THRESHOLD

Glass-based articles that include a hydrogen-containing layer extending from the surface of the article to a depth of layer. The hydrogen-containing layer includes a hydrogen concentration that decreases from a maximum hydrogen concentration to the depth of layer. The glass-based articles exhibit a high Vickers indentation cracking threshold. Glass compositions that are selected to promote the formation of the hydrogen-containing layer and methods of forming the glass-based article are also provided. 1. A glass-based article , comprising:{'sub': 2', '2', '3', '2', '5, 'SiO, AlO, and PO; and'}a hydrogen-containing layer extending from a surface of the glass-based article to a depth of layer, a hydrogen concentration of the hydrogen-containing layer decreases from a maximum hydrogen concentration to the depth of layer; and', 'the depth of layer is at greater than 5 μm., 'wherein2. The glass-based article of claim 1 , wherein the glass-based article has a Vicker's crack initiation threshold of at least 1 kgf.3. The glass-based article of claim 1 , wherein the depth of layer is at least about 10 μm.4. The glass-based article of claim 1 , wherein the maximum hydrogen concentration is located at the surface of the glass-based article.5. The glass-based article of claim 1 , further comprising at least one of LiO claim 1 , NaO claim 1 , KO claim 1 , CsO claim 1 , and RbO.6. The glass-based article of claim 1 , further comprising KO.7. The glass-based article of claim 1 , wherein the center of the glass-based article comprises:{'sub': '2', 'greater than or equal to 45 mol % to less than or equal to 75 mol % SiO;'}{'sub': 2', '3, 'greater than or equal to 3 mol % to less than or equal to 20 mol % AlO;'}{'sub': 2', '5, 'greater than or equal to 6 mol % to less than or equal to 15 mol % PO; and'}{'sub': '2', 'greater than or equal to 6 mol % to less than or equal to 25 mol % KO.'}8. The glass-based article of claim 1 , wherein the center of the glass-based article comprises:{' ...

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GLASS FOR CHEMICAL STRENGTHENING AND CHEMICAL STRENGTHENED GLASS, AND MANUFACTURING METHOD OF GLASS FOR CHEMICAL STRENGTHENING

There is provided a glass for chemical strengthening having a gray-based color tone and excelling in characteristics preferred for the purposes of housing or decoration of an electronic device, that is, bubble quality, strength, and light transmittance characteristics. A glass for chemical strengthening contains, in mole percentage based on following oxides, 55% to 80% of SiO, 0.25% to 16% of AlO, 0% to 12% of BO, 5% to 20% of NaO, 0% to 15% of KO, 0% to 15% of MgO, 0% to 15% of CaO, 0% to 25% of ΣRO (where R represents Mg, Ca, Sr, Ba, or Zn), 0.01% to 0.2% of CoO, 0.05% to 1% of NiO, and 0.005% to 3% of FeO. 1. A glass for chemical strengthening comprising , in mole percentage based on following oxides , 55% to 80% of SiO , 0.25% to 16% of AlO , 0% to 12% of BO , 5% to 20% of NaO , 0% to 15% of KO , 0% to 15% of MgO , 0% to 15% of CaO , 0% to 25% of ΣRO (where R represents Mg , Ca , Sr , Ba , or Zn) , 0.01% to 0.2% of CoO , 0.05% to 1% of NiO , and 0.005% to 3% of FeO.2. The glass for chemical strengthening according to claim 1 , comprising claim 1 , in mole percentage based on following oxides claim 1 , 55% to 80% of SiO claim 1 , 3% to 16% of AlO claim 1 , 0% to 12% of BO claim 1 , 5% to 16% of NaO claim 1 , 0% to 15% of KO claim 1 , 0% to 15% of MgO claim 1 , 0% to 3% of CaO claim 1 , 0% to 18% of ΣRO (where R represents Mg claim 1 , Ca claim 1 , Sr claim 1 , Ba claim 1 , or Zn) claim 1 , 0.01% to 0.2% of CoO claim 1 , 0.05% to 1% of NiO claim 1 , and 0.005% to 3% of FeO.3. The glass for chemical strengthening according to claim 1 , comprising claim 1 , in mole percentage based on following oxides claim 1 , 55% to 80% of SiO claim 1 , 0.25% to 5% of AlO claim 1 , 0% to 12% of BO claim 1 , 5% to 20% of NaO claim 1 , 0% to 8% of KO claim 1 , 0% to 15% of MgO claim 1 , 5% to 15% of CaO claim 1 , 5% to 25% of ΣRO (where R represents Mg claim 1 , Ca claim 1 , Sr claim 1 , Ba claim 1 , or Zn) claim 1 , 0.01% to 0.2% of CoO claim 1 , 0.05% to 1% of NiO claim 1 , and 0. ...

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MANUFACTURING METHOD FOR TEMPERED GLASS SUBSTRATE, AND TEMPERED GLASS SUBSTRATE

A manufacturing method for a tempered glass substrate of the present invention includes: melting glass raw materials to obtain molten glass; forming the molten glass into a sheet shape to obtain a glass substrate having a long side dimension of 1,000 mm or more and a short side dimension of 500 mm or more; and performing ion exchange treatment in a state in which the glass substrate is tilted to form a compressive stress layer in a surface of the glass substrate. 1. A manufacturing method for a tempered glass substrate ,the manufacturing method comprising:melting glass raw materials to obtain molten glass;forming the molten glass into a sheet shape to obtain a glass substrate having a long side dimension of 1,000 mm or more and a short side dimension of 500 mm or more; andperforming ion exchange treatment in a state in which the glass substrate is tilted to form a compressive stress layer in a surface of the glass substrate.2. The manufacturing method for a tempered glass substrate according to claim 1 , wherein the ion exchange treatment is performed in a state in which the glass substrate is tilted by from 0.1° to 30° with respect to a vertical direction.3. The manufacturing method for a tempered glass substrate according to claim 1 , wherein the ion exchange treatment is performed in a state in which the glass substrate is tilted by causing a tilt support portion provided in a support jig to support the glass substrate.4. The manufacturing method for a tempered glass substrate according to claim 3 , wherein a value of (length dimension of a part of the tilt support portion held in contact with the glass substrate)/(total of length dimensions of four sides of the glass substrate) is 0.01 or more.5. The manufacturing method for a tempered glass substrate according to claim 3 , wherein the part of the tilt support portion held in contact with the glass substrate has an arc shape having a radius of curvature of 0.1 mm or more.6. The manufacturing method for a ...

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Tube-drawable glass, method for the production and use

A glass has a maximum crystallization rate (KGmax) of at most 0.20 μm/min in a temperature range of 700° C. to 1250° C. and a hydrolytic stability according to a hydrolytic class 1 HGA1 according to ISO 720:1985. In the case of a sample thickness of 2 mm of the glass, a ratio of a minimum transmittance in a wavelength range of 850 nm to 950 nm to a maximum transmittance in a wavelength range of 250 nm to 700 nm is in a range of 1.9:1 to 15:1.

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COATED, ANTIMICROBIAL, CHEMICALLY STRENGTHENED GLASS AND METHOD OF MAKING

The disclosure is directed to a chemically strengthened glass having antimicrobial properties and to a method of making such glass. In particular, the disclosure is directed to a chemically strengthened glass with antimicrobial properties and with a low surface energy coating on the glass that does not interfere with the antimicrobial properties of the glass. The antimicrobial has an Ag ion concentration on the surface in the range of greater than zero to 0.047 μg/cm. The glass has particular applications as antimicrobial shelving, table tops and other applications in hospitals, laboratories and other institutions handling biological substances, where color in the glass is not a consideration. 1. An antimicrobial glass , comprising:a glass article having a surface; and{'sup': +', '+', '+1, 'an antimicrobial Ag region extending from the surface of the glass article to a depth of region in the glass article, the antimicrobial Ag region having a plurality of Agions,'}{'sup': +1', '2', '2, 'wherein the concentration of the plurality of Agions within 20 nm from the surface of the glass article is in the range of greater than or equal to 0.015 μg/cmto less than or equal to 0.08 μg/cmas measured by x-ray photoluminescence spectroscopy (XPS) or electron microprobe (EMP) analytical techniques, and'}further wherein the antimicrobial glass has a strength of at least 360 MPa based on a Ring on Ring test conducted after abrasion of the surface.2. The glass according to claim 1 , wherein the antimicrobial glass has an average strength of about 400 MPa based on a set of Ring on Ring tests conducted after abrasion of the surface.3. The glass according to claim 1 , wherein the depth of region is up to about 20 μm.4. The glass according to claim 1 , wherein the concentration of the plurality of Agions within 20 nm from the surface of the glass article is in the range of greater than or equal to 0.015 μg/cmto less than or equal to 0.05 μg/cm.5. The glass according to claim 1 , further ...

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TEST METHOD FOR QUALITY EVALUATION AND COATED CONTAINER

A coated container includes: a container having a surface; and a coating applied to at least part of the surface to form a coated surface. Leaching of at least one of one or more types of ions or one or more types of compounds is determined by performing an alkaline treatment on at least part of the coated surface to obtain an alkaline treated surface and performing an acidic treatment on at least part of the alkaline treated surface to obtain an acidic treated surface. The leaching of the at least one of one or more types of ions or one or more types of compounds from the coated surface is 5.00 mg/l or less. 1. A coated container , comprising:a container comprising a surface; anda coating applied to at least part of the surface to form a coated surface, wherein leaching of at least one of one or more types of ions or one or more types of compounds is determined by performing an alkaline treatment on at least part of the coated surface to obtain an alkaline treated surface and performing an acidic treatment on at least part of the alkaline treated surface to obtain an acidic treated surface, wherein the leaching of the at least one of one or more types of ions or one or more types of compounds from the coated surface is 5.00 mg/l or less.2. The coated container of claim 1 , wherein the container defines a brimful volume claim 1 , wherein the leaching of the at least one of one or more types of ions or one or more types of compounds is a claim 1 , wherein a≤b*c;wherein if 0.9× the brimful volume of the container is ≤1 ml, b is 5.00 mg/l;wherein if 0.9× the brimful volume of the container is >1 ml and ≤2 ml, b is 4.50 mg/l;wherein if 0.9× the brimful volume of the container is >2 ml and ≤3 ml, b is 4.10 mg/l;wherein if 0.9× the brimful volume of the container is >3 ml and ≤5 ml, b is 3.20 mg/l;wherein if 0.9× the brimful volume of the container is >5 ml and ≤10 ml, b is 2.50 mg/l;wherein if 0.9× the brimful volume of the container is >10 ml and ≤20 ml, b is 2.00 mg/l; ...

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CHEMICALLY STRENGTHENED GLASS AND METHOD FOR MANUFACTURING CHEMICALLY STRENGTHENED GLASS

Provided is a tempered glass sheet, including: a compressive stress layer having a compressive stress of 20 MPa or more continuously from a main surface in a depth direction thereof; a tensile stress layer that is arranged on an inner side with respect to the compressive stress layer in a sheet thickness direction and has a tensile stress of 20 MPa or more continuously in a depth direction thereof; and a stress-neutral layer arranged between the compressive stress layer and the tensile stress layer, wherein the stress-neutral layer has a compressive stress of less than 20 MPa and/or a tensile stress of less than 20 MPa continuously in the sheet thickness direction, and has a thickness of 5.3% or more of a sheet thickness. 1. A chemically tempered glass , comprising:a compressive stress layer having a compressive stress of 20 MPa or more continuously from a main surface in a depth direction thereof;a tensile stress layer that is arranged on an inner side with respect to the compressive stress layer in a sheet thickness direction and has a tensile stress of 20 MPa or more continuously in a depth direction thereof; anda stress-neutral layer arranged between the compressive stress layer and the tensile stress layer, has a compressive stress of less than 20 MPa and/or a tensile stress of less than 20 MPa continuously in the sheet thickness direction, and', 'has a thickness of 5.3% or more of a sheet thickness., 'wherein the stress-neutral layer'}2. The chemically tempered glass according to claim 1 , wherein the stress-neutral layer further comprises a neutral core layer that continuously has a compressive stress 0.01 or less times as large as a maximum compressive stress value of the compressive stress layer and/or a tensile stress 0.1 or less times as large as a maximum tensile stress value of the tensile stress layer claim 1 , and that has a thickness of 2.5% or more of the sheet thickness.3. The chemically tempered glass according to claim 1 , wherein the thickness ...

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GLASS FOR CHEMICAL STRENGTHENING, CHEMICALLY STRENGTHENED GLASS, AND ELECTRONIC DEVICE CASE

The present invention pertains to a glass for strengthening, that: has an average transmittance of at least 70% when converted to a thickness of 0.8 mm at a wavelength of 380-780 nm; has a haze value of no more than 0.7% when converted to a thickness of 0.8 mm in a C light source; has a Young's modulus of at least 85 GPa; has a fracture toughness value of at least 0.90 MPa·m; a thermal conductivity at 20° C. of at least 1.3 W/m·K; and comprises a lithium aluminosilicate crystallized glass. 1. A glass for chemical strengthening , having:an average transmittance at a wavelength of 380 to 780 nm of 70% or higher in terms of a thickness of 0.8 mm;a haze value of 0.7% or lower in terms of the thickness of 0.8 mm at a C illuminant;a Young's modulus of 85 GPa or more;{'sup': '1/2', 'a fracture toughness value of 0.90 MPa·mor more; and'}a thermal conductivity at 20° C. of 1.3 W/m·K or more,and comprising a lithium aluminosilicate crystallized glass.2. The glass for chemical strengthening according to claim 1 , having a Vickers hardness of 680 or more.3. The glass for chemical strengthening according to claim 1 , wherein the crystallized glass comprises a β-spodumene.4. The glass for chemical strengthening according to claim 1 , comprising claim 1 , as expressed by mass % on an oxide basis:{'sub': '2', '58 to 71% of SiO,'}{'sub': 2', '3, '8 to 30% of AlO;'}{'sub': '2', '1 to 15% of LiO;'}{'sub': '2', '0 to 5% of NaO;'}{'sub': '2', '0 to 2% of KO;'}{'sub': '2', '0 to 6% of SnO;'}{'sub': '2', '0 to 8% of ZrO; and'}{'sub': 2', '5, '0 to 6% of PO.'}5. A chemically strengthened glass claim 1 , having:an average transmittance at a wavelength of 380 to 780 nm of 70% or higher in terms of a thickness of 0.8 mm;a haze value of 0.7% or lower in terms of the thickness of 0.8 mm at a C illuminant;a Young's modulus of 85 GPa or more;{'sup': '1/2', 'a fracture toughness value of 0.90 MPa·mor more;'}a thermal conductivity at 20° C. of 1.3 W/m·K or more; anda surface compressive stress of ...

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