ОГНЕСТОЙКИЙ ПРОДУКТ И ЕГО ПРИМЕНЕНИЕ

FIELD: chemistry. SUBSTANCE: composition advantageously contains, at least, 30 wt % of untreated olivine with coarse particles containing forsterite in an amount of, for example, at least, 70 wt % and having particle sizes greater than 0.1 mm; at least, 35 wt % of magnesium oxide in the form of flour with a particle size of < 1 mm; silicon carbide in the form of flour with a particle size of < 1 mm; up to 10 wt % of fine-disperse silicic acid and up to 10 wt % of antioxidant. The composition is used in a mixture with 2-10 wt % of the silica powder in the form of moulded bricks or fire-resistant casting material, in which water is added to achieve the necessary plasticity. EFFECT: improving the resistance of refractories to melts of fayalite slags and to the effect of sulfates at the temperature of application. 22 cl, 1 tbl, 7 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 638 671 C2 (51) МПК C04B 35/043 (2006.01) C04B 35/66 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2015106717, 23.05.2013 (24) Дата начала отсчета срока действия патента: 23.05.2013 (72) Автор(ы): ЯНСЕН Хельге (DE) (73) Патентообладатель(и): РЕФРАТЕХНИК ХОЛДИНГ ГМБХ (DE) Дата регистрации: (56) Список документов, цитированных в отчете о поиске: US 4497901 A, 05.02.1985. CN Приоритет(ы): (30) Конвенционный приоритет: 101328070 A, 24.12.2008. JP 49-005407 A, 18.01.1974. RU 2002123832 A1, 20.03.2004. 27.07.2012 DE 102012015026.1 (45) Опубликовано: 15.12.2017 Бюл. № 35 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 27.02.2015 (86) Заявка PCT: EP 2013/060572 (23.05.2013) (87) Публикация заявки PCT: 2 6 3 8 6 7 1 (43) Дата публикации заявки: 20.09.2016 Бюл. № 26 R U 15.12.2017 2 6 3 8 6 7 1 R U Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" (54) ОГНЕСТОЙКИЙ ПРОДУКТ И ЕГО ПРИМЕНЕНИЕ (57) Реферат: Изобретение относится к огнестойкому размером частиц ...

ОГНЕУПОРНЫЙ ВОССТАНОВЛЕННЫЙ ГРАНУЛЯТ, СПОСОБ ЕГО ПОЛУЧЕНИЯ И ЕГО ПРИМЕНЕНИЕ

Изобретение относится к огнеупорному восстановленному грануляту и может применяться в производстве огнеупорных бетонов и пластичных масс, например, для заделки лёток, для литья под давлением или в составе огнеупорных строительных растворов. Огнеупорный восстановленный гранулят из механически обработанного материала сколов и/или материала износа представляет собой зерна, имеющие на поверхности средство покрытия, причем средство покрытия является водоотталкивающим и состоит из а) гидрофобизатора или b) комбинации из фенольной смолы и ее отвердителя, причем гранулят имеет рН от 6 до 8,5 у высокоглиноземистых материалов и от 9 до 12 у магнезитовых материалов в водной среде; предел прочности зерен на сжатие по DIN 4226 части 3, или EN 13055-1/2002 от 8 до 150 Н/мм. Технический результат изобретения - исключение влияния химических загрязнений и избыточной удельной поверхности материала сколов на затвердевание огнеупорной массы и механические свойства футеровок. 3 н. и 15 з.п. ф-лы, 1 табл.

СИНТЕТИЧЕСКИЕ РАСКЛИНИВАЮЩИЕ НАПОЛНИТЕЛИ И МОНОДИСПЕРСНЫЕ РАСКЛИНИВАЮЩИЕ НАПОЛНИТЕЛИ И СПОСОБЫ ИХ ИЗГОТОВЛЕНИЯ

Изобретение относится к расклинивающим наполнителям и способам их создания. Описывается множество керамических расклинивающих наполнителей, где наполнители являются монодисперсными с распределением, являющимся распределением 3-сигма или ниже с шириной общего распределения 5% или менее от среднего размера частиц, а также другие варианты указанных наполнителей, способы изготовления этих расклинивающих наполнителей и способы использования этих расклинивающих наполнителей в извлечении углеводородов. Изобретение развито в зависимых пунктах формулы. Технический результат - повышение степени монодисперсности расклинивающего наполнителя, производительности при его получении, повышение эффективности гидроразрыва с использованием указанных наполнителей. 18 н. и 147 з.п. ф-лы, 38 ил., 15 табл., 7 пр.

СПОСОБ АДДИТИВНОГО ИЗГОТОВЛЕНИЯ ДЕТАЛЕЙ ПЛАВЛЕНИЕМ ИЛИ СПЕКАНИЕМ ЧАСТИЦ ПОРОШКА С ПОМОЩЬЮ ВЫСОКОЭНЕРГЕТИЧЕСКОГО ПУЧКА С ПОРОШКАМИ, АДАПТИРОВАННЫМИ К ЦЕЛЕВОЙ ПАРЕ ПРОЦЕСС/МАТЕРИАЛ

Группа изобретений относится к изготовлению детали путём плавления или спекания частиц порошка посредством высокоэнергетического пучка. Используют единый порошок, частицы которого имеют сферичность в диапазоне от 0,8 до 1,0 и фактор формы в диапазоне от 1 до √2. Каждая частица порошка имеет по существу идентичный средний состав. Распределение по размеру частиц указанного порошка ограничено вокруг значения среднего диаметра dс обеспечением соблюдения заданных выражений. Состав используемого порошка включает по меньшей мере один дополнительный химический элемент с ненулевым содержанием, которое составляет менее 0,5 мас.%, обеспечивающий модификацию микроструктуры указанного материала детали, которую получают из указанного материала, по сравнению с микроструктурой, получаемой в случае, в котором указанный дополнительный химический элемент отсутствует в составе порошка. Указанные частицы порошка обеспечивают армирующие элементы, а указанный дополнительный химический элемент обеспечивает облегчение ...

ПРОДУКТ ИЗ ОКСИДА ХРОМА

Изобретение относится к огнеупорному продукту, применяемому в качестве внутренней облицовки газификатора. Спеченный огнеупорный продукт состоит из заполнителя, связанного матриксом, и содержит оксиды в процентном соотношении по массе: более 65 CrO, менее 35 AlO, 1 или более ZrO, по меньшей мере 20 масс. % которого стабилизировано в кубической и/или тетрагональной форме, 0,1 или более YO, действующего в качестве стабилизатора оксида циркония ZrO, менее 1,9% HfO, причем общее содержание оксида хрома, оксида алюминия и оксида циркония CrO+AlO+ZrOсоставляет более 90 масс. %. Продукт содержит соактиватор, действующий или не действующий в качестве стабилизатора оксида циркония, выбранный из СаО, MgO, TiOи их смесей, причем суммарное содержание оксида кальция, оксида магния и оксида титана СаО+MgO+TiOсоставляет менее 6,0 масс. % и более 0,5 масс. %, и более 50 масс. % оксида иттрия и соактиватора присутствуют в матриксе. Технический результат изобретения – улучшение устойчивости огнеупоров к шлаковой ...

КАТОДНОЕ УСТРОЙСТВО АЛЮМИНИЕВОГО ЭЛЕКТРОЛИЗЕРА

FIELD: physics. SUBSTANCE: invention is related to design of cathode device of electrolytic cell for aluminum production by electrolysis. Cathode device comprises a metal casing lined with lateral blocks installed on the curb, bottom-hole coal-graphite blocks with current-carrying rods, base from heat-insulating layer and refractory layer made of mixture of porcellanite 23–26 wt %, quartzite – 43–46 wt% anodes and spent mullite bricks of anode burning furnaces 28–32 wt % and compacted to apparent density of not less than 2,100 kg/m 3 . EFFECT: longer service life of the electrolysis cell, reduced consumption of fluoride salts and wider raw material base due to recycling wastes from aluminum plants and use of natural materials and slower penetration of aggressive components of electrolysis into the refractory layer. 10 cl, 1 dwg, 1 tbl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 685 821 C1 (51) МПК C25C 3/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C25C 3/08 (2018.08) (21) (22) Заявка: 2018121209, 07.06.2018 (24) Дата начала отсчета срока действия патента: 07.06.2018 23.04.2019 (45) Опубликовано: 23.04.2019 Бюл. № 12 Адрес для переписки: 660111, г. Красноярск, ул. Пограничников, 37, стр. 1, ООО "РУСАЛ ИТЦ", начальнику ПИО С.А. Пановой (73) Патентообладатель(и): Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" (RU) (56) Список документов, цитированных в отчете о поиске: RU 2608942 C1, 26.01.2017. RU C 1 2 6 8 5 8 2 1 R U (54) КАТОДНОЕ УСТРОЙСТВО АЛЮМИНИЕВОГО ЭЛЕКТРОЛИЗЕРА (57) Реферат: Изобретение относится к конструкции обжига анодов 28-32 мас. % и уплотненного до катодного устройства электролизера для кажущейся плотности не менее 2100 кг/м3. производства алюминия электролизом. Катодное Обеспечивается увеличение срока службы устройство содержит металлический кожух, электролизера, сокращение расхода фтористых футерованный боковыми блоками, солей и ...

ОГНЕУПОРНЫЙ ВОССТАНОВЛЕННЫЙ ГРАНУЛЯТ, СПОСОБ ЕГО ПОЛУЧЕНИЯ И ЕГО ПРИМЕНЕНИЕ

... 1. Огнеупорный восстановленный гранулят из механически обработанного огнеупорного материала сколов и/или материала износа, чьи зерна на поверхности имеют средство покрытия,отличающийся тем, чтосредство покрытие является водоотталкивающим и состоит изa) гидрофобизатора,илиb) комбинации из фенольной смолы и ее отвердителя,причем гранулят, в частности, имеетc) значение рН в водной среде от 6 до 12, более конкретно от 6 до 9, предпочтительно, от 6 до 8,5 для высокоглиноземистых материалов и от 9 до 12 для магнезитовых материалов,а) предел прочности зерен на сжатие по DIN 4226 части 3, или EN 13055-1/2002 от 8 до 150, более конкретно от 15 до 100 Н/мм.2. Восстановленный гранулят по п.1, отличающийся тем, что гидрофобизатор выбирают из группы кремнийорганических полимеров.3. Восстановленный гранулят по п.2, отличающийся тем, что слой средства покрытия на зернах является наношкальным, и гранулят содержит количество средства покрытия от 0,1 до 5,0, более конкретно от 0,5 до 1,0% масс.4. Восстановленный ...

ГРУБОКЕРАМИЧЕСКИЙ ОГНЕУПОР И ОГНЕУПОРНОЕ ИЗДЕЛИЕ ИЗ НЕГО

... 1. Грубокерамический огнеупор, в основном содержащий ! а) по меньшей мере один зернистый огнеупорный минеральный основный главный компонент из основного огнеупорного сырья, базированного по меньшей мере на одном основном огнеупорном соединении MgO или MgO и CaO, и ! б) по меньшей мере одну зернистую огнеупорную минеральную, базированную на MgO, не содержащую шпинель, придающую эластичность добавку ! б1) в виде форстерит-материала, со следующим гранулометрическим составом: ! 1-6 мм от 50 до 100, в частности от 70 до 80 мас.%; ! 0,25-1 мм от 0 до 50, в частности от 20 до 30 мас.%, ! или ! б2) в виде зернистого компонента из формованных частичек, которые содержат в виде порошковой смеси только сырье для образования форстерита или форстерит-материала в рабочих условиях и имеет зернистость от 0,3 до 8 мм, причем добавка содержится в огнеупоре в количествах, пластифицирующих главный компонент. ! 2. Огнеупор по п.1, отличающийся тем, что главным компонентом является ! магнезия, предпочтительно ...

ГРУБОКЕРАМИЧЕСКОЕ ОГНЕУПОРНОЕ ИЗДЕЛИЕ И СПОСОБ ЕГО ИЗГОТОВЛЕНИЯ, А ТАКЖЕ ЕГО ПРИМЕНЕНИЕ

FIELD: chemistry.SUBSTANCE: invention relates to a refractory, coarse ceramic product used as a working liner on the side of fire exposure in an industrial furnace, in particular in furnace plants for the production of cement, mine lime kilns or rotary lime kilns, heating furnaces, and furnaces for power generation. Open porosity of the refractory product is 23–45 vol. %, where in the composition of the refractory material, the proportion of the medium size fraction with a grain size between 0.1 and 0.5 mm ranges from 10 to 55 wt. %, the proportion of the fine-grained fraction with grain sizes of up to 0.1 mm is 20–61 wt. %, and the proportion of the coarse-grained fraction with grain sizes above 0.5 mm is 9–25 wt. %. Refractory material can be selected from the group: magnesia, calcined dolomite, alumina magnesia spinel, hercynit, forsterite, pleonaste, chrome ore, zirconia, calcium aluminate, calcium hexaaluminate, alumina and/or SiC aluminosilicate raw materials, ball clay, or mixtures thereof.EFFECT: technical result of the invention is the reduction of shrinkage of the material during high-temperature application.8 cl, 5 tbl, 4 ex, 6 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 671 021 C1 (51) МПК C04B 35/043 (2006.01) C04B 35/63 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C04B 35/0435 (2006.01); C04B 35/66 (2006.01); C04B 35/443 (2006.01); C04B 2235/3206 (2006.01); C04B 2235/3222 (2006.01); C04B 2235/3244 (2006.01); C04B 2235/3445 (2006.01); C04B 2235/5418 (2006.01); C04B 2235/604 (2006.01); C04B 2235/78 (2006.01) (21)(22) Заявка: 2016126171, 21.10.2014 21.10.2014 Дата регистрации: Приоритет(ы): (30) Конвенционный приоритет: (56) Список документов, цитированных в отчете о поиске: JP 2013-001584 A1, 07.01.2013. SU 10.12.2013 DE 10 2013 020 732.0 1689360 A1, 07.11.1991. SU 604846 A, 18.04.1978. EP 1260289 A1, 27.11.2002. GB 1327749 A, 22.08.1973. (45) Опубликовано: 29.10.2018 Бюл. № 31 (85) Дата ...

СПЕЧЕННЫЙ ОГНЕУПОРНЫЙ БЛОК НА ОСНОВЕ КАРБИДА КРЕМНИЯ СО СВЯЗКОЙ ИЗ НИТРИДА КРЕМНИЯ

... 1. Огнеупорный блок на основе карбида кремния (SiC), реакционно спеченный при температуре от 1100 до 1700°С с образованием связки из нитрида кремния (Si3N4), предназначенный, в частности, для изготовления ячейки для электролиза алюминия, отличающийся тем, что он содержит от 0,05% до 1,5% бора, а массовое отношение Si3N4/SiC составляет от 0,05 до 0,45. 2. Спеченный огнеупорный блок по п.1, отличающийся тем, что содержание бора составляет от 0,05% до 1,2 мас.%. 3. Спеченный огнеупорный блок по п.1, отличающийся тем, что массовое отношение Si3N4/SiC составляет от 0,1 до 0,2. 4. Спеченный огнеупорный блок по п.1, отличающийся тем, что нитрид кремния (Si3N4) в форме бета составляет по меньшей мере 40 мас.% от общего количества нитрида кремния (Si3N4) в форме бета и в форме альфа. 5. Спеченный огнеупорный блок по п.4, отличающийся тем, что нитрид кремния (Si3N4) в форме бета составляет по меньшей мере 80 мас.% от общего количества нитрида кремния (Si3N4) в форме бета и в форме альфа. 6. Спеченный ...

ТЕЛО, ПОЛУЧЕННОЕ СПЕКАНИЕМ, И ЕГО ПРИМЕНЕНИЕ

... 1. Тело, полученное спеканием, содержащее от 30 до 100 мол.% NbOx, где 0,5 Подробнее

РАСПЛАВЛЕННЫЕ ЗЕРНА НЕДОКСИДОВ ТИТАНА И КЕРАМИЧЕСКИЕ ИЗДЕЛИЯ, СОДЕРЖАЩИЕ ТАКИЕ ЗЕРНА

... 1. Расплавленные зерна, состоящие, в основном, из фаз недоксидов титана, отвечающих формуле TiO, в которых указанные фазы являются, главным образом, TiOили TiOили смесью двух этих фаз, причем указанные фазы TiOи/или TiOсоставляют, в целом, более 60% от массы зерен, причем указанные зерна дополнительно содержат менее 30 массовых % TiO.2. Расплавленные зерна по п. 1, в которых фазы TiOи/или TiOсоставляют, в целом, более 70% от массы зерен.3. Расплавленные зерна по п. 1 или 2, содержащие менее 25 массовых % TiO.4. Расплавленные зерна по любому из пп. 1 или 2, содержащие более 90 массовых %, в целом, недоксида(ов) титана, отвечающих общей формуле TiO, причем n является целым числом, больше 3.5. Расплавленные зерна по п. 4, в которых n составляет от 4 до 9 включительно, и в которых указанные фазы TiOсоставляют, в целом, более 90% от массы зерен.6. Расплавленные зерна по любому из пп. 1 или 2, отвечающие, в основном, общей усредненной формуле TiO, в которой x составляет от 1,95 до 1,50 и предпочтительно ...

ПРОНИЦАЕМЫЙ ОГНЕУПОРНЫЙ МАТЕРИАЛ ДЛЯ ПРОДУВАЕМОГО ГАЗОМ СОПЛА

... 1. Проницаемый материал, имеющий проницаемость по меньшей мере около 50 cD, представляющий собой связанный смолой материал, который изготовлен из композиции, которая содержит огнеупорный заполнитель; 0,5-15 вес.% по меньшей мере одного газопоглотителя кислорода; и связующее. 2. Проницаемый материал по п.1, в котором огнеупорный заполнитель составляет по меньшей мере 80 вес.% композиции, причем огнеупорный заполнитель содержит по меньшей мере около 60 вес.% заполнителя, имеющего размер частиц +80 меш или больше; меньше, чем 20 вес.% заполнителя, имеющего размер частиц от -80 до +325 меш; и меньше, чем 20 вес.% заполнителя, имеющего размер частиц меньше, чем -325 меш. 3. Проницаемый материал по п.2, в котором огнеупорный заполнитель содержит по меньшей мере один оксид, выбранный из группы, в которую входят оксид алюминия, оксид магния, диоксид кремния, диоксид циркония, оксид кальция, а также их смеси и соединения. 4. Проницаемый материал по одному из пп.1-3, в котором газопоглотитель кислорода ...

Graphiterzeugnis und Verfahren zu seiner Herstellung

Aus Graphit geformtes Graphiterzeugnis, das mit einem an sich bekannten Bindemittel zu einem Formkörper verfestigt ist, dadurch gekennzeichnet, dass das Graphiterzeugnis im Wesentlichen ein homogenes Gemisch aus mindestens zwei Graphitsorten mit jeweils unterschiedlichen Wärmeausdehnungskoeffizienten aufweist, wobei eine Graphitsorte mengenmäßig überwiegt und die andere Graphitsorte als Zusatzgraphitsorte fungiert, wobei sich die Graphitsorten in einem Formfaktor FF unterscheiden, der mit ihrem Wärmeausdehnungskoeffizienten korreliert, wobei der Formfaktor FF sich jeweils ergibt aus einer Division einer Siebmaschenweite in μm, durch die eine bestimmte prozentuale Graphitflockenmenge x dieser Graphitsorte durchgeht (dx-Wert), durch eine aus mindestens einer REM-Aufnahme optisch ermittelten und rechnerisch gemittelten Dicke c von auf der REM-Aufnahme sichtbaren Flocken der Graphitsorte, wobei ein kleiner Formfaktor FF mit einem hohen Wärmeausdehnungskoeffizienten und ein größerer Formfaktor ...

Ungeformte, feuerfeste Massen

PCBN Material, Method for making same, tools comprising same and method of using same

Fine-grain oxide powder

An additive used in forming ceramic articles by slip casting

Ceramic articles are formed from a slip casting composition consisting of a suspension in water comprising a particulate solid mixture of a kaolinitic clay, a fluxing material, a siliceous material and a dispersing agent for the particulate solid mixture, wherein the particulate solid mixture is substantially free of smectite clay and the kaolin clay is treated before being incorporated into the solid mixture with a water-soluble polyamine having a number average molecular weight not less than 100,000. Preferably the molecular weight of the polymer is not greater than 1,000,000. The polymer is not used at greater than 0.5%, based on the weight of the dry kaolinitic clay, preferably in the range from 0.05% to 0.4%. The polyamine may be quaternised so that it is in the form of a polyquaternary ammonium salt.

A method of making a building product from slate and clay

A method of making a building product by mixing slate particles, clay particles and water to form a formable homogeneous mixture where the slate particles and the clay particles are substantially all sized so as to pass through a sieve of 1mm and such that not more than 25% of the slate particles have a size less than 63 microns. The ratio by weight of the slate to clay in the mixture is between 40 and 60%. The wet mixture is extruded, partially dried, cut into lengths and fired at a temperature of at least 950°C, converting clay into a binder material. Also disclosed is a method of making a building product by mixing slate particles with water sufficient to wet the particles over their entire surface area, mixing the slate with clay particles to produce a homogeneous formable mixture. The mixture is extruded, partially dried, cut into lengths and fired, converting clay into a binder material.

Powder modification in the manufacture of solid state capacitor anodes

A method of producing refractory material

A method of producing refractory material

REFRACTORY CERAMIC BATCH AND BRICK PRODUCED THEREFROM

SILICEOUS COMPOSITION AND METHOD FOR OBTAINING SAME

Refractory ceramic batch and brick produced therefrom

Refractory ceramic batch and brick produced therefrom

SILICEOUS COMPOSITION AND METHOD FOR OBTAINING SAME

SILICEOUS COMPOSITION AND METHOD FOR OBTAINING SAME

Refractory ceramic batch and brick produced therefrom

DIELECTRIC CERAMIC POWDER, PROCEDURE FOR ITS PRODUCTION AS WELL AS DIEKEKTRI BONDING MATERIAL

CERAMIC SHOCK-ABSORBING PRODUCTS OF ALUMINA

PRODUCTION OF POLLUTION FREE CARBON-BOUND FIREPROOF CERTIFICATIONS IN THE COLD MIXING PROCESS

SILICON COMPOSITIONS

VERFAHREN ZUR HERSTELLUNG EINES FEINTEILIGEN OXIDPULVERS

FIREPROOF MATERIAL ON BASIS OF POLYCRYSTALLINE ALUMINA

FROM ZIRCON SILICATE AND ZIRCON OXIDE MANUFACTURED SINTER MATERIALS

DIELECTRIC CERAMIC POWDER, PROCEDURE FOR ITS PRODUCTION AS WELL AS DIEKEKTRI BONDING MATERIAL

DIELECTRIC CERAMIC POWDER, PROCEDURE FOR ITS PRODUCTION AS WELL AS DIEKEKTRI BONDING MATERIAL

DIELECTRIC CERAMIC POWDER, PROCEDURE FOR ITS PRODUCTION AS WELL AS DIEKEKTRI BONDING MATERIAL

DIELECTRIC CERAMIC POWDER, PROCEDURE FOR ITS PRODUCTION AS WELL AS DIEKEKTRI BONDING MATERIAL

DIELECTRIC CERAMIC POWDER, PROCEDURE FOR ITS PRODUCTION AS WELL AS DIEKEKTRI BONDING MATERIAL

DIELECTRIC CERAMIC POWDER, PROCEDURE FOR ITS PRODUCTION AS WELL AS DIEKEKTRI BONDING MATERIAL

DIELECTRIC CERAMIC POWDER, PROCEDURE FOR ITS PRODUCTION AS WELL AS DIEKEKTRI BONDING MATERIAL

DIELECTRIC CERAMIC POWDER, PROCEDURE FOR ITS PRODUCTION AS WELL AS DIEKEKTRI BONDING MATERIAL

DIELECTRIC CERAMIC POWDER, PROCEDURE FOR ITS PRODUCTION AS WELL AS DIEKEKTRI BONDING MATERIAL

DIELECTRIC CERAMIC POWDER, PROCEDURE FOR ITS PRODUCTION AS WELL AS DIEKEKTRI BONDING MATERIAL

DIELECTRIC CERAMIC POWDER, PROCEDURE FOR ITS PRODUCTION AS WELL AS DIEKEKTRI BONDING MATERIAL

MAGNESIUM ALUMINUM SILICATE STRUCTURES FOR DPF APPLICATIONS

COATING MATERIAL, CERAMIC HONEYCOMB STRUCTURE AND METHOD FOR PRODUCTION THEREOF

Sintered refractory block based on silicon carbide with a silicon nitride bond

CRACK-RESISTANT DRY REFRACTORY

REFRACTORY MATERIAL PRODUCED FROM RED MUD

CATHODE ASSEMBLY OF AN ALUMINUM REDUCTION CELL

The invention relates to the design of a cathode device for an electrolytic cell for producing aluminum by electrolysis. The present cathode device comprises a metal shell lined with side blocks mounted onto a rim, carbon-graphite bottom blocks having conductive rods, a base made of a thermal insulation layer and a refractory layer that is made of a mixture of 23-26 wt % porcellanite, 43-46 wt % quartzites, and 28-32 wt % spent mullite bricks from anode baking furnaces, said refractory layer being compressed to an apparent density of no less than 2100 kg/m3. The invention increases the service life of an electrolytic cell, decreases fluoride salt consumption and broadens feedstock options by means of reusing waste products from aluminum factories and using natural materials, and slows the penetration of aggressive electrolysis components into the refractory layer.

MAGNESIA CARBON BRICK AND PRODUCTION METHOD THEREFOR

The present invention provides a magnesia carbon brick which does not contain graphite and has superior spalling resistance and corrosion resistance, and a method for producing the magnesia carbon brick. The magnesia carbon brick according to the present invention contains a total of 0.1-2.0 mass% of pitch and/or carbon black, a total of 0.1-1.0 mass% of aluminum and/or an aluminum alloy, 3.0-10.0 mass% of a magnesia having a particle size of less than 0.075 mm, and 87.0-96.0 mass% of a magnesia having a particle size of not less than 0.075 mm but less than 5 mm. The mass ratio of the magnesia having a particle size of not less than 1 mm but less than 5 mm with respect to the magnesia having a particle size of not less than 0.075 mm but less than 1 mm is 1.66-2.34. When an organic binder is added to a refractory raw material mixture which does not contain graphite, and the resultant mixture is kneaded, molded, and heated so as to obtain the magnesia carbon brick, the obtained magnesia carbon ...

CERAMIC BATCH AND ASSOCIATED PRODUCT FOR FIREPROOF APPLICATIONS

The invention relates to a ceramic batch for fireproof applications, containing between 83 and 99.5 wt. % of at least one refractory base product in a grain fraction of less than 8mm, and between 0.5 and 12 wt. % of at least one separate granulated SiO2 carrier, and possible remnants i.e. other constituents. The invention also relates to a product using said batch.

FIRED REFRACTORY PRODUCT

The invention relates to a baked refractory ceramic product. According to the invention, both shaped and unshaped products come within this generic term. Shaped products are those which have a defined shape, so that they can be ready-made at the manufacturer's premises. The shaped products include: bricks, nozzles, tubes, stoppers, plates, etc. The products categorized as unshaped products include those which are usually produced at the user's premises from a suitable material. These include bottoms of furnace assemblies which are cast from a material, but also repair materials, etc.

MOLTEN GRAINS OF TITANIUM SUB-OXIDES AND CERAMIC PRODUCTS COMPRISING SUCH GRAINS

L'invention se rapporte à des grains fondus constitués essentiellement de sous-oxydes de titane répondant à la formulation Ti n O 2n-1, dans lesquels lesdites phases sont principalement Ti5 O 9 ou Ti 6 O 11 ou un mélange de ces deux phases, les dites phases Ti5 O 9 et/ou Ti 6 O 11 représentant, au total, plus de 60 % du poids des grains,lesdits grains comprenant en outre moins de 30% en poids de Ti4O7.

SINTERED CERAMIC ARTICLE AND METHOD OF MANUFACTURING THE SAME

A sintered ceramic article which is to be joined to metal or form a composite member with metal comprises a metal compound or a metal separated and diffused in surface layers of particles of the sintered ceramic article. The sintered ceramic article is manufactured, for example, by forming a shaped article of ceramic powder, provisionally firing the shaped article, thereafter impregnating the provisionally fired article with a metal salt and/or a metal complex; and fully firing the provisionally fired article to produce a sintered ceramic article.

METHOD OF THE MANUFACTURE OF FIREPROOF ARTICLES AND FIREPROOF ARTICLE FOR THE BRICK LINING OF THE METALLURGICAL HEAT ENGINE SETS

CERAMIC STRUCTURE

СПОСОБ ПРОИЗВОДСТВА ТВЕРДЫХ СПЕЧЕННЫХ КЕРАМИЧЕСКИХ ЧАСТИЦ И ПОЛУЧЕННЫЕ ЭТИМ СПОСОБОМ ЧАСТИЦЫ

В изобретении предлагается способ приготовления твердых спеченных керамических частиц, которые являются главным образом круглыми и сферическими, из суспензии, в которую входят кальцинированный, некальцинированный или частично кальцинированный исходный материал, имеющий содержание оксида алюминия ориентировочно свыше 40%. Суспензию подвергают обработке при помощи процессов распылительной сушки, чтобы получить твердые, главным образом круглые и сферические спеченные частицы, имеющие средний размер ориентировочно свыше 200 мкм, объемную плотность ориентировочно свыше 1,40 г/см3 и кажущуюся удельную массу ориентировочно свыше 2,60.

ОГНЕУПОРНЫЙ КИРПИЧ ДЛЯ ДОННОЙ ЧАСТИ ФЛОАТ-ВАННЫ, СПОСОБ ЕЕ ИЗГОТОВЛЕНИЯ, ФЛОАТ-ВАННА И СПОСОБ ИЗГОТОВЛЕНИЯ ЛИСТОВОГО СТЕКЛА С ИСПОЛЬЗОВАНИЕМ ФЛОАТ-ВАННЫ

Предложен способ изготовления огнеупорного кирпича для донной части флоат-ванны путем использования глиносодержащего материала, который включает 30-45 мас. % Al2О3, 50-65 мас. % SiO2 и в котором содержание Na2О составляет 1 мас. % или менее, который характеризуется тем, что в указанный материал добавляют карбонат калия таким образом, что в готовом огнеупорном кирпиче для флоат-ванны содержание К2О составляет 2-4 мас. %. Огнеупорный кирпич для использования в донной части флоат-ванны, для производства листового стекла с использованием флоат-процесса, изготовляемого указанным выше способом, позволяет замедлить реакцию с Na2О в стекле, которое находится на его поверхности, и, таким образом, предотвратить образование эффекта отслаивания.

КЕРАМИЧЕСКАЯ СМЕСЬ ДЛЯ ПРОИЗВОДСТВА ОГНЕУПОРОВ И ПРОДУКТ НА ЕЕ ОСНОВЕ

В заявке описана керамическая смесь для производства огнеупоров, содержащая, по крайней мере, один огнеупорный основный компонент с размерной фракцией зерен менее в количестве от 83 до 99,5 мас. % и отдельный зернистый SiO2-наполнитель одного типа в количестве от 0,5 до 12 мас. %, а также возможны другие компоненты, на которые приходятся остальные. В заявке описан также продукт, изготовленный с применением указанной смеси.

ВИПАЛЕНИЙ ВОГНЕТРИВКИЙ КЕРАМІЧНИЙ ВИРІБ ТА СУМІШІ ДЛЯ ЙОГО ВИГОТОВЛЕННЯ

У заявці описаний випалений вогнетривкий керамічний виріб, а також суміш, з якої його можна виготовляти. У суміші для виготовлення подібного вогнетривкого виробу та у готовому випаленому керамічному вогнетривкому виробі використовуються шпінелі, які складаються з MgO та Аl2О3.

ПРОНИКНИЙ ВОГНЕТРИВКИЙ МАТЕРІАЛ ДЛЯ РОЗЛИВАЛЬНОГО СТАКАНА З ГАЗОВИМ ПРОДУВАННЯМ

Описано зв'язану смолою проникну композицію, яку застосовують як пористий елемент у розливальному стакані з нагнітанням газу. Проникна композиція є особливо корисною у зв'язаному смолою розливальному стакані з нагнітанням газу, який не має оболонки і який характеризується тим, що зв'язана смолою непроникна композиція заміняє металеву оболонку. В оптимальному варіанті зв'язані смолою композиції включають поглинач кисню для відокремлення кисню, доки кисень не досяг розплавленої сталі. Описано спосіб виготовлення розливального стакана, який включає спільне пресування стандартної зв'язаної смолою композиції навколо зв'язаної смолою проникної композиції. Пресовану деталь піддають термообробці для затверднення при температурах, нижчих ніж приблизно 800°С.

TITANIUM DIBORIDE GRANULES AS EROSION PROTECTION FOR CATHODES

METHOD FOR FORMATION OF PROPPANT MIXTURE, PROPPANT MIXTURE AND METHOD FOR PROPPING OF GEOLOGICAL FORMATION

REFRACTORY CERAMIC BATCH AND TO A REFRACTORY CERAMIC BRICK PRODUCED THEREFROM

THERMALLY-INSULATING AND THERMALLY-CONDUCTING CONCRETES ON AN ALUMINOPHOSPHATE BINDER (VARIANTS)

THERMALLY-INSULATING AND THERMALLY-CONDUCTING CONCRETES ON AN ALUMINOPHOSPHATE BINDER (VARIANTS)

СПОСОБ ИЗГОТОВЛЕНИЯ ОГНЕУПОРНЫХ ИЗДЕЛИЙ И ОГНЕУПОРНОЕ ИЗДЕЛИЕ ДЛЯ ФУТЕРОВКИ МЕТАЛЛУРГИЧЕСКИХ ТЕПЛОВЫХ АГРЕГАТОВ

Способ изготовления огнеупорных изделий для футеровки металлургических тепловых агрегатов с использованием литья и сушки изделия, при котором в литьевую массу включают частицы огнеупорного материала, отличающийся тем, что по меньшей мере 10 об.% частиц литьевой массы являются крупными частицами с размерами от 50 мм до 1/3-1/2 толщины изделия, а остальные частицы, по меньшей мере, частицы с размерами до 6 мм распределяют так, чтобы обеспечить плотную укладку литьевой массы, причем содержание воды в изделии перед сушкой не превышает 5 мас.% для того, чтобы изготавливаемые изделия имели относительную плотность (отношение плотности изделия к плотности, рассчитанной по удельным весам компонентов состава) не менее 0,87 и предпочтительнее не менее 0,90. Изделия, изготовленные в соответствии с изобретением, являются более долговечными и более дешевыми в производстве, чем обычные изделия.

СПОСОБ ПРОИЗВОДСТВА ТВЕРДЫХ СПЕЧЕННЫХ КЕРАМИЧЕСКИХ ЧАСТИЦ И ПОЛУЧЕННЫЕ ЭТИМ СПОСОБОМ ЧАСТИЦЫ

В изобретении предлагается способ приготовления твердых спеченных керамических частиц, которые являются главным образом круглыми и сферическими, из суспензии, в которую входят кальцинированный, некальцинированный или частично кальцинированный исходный материал, имеющий содержание оксида алюминия ориентировочно свыше 40%. Суспензию подвергают обработке при помощи процессов распылительной сушки, чтобы получить твердые, главным образом круглые и сферические спеченные частицы, имеющие средний размер ориентировочно свыше 200 мкм, объемную плотность ориентировочно свыше 1,40 г/см и кажущуюся удельную массу ориентировочно свыше 2,60.

CERAMIC PARTICLES WITH ADJUSTABLE PORES AND/OR LOCATION AND/OR SIZE OF MICROSPHERES AND METHOD OF THEIR MANUFACTURING

POROUS CARBONACEOUS MATRIX FOR STORING HEAT ENERGY

Procédé de préparation de mousses composites carbonées poreuses à partir de saccharose, de nitrate métallique et de poudre de graphite, les mousses obtenues et leur utilisation pour le stockage thermique.

CERAMICS HAS STRUCTURE PEROVSKITE, ITS USE AS ELECTRODE DEREFERENCE

CHROMIUM OXIDE PRODUCT.

Produit réfractaire fritté présentant un granulat lié par une matrice et comportant, en pourcentages en masse sur la base des oxydes, - plus de 40% d'oxyde de chrome Cr2O3, - moins de 50% d'oxyde d'aluminium Al2O3, - 1% ou plus d'oxyde de zirconium ZrO2 dont au moins 20% en masse est stabilisé sous la forme cubique et/ou quadratique, - 0,1% ou plus d'oxyde d'yttrium Y2O3, agissant comme stabilisant de l'oxyde de zirconium ZrO2, - moins de 1,9% d'oxyde d'hafnium HfO2, la teneur totale en oxydes de chrome, d'aluminium et de zirconium Cr2O3 + Al2O3 + ZrO2 étant supérieure à 70%.

REFRACTORY BLOCK SINTERS CONTAINING SILICON CARBIDE HAS BOND SILICON NITRIDE

Bloc réfractaire fritté à base de carbure de silicium (SiC) à liaison nitrure de silicium (Si3N4), notamment destiné à la fabrication d'une cuve d'électrolyse de l'aluminium, caractérisé en ce qu'il comporte, en pourcentages en poids au moins 0,05% de bore et/ou entre 0,05 et 1,2% de calcium.

PRODUCTION OF ENVIRONMENTALLY FRIENDLY CARBON-COMBINED FIREPROOF PRODUCTS ACCORDING TO A COLD MIXING METHOD

A Zirconia Sintered Body and a Method for Producing the Same

PROCESSO PARA PRODUCAO DE UM MATERIAL REFRATARIO,MATERIAIS REFRATARIOS RESISTENTES A CORROSAO;E MISTURA ADEQUADA PARA SER MOLDADA E QUEIMADA PARA FORMAR UM MATERIAL REFRATARIO

aglomerados de nitreto de boro, método de produção e uso dos mesmos

SILICEOUS COMPOSITION AND METHOD FOR OBTAINING SAME

ALPHA-BETA SIALON BALLISTIC CERAMIC ARMOR

A SiAlON ceramic armor made from a starting powder mixture. The ceramic armor contains between about 60 weight percent and about 98 weight percent alpha SiAlON phase that contains an alpha SiAlON-bound rare earth element and between about 2 weight percent and about 40 weight percent of a beta SiAlON phase of the formula Si6-zAlzOzN8-z wherein the value of 'z' ranges between about 0.2 and about 1.0. The ceramic armor further comprising sintering aid residue present as a result of the starting powder mixture containing between about 4 weight percent and about 14 weight percent of an oxide of an alpha SiAlON-bound rare earth element. The ceramic armor has a fracture toughness (KIC) greater than about 6.00 M.Pa m½ and a Vickers hardness (HVN) equal to greater than about 17.5 GPa.

PROCESS FOR MANUFACTURING A THERMALLY AND/OR ELECTRICALLY CONDUCTING SOLID

The invention relates to a process for manufacturing a thermally and/or electrically conducting solid, in which: at least one doped aqueous dispersion is prepared, said dispersion comprising a mica power and at least one dopant powder, these being dispersed in a non-ionic aqueous liquid, each dopant being chosen from graphites, with the exception of unexpanded expandable graphites, the mica representing at least 5% by weight of the solid matter of the dispersion, the dopant(s) representing 1 to 95% by weight of the solid matter of the dispersion and a proportion of each dopant being chosen depending on the desired thermal and electrical conductivities; each doped aqueous dispersion undergoes a forming operation, the proportion by weight of solid matter in the dispersion having been chosen so as to obtain, in the case of the doped aqueous dispersion, a viscosity compatible with the forming technique used; and the doped aqueous dispersion is left to undergo form consolidation, by at least ...

COLOURED SINTERED PART

Particulate mixture having the following chemical composition, in percentages by weight on the basis of the oxides: - ZrO2 ≥ 10.0%; - 2% < Al2O3 ≤ 80%; - 2 to 20.0% of an oxide chosen from Y2O3, Sc2O3, MgO, CaO, CeO2, and mixtures thereof, the MgO + CaO content being less than 5.0%; - 0 to 18.0% of an oxide chosen from ZnO, lanthanide oxides except for CeO2, and mixtures thereof; - less than 12.0% of other oxides; said particulate mixture comprising a pigment, in an amount between 0.5 and 0.0%, made of a material chosen from - oxide(s) of perovskite structure, - oxides of spinel structure, - oxides of hematite structure E2O3, the element E being chosen from the group GE (1) formed by the mixtures of aluminium and chromium, the mixtures of aluminium and manganese, and mixtures thereof, - the oxides of rutile structure FO2, the element F being chosen from the group GF (1) formed by the mixtures of tin and vanadium, the mixtures of titanium and chromium and niobium, the mixtures of titanium ...

CERAMIC PARTICLES WITH CONTROLLED PORE AND/OR MICROSPHERE PLACEMENT AND/OR SIZE AND METHOD OF MAKING SAME

The present invention relates to lightweight high strength microsphere containing ceramic particles having controlled microsphere placement and/or size and microsphere morphology, which produces an improved balance of specific gravity and crush strength such that they can be used in applications such as proppants to prop open subterranean formation fractions. Proppant formulations are further disclosed which use one or more microsphere containing ceramic particles of the present invention. Methods to prop open subterranean formation fractions are further disclosed. In addition, other uses for the microsphere containing ceramic particles of the present invention are further disclosed, as well as methods of making the microsphere containing ceramic particles.

POROUS MATERIAL, HONEYCOMB STRUCTURE, AND PRODUCTION METHOD FOR POROUS MATERIAL

Provided is a porous material having high thermal shock resistance, and containing: aggregates; and a complex bonding material having mullite particles scattered in a cordierite being a bonding material, said mullite particles being reinforcing particles, that bonds the aggregates in a state in which pores are formed. The metal silicon content is less than 15% by mass; ideally the lower limit for the complex bonding material content relative to the total mass of the aggregates, the complex bonding material, and the metal silicon is 12% by mass and the upper limit for the complex bonding material content is 50% by mass; and ideally the lower limit for the mullite particle content relative to the total mass of the aggregates, the complex bonding material, and the metal silicon is 0.5% by mass, and the upper limit for the mullite particle content is 15% by mass.

DECORATIVE ARTICLE CONTAINING AN EQUIPPED, COLOURED AND SINTERED ZIRCONIA PART

The invention relates to a decorative article comprising a sintered part having the following chemical composition, in percentages by weight on the basis of the oxides: - ZrO2 ≥ 10.0%; - 2% < Al2O3 ≤ 80%; - 2 to 20.0% of an oxide chosen from Y2O3, Sc2O3, MgO, CaO, CeO2, and mixtures thereof, the MgO + CaO content being less than 5.0%; - 0 to 18.0% of an oxide chosen from ZnO, lanthanide oxides except for CeO2, and mixtures thereof; - less than 12.0% of other oxides; said particulate mixture comprising a pigment, in an amount between 0.5 and 0.0%, made of a material chosen from - oxide(s) of perovskite structure, - oxides of spinel structure, - oxides of hematite structure E2O3, the element E being chosen from the group GE (1) formed by the mixtures of aluminium and chromium, the mixtures of aluminium and manganese, and mixtures thereof, - the oxides of rutile structure FO2, the element F being chosen from the group GF (1) formed by the mixtures of tin and vanadium, the mixtures of titanium ...

POROUS HONEYCOMB FILTER AND METHOD FOR MANUFACTURE THEREOF

A porous honeycomb filter having a controlled pore size distribution which comprises a material containing cordierite as a primary crystal phase, characterized in that it has a pore size distribution in which the pore volume of the pores having a pore diameter of less than 10 μm is 15 % or less of the total pore volume, the pore volume of the pores having a pore diameter of 10 to 50 μm accounts for 75 % or more relative to the total pore volume, and the pore volume of the pores having a pore diameter of more than 50 μm is 10 % or less of the total pore volume. The porous honeycomb filter exhibits improved efficiency for capturing particulate contaminants and the like, and also can prevent the increase of pressure loss due to the clogging of pores thereof, in particular, when used in a diesel engine developed in recent years which adopts high pressure fuel injection, a common rail type device and the like.

Carbonates as relic pore formers in aluminum titanate

The disclosure relates to aluminum titanate-forming batch materials comprising inorganic batch components comprising at least one alkaline earth carbonate having a specified particle size distribution, methods of making ceramic bodies using the same, and ceramic bodies made in accordance with said methods.

CERAMIC POWDER

In the ceramic powder, the volume ratio of aggregated particles having a particle diameter larger than a reference particle diameter is 35 vol. % or more and the volume ratio when ultrasonic dispersion treatment for 10 minutes at an oscillation frequency of 19.5 kHz and an output power of 10 W is applied is 4 vol. % or less. The reference particle diameter is a particle diameter equivalent to a cumulative 0.1 vol. % diameter from the large diameter side when the ceramic powder is subjected to ultrasonic dispersion treatment for 3 minutes at an oscillation frequency of 19.5 kHz and an output power of 150 W.

Slurry for making ceramic insulation

A fibrous ceramic mat is molded from a slurry of ceramic fibers and/or ceramic microparticles and/or a metal. The mat is impregnated with a sol prior to drying. A catalyst for the sol is introduced into the mat to cause the sol to gel. The sol-gel binder forms bonds so that the mat is dimensionally stabilized. The mat is dried to produce the desired ceramic insulation that has preferably a consistent microstructure and a fully gelled sol-gel binder through its entire thickness. When a metal is used, it corrodes (i.e., oxidizes) or otherwise reacts to form a refractory binder that augments the sol and reduces the need to infuse sol incrementally to achieve strength. Using metal powder significantly reduces the cost of manufacture.

Insulation substrate for a semiconductor device

A Ceramic Bonding Copper (CBC) substrate used in semiconductor modules includes a ceramic plate having foil-shaped copper plates bonded to the ceramic plate by the direct copper bonding method. A circuit pattern is formed on one of the copper plates. The ceramic plate is fabricated by sintering at high temperature an alumina powder compact containing zirconia and one or more of the following additives: yttria, calcia, magnesia, and ceria. The flexural strength and the thermal conductivity of the alumnina ceramic plate of the invention are remarkably improved, facilitating a reduction in the thickness of the ceramic plate. The reduction in thickness of the CBC substrate further improves the ability of the semiconductor device to radiate heat and therefore increases the current carrying capability of the semiconductor device.

Grinding method for inorganic particulate material

A method of preparing a steep particle size inorganic particulate material includes grinding an aqueous suspension of an inorganic particulate material having a solids content of less than 35% and including a sub-effective amount of a dispersant for the inorganic particulate material. The method may further include dewatering the aqueous suspension to a solids content of at least 50% and dispersing the dewatered aqueous suspension by adding an additional amount of dispersant, and wherein, after grinding, the inorganic particulate material has a steepness factor above 35.

SOLID ELECTROLYTE, MANUFACTURING METHOD THEREOF, AND GAS SENSOR

A solid electrolyte includes partially stabilized zirconia in which a stabilizer forms a solid solution in zirconia. The partially stabilized zirconia includes at least monoclinic phase particles and cubic phase particles as crystal particles that configure the partially stabilized zirconia, and an abundance ratio of the monoclinic phase particle is 5 to 25% by volume. The partially stabilized zirconia includes stabilizer low-concentration phase particles of which concentration of the stabilizer at a particle center is equal to or less than 1 mol %, as the crystal particles. The stabilizer low-concentration phase particles have a particle-size distribution of number frequency thereof having a peak at which an average particle size is 0.6 to 1.0 μm, and a particle size at 10% of a cumulative number is 0.5 μm or greater, and of the overall low-concentration phase particles, 50% by volume or greater belong to the peak.

Methods of Calcining Particulate Material

Disclosed herein is a method of calcining particulate material, such as kaolin. The method comprises providing a feed mixture comprising a particulate material, such as hydrous kaolin, wherein at least a portion of the particulate feed is coated with a liquid fuel. The method further comprises heating the particulate feed mixture to calcine the particulate feed and burn the liquid fuel to form a calcined product. The liquid fuel coating can act as a secondary, indirect heat source for calcining. The overall calcining temperatures and/or times can be reduced as a result of adding the liquid fuel.

Lithium iron phosphate having an oxygen vacancy and doped in the position of Fe and method of quick solid phase sintering for the same

The present invention relates to a lithium ion cathode material lithium iron phosphate having an oxygen vacancy and doped in the position of Fe and a preparation method of quick micro-wave sintering for the same. The molecular formula of the product in present invention is expressed as LiFe1-x-aMeaMxPO4-yNz, wherein Me is one or more elements selected from Mg, Mn or Nd, and M is one or more elements selected from Li, Na, K, Ag or Cu; 0≤x≤0.1, 0 < a≤0.1, 0 < y≤0.5, 0≤z≤0.5, wherein x and z can not be 0 simultaneously. The quick micro-wave sintering preparation method in the present invention has advantages of high production efficiency, low energy consumption, good batch stability of the prepared product, excellent rate performance and cycle performance.

FIRE BRICK FOR BOTTOM PORTION OF FLOAT BATH AND METHOD FOR PRODUCTION THEREOF

Honeycomb structure comprising an outer cement skin and a cement therefor

Disclosed is a honeycomb catalyst support structure comprising a honeycomb body and an outer layer or skin formed of a cement comprising an amorphous glass powder with a multimodal particle size distribution applied to an exterior surface of the honeycomb body. The multimodal particle size distribution is achieved through the use of a first glass powder having a first median particle size and at least a second glass powder having a second median particle size. In some embodiments, the first and second glass powders are the same amorphous glass consisting of fused silica. The cement may further include a fine-grained, sub-micron sized silica in the form of colloidal silica. The cement exhibits a coefficient of thermal expansion less than 15×10 −7 /° C., and preferably about 5×10 −7 /° C. after drying.

Sodium niobate powder, method of manufacturing a sodium niobate powder, plate-like particle, method of manufacturing a plate-like particle, and method of manufacturing an oriented ceramics

Provided are methods of manufacturing an oriented ceramics containing sodium niobate and a raw material thereof. Specifically, provided is a sodium niobate powder, including cuboidal sodium niobate particles having an average side length of 0.1 μm or more to 100 μm or less, at least one face of the cuboid including a (100) plane in pseudo-cubic notation, in which the sodium niobate powder has a perovskite single-phase structure.

Processes and materials for casting and sintering green garnet thin films

Set forth herein are processes and materials for making ceramic thin films by casting ceramic source powders and precursor reactants, binders, and functional additives into unsintered thin films and subsequently sintering the thin films under controlled atmospheres and on specific substrates.

Rare earth aluminate sintered compact and method for producing rare earth aluminate sintered compact

A rare earth aluminate sintered compact including rare earth aluminate phosphor crystalline phases and voids, wherein an absolute maximum length of 90% or more by number of rare earth aluminate phosphor crystalline phases is in a range from 0.4 μm to 1.3 μm, and an absolute maximum length of 90% or more by number of voids is in a range from 0.1 μm to 1.2 μm.

Method for producing hermetic package

A technical object of the present invention is to devise a method by which bonding strength between an element base and a sealing material layer can be increased without thermal degradation of a member to be housed inside, to thereby improve long-term reliability of a hermetic package. A method of producing a hermetic package of the present invention includes the steps of: preparing a ceramic base and forming a sealing material layer on the ceramic base; preparing a glass substrate and arranging the ceramic base and the glass substrate so that the glass substrate is brought into contact with the sealing material layer on the ceramic base; and irradiating the sealing material layer with laser light from a glass substrate side to seal the ceramic base and the glass substrate with each other through intermediation of the sealing material layer, to thereby provide a hermetic packages.

COMPOSITION AND METHOD TO FORM DISPLACEMENTS FOR USE IN METAL CASTING

A method to form a displacement includes disposing a powder blend (comprising a plurality of ground ceramic particles and a plurality of ground resin particles) into a mold, densifying the powder blend while in the mold, heating the mold to form a first displacement, impregnating said first displacement with a polymer precursor compound to form a second displacement, and heating the second displacement to form a third displacement. 1. A method for forming a displacement for a metallic casting , the method comprising:disposing a powder blend into a mold, the powder blend comprising a plurality of ground ceramic particles and a plurality of ground resin particles;densifying said powder blend while in said mold;heating said mold to form a first displacement;impregnating said first displacement with a polymer precursor compound to form a second displacement; andheating said second displacement at about 1000° C. for about 24 hours to form a third displacement.2. The method of claim 1 , wherein said impregnating comprises:immersing said first displacement in a liquid mixture comprising said polymer precursor compound;monitoring a weight increase of said first displacement;when a weight of said first displacement no longer increases with time, determining that said second displacement is formed.3. The method of claim 1 , further comprising:heating said first displacement at about 1000° C. for about 24 hours before the impregnating said first displacement with the polymer precursor compound to form the second displacement.4. The method of claim 1 , wherein the disposing includes disposing the power blend comprising the plurality of ground ceramic particles with a maximum dimension claim 1 , of a ground ceramic particle claim 1 , of less than about 150 microns.5. The method of claim 1 , wherein the disposing includes disposing the power blend comprising the plurality of ground resin particles with a maximum dimension claim 1 , of a ground resin particle claim 1 , of less ...

Roofing granules with high solar reflectance, roofing products with high solar reflectance, and processes for preparing same

A solar heat-reflective roofing product includes a base sheet, and solar heat-reflective roofing granules on top of the base sheet. The granules have a base particle with a flake-like geometry covered by a uniform coating layer. The coating layer has a thickness of at least one mil and includes a coating binder and at least one solar heat-reflective pigment. The solar heat-reflective pigment provides a solar heat reflectance of greater than 70 percent to the granules and the roofing product. Roofing products including roofing shingles and roofing membranes are described.

POWDER FOR A THERMAL BARRIER

A powder of fused particles. The powder includes, in percentage by weight based on the oxides, more than 98% of a stabilized oxide selected from stabilized zirconium oxides, stabilized hafnium oxides and mixtures thereof, the stabilized oxide being stabilized by a stabilizer selected from the oxides of Y, Ca, Ce, Sc, Mg, In, La, Gd, Nd, Sm, Dy, Er, Yb, Eu, Pr, and Ta, called “stabilizing oxides”, and the mixtures of these stabilizing oxides. The powder has: a median particle size Dunder 15 μm, a 90th percentile of the particle sizes, D, under 30 μm, and a size dispersion index (D−D)/Dbelow 2, and a relative density above 90%. The percentiles Dof the powder are the particle sizes corresponding to the percentages, by number, of n %, on the cumulative distribution curve of the powder particle size and the particle sizes are classified by increasing order. 1. A powder of fused particles ,said powder containing, in percentage by weight based on the oxides, more than 98% of a stabilized oxide selected from stabilized zirconium oxides, stabilized hafnium oxides and mixtures thereof, the stabilized oxide being stabilized by a stabilizer selected from the oxides of Y, Ca, Ce, Sc, Mg, In, La, Gd, Nd, Sm, Dy, Er, Yb, Eu, Pr, and Ta, called “stabilizing oxides”, and the mixtures of these stabilizing oxides, [{'sub': 50', '90', '90', '10', '10, 'a median particle size Dunder 15 μm, a 90th percentile of the particle sizes, D, under 30 μm, and a size dispersion index (D−D)/Dbelow 2;'}, 'a relative density above 90%,, 'said powder having{'sub': 'n', 'the percentiles Dof the powder being the particle sizes corresponding to the percentages, by number, of n %, on the cumulative distribution curve of the powder particle size, the particle sizes being classified by increasing order.'}2. The powder as claimed in claim 1 , having:a percentage by number of particles having a size less than or equal to 5 μm that is greater than 5%, and/or{'sub': '50', 'a median size of the particles Dbelow ...

Highly Translucent Zirconia Material, Device, Methods Of Making The Same, And Use Thereof

A zirconia ceramic material for use in dental applications is provided comprising an yttria-stabilized zirconia material stabilized with 5 mol % yttria to 8 mol % yttria, and methods for making a sintered body from the ceramic material. The zirconia ceramic materials exhibit both enhanced translucency and a flexural strength of at least 300 MPa, or at least 500 MPa, when fully sintered. 1. A ceramic material comprisinga yttria-stabilized zirconia ceramic material, stabilized by 5 mol % to 7.2 mol % yttria, wherein the ceramic material formed as a sintered ceramic body has a flexural strength greater than 300 MPa, and a transmittance greater than 62% at 700 nm (when measured on a 1 mm thick fully sintered ceramic body).2. The ceramic material of claim 1 , wherein the sintered ceramic body comprises between 63 and 77% transmittance.3. The ceramic material of claim 1 , wherein the sintered ceramic body has a fracture toughness greater than 1.5 MPa·m.4. The ceramic material of claim 1 , wherein the sintered ceramic body has an average size between 1 and 20 μm.5. The ceramic material of claim 1 , wherein the ceramic material comprises between 5.1 mol % and 7.1 mol % yttria claim 1 , and wherein the sintered ceramic body comprises between 63% and 77% transmittance at 700 nm.6. The ceramic material of claim 5 , wherein the sintered ceramic body comprises a flexural strength greater than 500 MPa.7. The ceramic material of claim 1 , wherein the ceramic material comprises between 5.2 mol % and 7.2 mol % yttria claim 1 , and wherein the sintered ceramic body comprises between 63 and 72% transmittance at 700 nm.8. The ceramic material of claim 1 , wherein the ceramic material comprises between 5.8 mol % and 6.3 mol % yttria and wherein the sintered ceramic body comprises between 63 and 74% transmittance at 700 nm.9. The ceramic material of claim 8 , wherein the sintered body comprises the fracture toughness is greater than 2 MPa·m.10. The ceramic material of claim 1 , wherein ...

Highly Translucent Zirconia Material, Device, Methods of Making the Same, and Use Thereof

A zirconia ceramic material for use in dental applications is provided comprising an yttria-stabilized zirconia material stabilized with 5 mol % yttria to 8 mol % yttria, and methods for making a sintered body from the ceramic material. The zirconia ceramic materials exhibit both enhanced translucency and a flexural strength of at least 300 MPa, or at least 500 MPa, when fully sintered. 1. A ceramic material comprising:a yttria-stabilized zirconia ceramic material stabilized by 5.0 mol % to 7.1 mol % yttria,wherein a bisqued body comprising the ceramic material comprises less than or equal to 1% monoclinic phase, andwherein, after sintering the bisque body to a sintered form, the ceramic material comprises at least 98% theoretical density and has an average grain size greater than or equal to 8 μm.2. The ceramic material of claim 1 , wherein the bisqued body has a hardness value of less than or equal to 0.9 GPa.3. The ceramic material of claim 1 , comprising 5.2 mol % to 6.3 mol % yttria claim 1 , and wherein claim 1 , after sintering claim 1 , the ceramic material has a flexural strength greater than or equal to 500 MPa.4. The ceramic material of wherein claim 3 , after sintering claim 3 , the ceramic material has an average grain size between 8 μm and 20 μm.5. The ceramic material of wherein claim 3 , after sintering claim 3 , the ceramic material has an average grain size between 8 μm and 15 μm.6. The ceramic material of claim 1 , wherein the yttria-stabilized zirconia ceramic material is shaded by a coloring agent comprising at least one metal selected from Fe claim 1 , Co claim 1 , Cu claim 1 , Pr claim 1 , Tb claim 1 , Cr or Er.7. The ceramic material of claim 6 , wherein the yttria-stabilized zirconia ceramic material is stabilized by 5.2 mol % to 7.1 mol % yttria and wherein claim 6 , after sintering claim 6 , the ceramic material comprises a flexural strength greater than or equal to 500 MPa.8. The ceramic material of wherein claim 1 , after sintering claim ...

All solid battery, manufacturing method of the same and solid electrolyte paste

An all solid battery includes: a solid electrolyte layer including phosphoric acid salt-based solid electrolyte; a first electrode that is formed on a first main face of the solid electrolyte layer; and a second electrode that is formed on a second main face of the solid electrolyte layer, wherein a D50% grain diameter of crystal grains of the phosphoric acid salt-based solid electrolyte is 0.5 μm or less, wherein a D90% grain diameter of the crystal grains is 3 μm or less.

Systems and methods for synthesis of spheroidized metal powders

Disclosed herein are embodiments of systems and method for processing feedstock materials using microwave plasma processing. Specifically, the feedstock materials disclosed herein pertain to metal powders. Microwave plasma processing can be used to spheroidize the metal powders and form metal nitride or metal carbide powders. The stoichiometry of the metal nitride or metal carbide powders can be controlled by changing the composition of the plasma gas and the residence time of the feedstock materials during plasma processing.

Method for preparing continuous fiber-reinforced ceramic matrix composite by flash sintering technology

The present disclosure discloses a method for preparing a continuous fiber-reinforced ceramic matrix composite by flash sintering technology, including: placing a continuous ceramic fiber preform in a mold, adding a nano-ceramic powder, and subjecting the resultant to mechanical oscillation and press forming in sequence to obtain a green body; heating the green body to a preset temperature and applying an electric field with a preset electric field intensity, until occurrence of flash sintering; and converting a power supply from a constant voltage state to a constant current state, holding at the temperature and cooling to obtain the continuous fiber-reinforced ceramic matrix composite.

CERAMIC MATERIAL

Raw materials containing impurities for producing transparent ceramics and methods of producing the transparent ceramics and the raw materials, as well as the transparent ceramics produced. 17.-. (canceled)8. A method for producing the ceramic material comprising the steps of:calcining a hydrotalcite to obtain a metal oxide and form the ceramic material;wherein the ceramic material comprises the metal oxide, andwherein the ceramic material is used for producing transparent ceramics with an RIT value >40% at 300 nm, 600 nm, or 1500 nm wavelength of light.9. A method for producing a transparent ceramic material comprising the steps of:calcining a hydrotalcite to obtain a metal oxide to form the ceramic material, andproducing a transparent ceramic with said ceramic material with an RIT value >40% at 300 nm, 600 nm, or 1500 nm wavelength of light. The invention relates to ceramic materials; in particular the invention relates to ceramic materials for producing transparent ceramics.Transparent ceramics and their preparation are known from the prior art. DE 10 2004 004 259 B3 discloses a polycrystalline ceramic having a high mechanical strength, for example, which has a real in-line transmittance (RIT) of more than 75% of the theoretical maximum value for a 0.8 mm thick polished plate and at wavelengths between 600 and 650 nm, wherein the average grain size D is in the range between 60 nm and 10 μm.The transparency of polycrystalline ceramic discs is influenced by various factors. Thus naturally a material must be used that has only extremely low light absorption. In addition, the transparency of polycrystalline ceramic discs substantially depends on light scattering, which results on the one hand from the crystal structure and on the other from the microstructure of the ceramic body. Materials with cubic crystal systems are preferably used, because no birefringence occurs. Furthermore, the methods for producing transparent ceramics are optimized so that the smallest ...

Boron Nitride Agglomerates, Method of Production Thereof and Use Thereof

The invention relates to boron nitride agglomerates, comprising lamellar, hexagonal boron nitride primary particles, which are agglomerated with one another with a preferred orientation, the agglomerates formed being flake-shaped. 119-. (canceled)20. Boron nitride agglomerates , comprising: lamellar , hexagonal boron nitride primary particles , the primary particles having an average particle size of 0.5 to 15 μm , in a binder free , flake-shape agglomerate formed with an essentially parallel alignment of the lamellae; the flake-shaped agglomerate having an average size dup to 3 mm; and wherein the proportion of forming surface , relative to the total surface of the flake-shaped agglomerates , is at least 10%. The present invention relates to boron nitride agglomerates, comprising lamellar, hexagonal boron nitride, a method of production thereof and the use of said agglomerates as filler for polymers and for the hot pressing of boron nitride sintered compacts.Hexagonal boron nitride powder can, owing to its good thermal conductivity, be used as filler for polymers in applications simultaneously requiring good electrical insulation capability of the filler used. Furthermore, boron nitride powder is also used as sintering powder for hot pressing, for applications in metallurgy. Moreover, hexagonal boron nitride powder is used in cosmetic preparations, as a lubricant, as a parting compound in metallurgy and as raw material for the production of cubic boron nitride.Hexagonal boron nitride powder is synthesized industrially by nitriding boric acid in the presence of a source of nitrogen. Ammonia can be used as the source of nitrogen, and then usually calcium phosphate is used as the carrier material for the boric acid. An organic source of nitrogen such as melamine or urea can also be reacted under nitrogen with boric acid or borates. Nitriding is usually carried out at temperatures from 800 to 1200° C. The boron nitride then obtained is largely. amorphous, and it is ...

PARTICULATE MIXTURE COMPRISING RECYCLED ALUMINIUM SILICATE MATERIAL

A particulate mixture, suitable for use in ceramic article production, wherein the mixture includes from 30 wt % to 80 wt % recycled aluminium silicate material. The particulate mixture has a particle size distribution such that: (i) the dparticle size is from 10 μm to 30 μm; (ii) the dparticle size is less than 40 μm; and (iii) the dparticle size is less than 60 μm. 1. A particulate mixture , suitable for use in ceramic article production , wherein the mixture comprises from 30 wt % to 80 wt % recycled aluminium silicate material , wherein the particulate mixture has the following particle size distribution:{'sub': '50', '(i) a dparticle size is from 10 μm to 30 μm;'}{'sub': '70', '(ii) a dparticle size is less than 40 μm; and'}{'sub': '98', '(iii) a dparticle size is less than 60 μm.'}2. A particulate mixture according to claim 1 , wherein the recycled aluminium silicate material comprises:(a) from 0.5% to 8.0% combustible carbon; and(b) from 0.5% to 12.0% iron oxide.3. A particulate mixture according to claim 1 , wherein the particulate mixture comprises from 40 wt % to 70 wt % recycled aluminium silicate material.4. A particulate mixture according to claim 1 , wherein the recycled aluminium silicate material has the following particle size distribution:{'sub': '50', '(i) the dparticle size is from 10 μm to 30 μm;'}{'sub': '70', '(ii) the dparticle size is less than 40 μm; and'}{'sub': '98', '(iii) the dparticle size is less than 60 μm.'}5. A particulate mixture according to claim 1 , wherein the recycled aluminium silicate has the following particle size distribution:{'sub': '50', '(i) the dparticle size is from 10 μm to 25 μm;'}{'sub': '70', '(ii) the dparticle size is less than 30 μm; and'}{'sub': '98', '(iii) the dparticle size is less than 55 μm.'}6. A particulate mixture according to claim 1 , wherein the mixture comprises from greater than 50 wt % to 80 wt % recycled aluminium silicate material.7. A particulate mixture according to claim 1 , wherein the ...

Alumina sintered body production method and alumina sintered body

A method for producing an alumina sintered body, comprising: molding an alumina powder to obtain an alumina article, the alumina powder comprising alumina particles having a particle diameter of not less than 0.1 μm and less than 1 μm, and alumina particles having a particle diameter of not less than 1 μm and less than 100 μm; forming a carbon powder-containing layer on a surface of the alumina article to obtain a laminate body; and irradiating a surface of the carbon powder-containing layer of the laminate body with a laser light to form a transparent alumina sintered portion.

Powder material

A powder material for additive manufacturing providing an improved microstructure and shape of a product including particles, wherein at most 25 wt.-% of the particles provide a particle size differing more than 20% from the D50 based on the value of the D50. A method of additive manufacturing includes the step of manufacturing a product from this powder material or repairing a product utilizing this powder material.

Armor component comprising a titanium carbonitride phase

An armor component and manufacturing thereof which includes a ceramic hard material, where the hard material has a bulk density that is lower than 3.5 g/cm 3 and includes grains of ceramic material having a Vickers hardness that is higher than 15 GPa, bonded by an bonding matrix, the bonding matrix representing between 20 and 80% by weight of the constituent hard material of the ceramic body, and including alumina, silicon nitride and TiC x N 1-x crystalline phases, wherein x is included between 0 and 1.

Process for additive manufacturing of parts by melting or sintering particles of powder(s) using a high-energy beam with powders adapted to the targeted process/material pair

A method of fabricating parts out of metallic, intermetallic, ceramic, ceramic matrix composite, or metal matrix composite material with discontinuous reinforcement, includes melting or sintering powder particles by means of a high-energy beam. The powder used is a single powder of particles that present sphericity lying in the range 0.8 to 1.0 and of form factor lying in the range 1 to √2, each powder particle presenting substantially identical mean composition, and the grain size distribution of the particles of the powder is narrowed around the mean diameter value d50% in such a manner that: (d90%−d50%)/d50%≦0.66; and (d50%−d10%)/d50%≦0.33; with a “span”: (d90%−d10%)/d50%≦1.00.

Multilayer ceramic capacitor

A multilayer ceramic capacitor includes: a ceramic body in which dielectric layers and first and second internal electrodes are alternately stacked; and first and second external electrodes formed on an outer surface of the ceramic body and electrically connected to the first and second internal electrodes, respectively. In a microstructure of the dielectric layer, dielectric grains are divided by a dielectric grain size into sections each having an interval of 50 nm, respectively, a fraction of the dielectric grains in each of the sections within a range of 50 nm to 450 nm is within a range of 0.025 to 0.20, and a thickness of the dielectric layer is 0.8 μm or less.

PROPPANTS AND ANTI-FLOWBACK ADDITIVES INCLUDING KAOLIN CLAY

A method of making a sintered ceramic proppant may include providing a kaolin clay. The kaolin clay may include an AlOcontent no greater than about 46% by weight, and a KO content no greater than 0.1% by weight. The kaolin clay may have a particle size distribution such that greater than 70% of the particles have an equivalent spherical diameter of less than 0.5 microns as measured by Sedigraph, and a shape factor less than about 18. The method may further include blunging the kaolin clay, agglomerating the kaolin clay, and sintering the agglomerated kaolin clay to produce a sintered ceramic proppant. The kaolin clay may have an A-bob Hercules viscosity of at least about 3,300 rpm at 18 kilodyne-cm and 70% solids. 162-. (canceled)63. A method of making a sintered ceramic proppant , the method comprising: [{'sub': 2', '3, 'an AlOcontent of not greater than about 46% by weight, and'}, {'sub': '2', 'a KO content no greater than 0.1% by weight,'}], 'providing a kaolin clay comprising'} a particle size distribution of particles of the kaolin clay such that greater than 70% of the particles have an equivalent spherical diameter of less than 0.5 microns as measured by Sedigraph, and', 'a shape factor less than about 18;, 'and having'}blunging the kaolin clay;agglomerating the kaolin clay; andsintering the agglomerated kaolin clay to produce a sintered ceramic proppant.64. The method of claim 63 , wherein the kaolin clay has an AlOcontent ranging from about 42% by weight to about 46% by weight.65. The method of claim 64 , wherein the kaolin clay has an AlOcontent ranging from about 43% by weight to about 45% by weight.66. The method of claim 63 , wherein the kaolin clay comprises a blend of a first kaolin clay comprising less than about 0.1% by weight KO and a second kaolin clay comprising greater than about 0.1% by weight KO claim 63 , wherein the blend comprises at least about 10% by weight of the first kaolin clay.67. The method of claim 66 , wherein the blend comprises ...

Spherical pellets containing common clay particulate material useful as a proppant in hydraulic fracturing of oil and gas wells

Ceramic propping agents include a plastic clay, aluminosilicate network modifier, strength enhancing agent, and binder. Usable strength enhancing agents can include nepheline materials having 0.1 to 5 percent iron oxide by weight. A resin coating can be used to encapsulate particles of the ceramic propping agent. The propping agent can be produced by grinding the components to the same approximate particle size, nucleating the particles by adding water, growing the resulting spherical pellets by adding additional particles that adhere to the surface of the spherical pellets, and vitrifying the pellets to form the propping agent.

SILICON CARBIDE POWDER, AND PREPARATION METHOD THEREFOR

A method for preparing a silicon carbide power includes collecting a mixture powder by mixing a carbon source and a silicon source, synthesizing a first silicon carbide powder by heating the mixture powder, forming an agglomerated powder by agglomerating the first silicon carbide powder, and forming a second silicon carbide powder, which has larger particles than the first silicon carbide powder, by heating the agglomerated powder. 1. A silicon carbide powder comprising:a granular silicon carbide powder having an alpha phase, wherein a particle size (D50) thereof ranges from 100 μm to 10 mm, a distribution (D90/D10) thereof ranges from 1 to 10, nitrogen is included at 500 ppm or less, and oxygen is included at 1,000 ppm or less.2. The silicon carbide powder of claim 1 , wherein the granular silicon carbide powder having the alpha phase has the particle size (D50) in a range of 100 μm to 5 mm claim 1 , the distribution (D90/D 10) in a range of 1 to 5 claim 1 , and the oxygen in a range of 500 ppm or less.3. The silicon carbide powder of claim 2 , wherein the granular silicon carbide powder having the alpha phase has the particle size (D50) in a range of 100 μm to 1 mm claim 2 , the distribution (D90/D10) in a range of 1 to 3 claim 2 , and the oxygen in a range of 500 ppm or less. The invention relates to a silicon carbide powder and a method of preparing the same, and more particularly, to a method of preparing a granular silicon carbide powder using a particulate silicon carbide powder.Silicon carbide (SiC) has a high-temperature strength and excellent wear-resistance, oxidation-resistance, corrosion-resistance, creep-resistance, and the like. Silicon carbide is, divided into a β-phase having a cubic crystalline structure and an α-phase having a hexagonal crystalline structure. The β-phase is stable at a temperature in a range of 1,400 to 1,800° C. and the a-phase is formed at 2,000° C. or more.Silicon carbide has been widely used as a material for an industrial ...

Dense sintered product

Sintered product having a chemical analysis such that, in mass percentages: SiO 2 content is greater than 0.2% and less than 2%, and CaO content is greater than 0.1% and less than 1.5%, and MgO content is less than 0.3%, and alumina and other elements being the complement at 100%, the content of other elements being less than 1.5%, having a relative density greater than 90%, comprising, for more than 90% of its volume, a stack of ceramic platelets ( 10 ) laid flat, all of said platelets having an average thickness less than 3 μm, more than 95% by number of said platelets each containing more than 95% by mass of alumina, having a width (l) greater than 81 mm.

PROCESSES AND MATERIALS FOR CASTING AND SINTERING GREEN GARNET THIN FILMS

Set forth herein are processes and materials for making ceramic thin films by casting ceramic source powders and precursor reactants, binders, and functional additives into unsintered thin films and subsequently sintering the thin films under controlled atmospheres and on specific substrates. 1118.-. (canceled)119. A method for sintering a green tape , the method comprising: 'wherein the at least one source powder is a lithium-stuffed garnet powder;', '(a) providing at least one source powder;'}(b) modifying the at least one source powder to prepare a modified source powder using an aprotic solvent;(c) providing a slurry of the modified source powder; wherein the green tape comprises the source powder, an aprotic solvent, a binder, and a dispersant;', 'and', 'wherein the amount of source powder in the green tape is at least 75%, 80%, 85%, or 90% by weight; and', {'sub': '50', 'wherein modified source powder has a particle size distribution having a dof 50 nm to 5 μm;'}], '(d) casting the slurry to form a green tape;'}(e) drying the green tape; and(f) sintering the green tape.120. The method of claim 119 , wherein the amount of source powder in the green tape is at least 75% claim 119 , 80% claim 119 , 85% claim 119 , or 90% by weight.121. The method of claim 119 , wherein the at least one source powder is LiZrLaOyAlO; wherein x ranges from 5 to 9; and y ranges from 0 to 1.122. The method of claim 119 , wherein the modifying the at least one source powder comprises modifying the particle size distribution of the at least one source powder.123. The method of claim 122 , wherein the particle size distribution claim 122 , after the modifying step claim 122 , has a dof about 100 nm claim 122 , 200 nm claim 122 , 300 nm claim 122 , 400 nm claim 122 , 1 μm claim 122 , 2 μm claim 122 , 3 μm claim 122 , or 4 μm.124. The method of claim 119 , wherein the surface area of the at least one source powder is increased to at least 5 m/g during the modifying the at least one source ...

Process for Making Carbon Articles by Three-Dimensional Printing

Methods for making printed articles from carbon powder are described. Three-dimensional binder jet printing is used to make a printed article from the carbon powder. Methods are also provided for the production of near net shaped carbonized printed articles and graphitized printed articles. 1. A process for making a carbon article comprising the steps of:(a) providing a carbon powder;(b) depositing a layer of the powder;(c) ink-jet depositing a binder onto the layer in a pattern that corresponds to a slice of the article;(d) repeating the steps (b) and (c) for additional layers of the powder and additional patterns, each of which additional patterns corresponds to an additional slice of the article, until a powder version of the article is completed; and(e) curing the powder version of the article at a temperature at which at least a portion of the binder cures.2. The method of claim 1 , wherein the carbon powder is selected from the group consisting of natural graphite claim 1 , synthetic graphite claim 1 , glassy carbon claim 1 , amorphous carbon claim 1 , coal claim 1 , petroleum coke claim 1 , petroleum pitch.3. The method of claim 1 , wherein the binder in an organic binder.4. The method of claim 1 , wherein the powder has an average particle size ranging from about 20 microns to about 150 microns.5. The method of claim 1 , wherein the step of depositing a layer of powder provides a powder packing density of at least about 40%.6. A process for making a carbon article comprising the steps of:(a) providing a carbon powder;(b) depositing a layer of the powder;(c) ink-jet depositing a binder onto the layer in a pattern that corresponds to a slice of the article;(d) repeating the steps (b) and (c) for additional layers of the powder and additional patterns, each of which additional patterns corresponds to an additional slice of the article, until a powder version of the article is completed; and(e) carbonizing the powder version of the article at a temperature at ...

Porous ceramic article and method of manufacturing the same

The present disclosure relates to porous ceramic articles and a method of making the same. The porous ceramic articles have microstructure of sinter bonded or reaction bonded large pre-reacted particles and pore network structure exhibiting large pore necks. The method of making the porous ceramic articles involves using pre-reacted particles having one or more phases. A plastic ceramic precursor composition is also disclosed. The composition includes a mixture of at least one of dense, porous, or hollow spheroidal pre-reacted particles and a liquid vehicle.

Ceria-zirconia-based composite oxide and method for producing same, and exhaust gas purification catalyst including ceria-zirconia-based composite oxide

A ceria-zirconia-based composite oxide containing a composite oxide of ceria and zirconia is provided, in which primary particles having a particle diameter of 1.5 to 4.5 μm account for, on a particle number basis, at least 50% of all primary particles in the ceria-zirconia-based composite oxide, and the molar ratio of cerium to zirconium in the ceria-zirconia-based composite oxide is between 43:57 and 55:45.

BATCH COMPOSITIONS COMPRISING SPHEROIDAL PRE-REACTED INORGANIC PARTICLES AND SPHEROIDAL PORE-FORMERS AND METHODS OF MANUFACTURE OF HONEYCOMB BODIES THEREFROM

A batch composition containing pre-reacted inorganic spheroidal particles and pore- former spheroidal particles. The pre-reacted inorganic spheroidal particles have a particle size distribution wherein 10 μm≤DI<50 μm, and DIb≤2.0, and the pore-former spheroidal particles have a particle size distribution wherein 0.40 DP≤DI<0.90 DP, and DPb≤1.32, wherein DI50 is a median particle diameter of the distribution of pre-reacted inorganic spheroidal particles, DPis a median particle diameter of the pore-former particle size distribution, DIb is a breadth factor of the pre-reacted particle size distribution of the pre- reacted inorganic spheroidal particles, and DPb is a breadth factor of the pore-former particle size distribution. Also, green honeycomb bodies manufactured from the batch compositions, and methods of manufacturing a honeycomb body using the batch compositions, are provided. 1. A batch mixture , comprising: [{'br': None, 'sub': '50', '10 μg≤DI≤50 μg, and'}, {'br': None, 'DIb≤2.0; and'}], 'pre-reacted inorganic spheroidal particles having a pre-reacted particle size distribution wherein [{'br': None, 'sub': 50', '50', '50, '0.40 DP≤DI≤0.90 DP, and'}, {'br': None, 'DPb≤1.32, and'}], 'pore-former spheroidal particles having a pore-former particle size distribution wherein{'sub': 50', '50, 'wherein DIis a median particle diameter of the pre-reacted particle size distribution of the pre-reacted inorganic spheroidal particles, DPis a median particle diameter of the pore-former particle size distribution of the pore-former spheroidal particles, DIb is a breadth factor of the pre-reacted particle size distribution of the pre-reacted inorganic spheroidal particles, and DPb is a breadth factor of the pore-former particle size distribution of the pore-former spheroidal particles.'}2. The batch mixture of comprising less than 20% of fine inorganic particles based on a total weight of the pre-reacted inorganic spheroidal particles claim 1 , wherein the fine inorganic ...

Porous Ceramic Particles and Method of Forming Porous Ceramic Particles

A porous ceramic particle may have a particle size of at least about 200 microns and not greater than about 4000 microns. The porous ceramic particle may further have a particular cross-section that may include a core region and a layered region overlying the core region. The layered region may include overlapping layered sections surrounding the core region. The core region may include a core region composition and a first layered section may include a first layered section composition. The first layered section composition may be different than the core region composition.

LiCoO2-CONTAINING SINTERED COMPACT, LiCoO2-CONTAINING SPUTTERING TARGET, AND LiCoO2-CONTAINING SINTERED COMPACT MANUFACTURING METHOD

In the sintered compact containing LiCoO2, an average grain size is 10 to 40 μm, a relative density is 90% or more, and a resistivity is 100 Ω·cm or less.

Ceramic honeycomb structure

A ceramic honeycomb structure having pluralities of flow paths partitioned by porous cell walls, (a) the cell walls having porosity of 50-63%; and (b) in a pore diameter distribution in the cell walls measured by mercury porosimetry, (i) pore diameters at cumulative pore volumes corresponding to particular percentages of the total pore volume being within specific ranges and having specific relationships; (ii) the difference between a logarithm of the pore diameter at a cumulative pore volume corresponding to 20% of the total pore volume and a logarithm of the pore diameter at 80% being 0.39 or less; and (iii) the volume of pores of more than 100 μm being 0.03 cm 3 /g or less.

METHOD FOR PRODUCING POLYCRYSTALLINE DIAMOND BODY, POLYCRYSTALLINE DIAMOND BODY, CUTTING TOOL, WEAR-RESISTANCE TOOL AND GRINDING TOOL

Provided is a method for producing a polycrystalline diamond body, the method including a first step of heat-treating a powder of high-pressure-phase carbon at higher than or equal to 1300° C. to obtain a heat-treated carbon powder, and a second step of sintering the heat-treated carbon powder under conditions of greater than or equal to 12 GPa and less than or equal to 25 GPa and higher than or equal to 1200° C. and lower than or equal to 2300° C. to obtain a polycrystalline diamond body. 1. A method for producing a polycrystalline diamond body , the method comprising:a first step of heat-treating a powder of high-pressure-phase carbon at higher than or equal to 1300° C. to obtain a heat-treated carbon powder; anda second step of sintering the heat-treated carbon powder under conditions of greater than or equal to 12 GPa and less than or equal to 25 GPa and higher than or equal to 1200° C. and lower than or equal to 2300° C. to obtain a polycrystalline diamond body.2. The method for producing a polycrystalline diamond body according to claim 1 , wherein the powder of high-pressure-phase carbon is heat-treated at lower than or equal to 2100° C. in the first step.3. The method for producing a polycrystalline diamond body according to claim 1 , wherein the high-pressure-phase carbon includes at least one of diamond and hexagonal diamond.4. A method for producing a polycrystalline diamond body claim 1 , the method comprising:a first step of heat-treating a powder of high-pressure-phase carbon at higher than or equal to 1300° C. and lower than or equal to 2100° C. to obtain a heat-treated carbon powder; anda second step of sintering the heat-treated carbon powder under conditions of greater than or equal to 12 GPa and less than or equal to 25 GPa and higher than or equal to 1200° C. and lower than or equal to 2300° C. to obtain a polycrystalline diamond body,wherein the high-pressure-phase carbon includes at least one of diamond and hexagonal diamond.5. A ...

PRODUCT COMPRISING AN ORIENTED FUNCTION AND PROCESS FOR OBTAINING SAME

Preparation of a slip including more than 4% and less than 50% of ceramic particles and including more than 1% of orientable ceramic particles made of a material including an oriented function, as volume percentage on the basis of the set of ceramic particles, wherein the fraction of non-orientable ceramic particles has a median length less than ten times the median length of the orientable ceramic particles if the set of ceramic particles includes less than 80%, as volume percentage, of orientable ceramic particles, oriented freezing of the slip by movement of a solidification front at a speed less than the speed of encapsulation of the ceramic particles; elimination of the crystals of solidified liquid phase of said block, optionally, sintering.

Production of beta-tri-calcium phosphate (beta-tcp) with high purity

The present invention relates to the method of production of beta-tri-calcium phosphate (β-TCP) with high purity and which has an osteoconductive support matrix which can be resorbed and which is bio-compliant when implanted to the defect area and which provides new bone formation in the defect area and which is resorbed while displacing with the newly formed bone in time.

CERAMIC POWDERS WITH CONTROLLED SIZE DISTRIBUTION

Disclosed herein are methods for preparing a titanate compound powder comprising titanate compound particles having a controlled particle size and/or particle size distribution. The methods include mixing at least one first inorganic compound chosen from sources of a first metal or metal oxide, at least one second inorganic compound chosen from sources of titania, and at least one binder to form a mixture; calcining the mixture to form a polycrystalline material comprising a plurality of titanate compound grains and a plurality of micro-cracks; and breaking the polycrystalline material along at least a portion of the microcracks. Also disclosed are titanate compound powders having a controlled particle size distribution, ceramic batch compositions comprising the powders, and ceramic articles prepared from the batch compositions. 1. A method for preparing a titanate compound powder , the method comprising:mixing at least one first inorganic compound chosen from sources of a first metal or metal oxide, at least one second inorganic compound chosen from sources of titania, and at least one binder to form a mixture;calcining the mixture at a temperature for an amount of time to form a polycrystalline material comprising a plurality of titanate compound grains, wherein the polycrystalline material further comprises a plurality of microcracks; andbreaking the polycrystalline material along at least a portion of the microcracks to provide a titanate compound powder comprising titanate compound particles having a controlled particle size and/or particle size distribution.2. The method according to claim 1 , wherein the at least one first inorganic compound is chosen from sources of alumina.3. The method according to claim 1 , wherein the mixture further comprises at least one compound chosen from magnesium compounds claim 1 , iron compounds claim 1 , and combinations thereof.4. The method according to claim 3 , wherein the polycrystalline material comprises grains of ...

CERAMIC HONEYCOMB STRUCTURE AND ITS PRODUCTION METHOD

A ceramic honeycomb structure comprising large numbers of cells partitioned by porous cell walls, the cell walls having (a) porosity of 50-80%, and when measured by mercury porosimetry, (b) a median pore diameter being 25-50 μm, (c) (i) a cumulative pore volume in a pore diameter range of 20 μm or less being 25% or less of the total pore volume, (ii) a cumulative pore volume in a pore diameter range of more than 20 μm and 50 μm or less being 50% or more of the total pore volume, and (iii) a cumulative pore volume in a pore diameter range of more than 50 μm being 12% or more of the total pore volume. 1(a) said cordierite-forming material comprising 10-25% by mass of silica having a median particle diameter of 10-60 μm; (i) a median particle diameter of more than 70 μm and 200 μm or less,', '(ii) in a curve of a cumulative volume (cumulative volume of particles up to a particular particle diameter) to a particle diameter, a particle diameter D90 at a cumulative volume corresponding to 90% of the total volume being 90-250 μm, and a particle diameter D10 at a cumulative volume corresponding to 10% of the total volume being 15-160 μm; and', '(iii) a particle diameter distribution deviation SD being 0.3 or less; and, '(b) said pore-forming material having'}(c) said pore-forming material added being 1-20% by mass per said cordierite-forming material.. A method for producing a ceramic honeycomb structure comprising the steps of blending material powder comprising a cordierite-forming material and a pore-forming material to obtain a moldable material, extruding said moldable material to obtain a honeycomb-shaped green body, and drying and sintering said green body to obtain a ceramic honeycomb structure, This application is a divisional application of application Ser. No. 14/765,871 filed Aug. 5, 2015, which is a National Stage of International Application No. PCT/JP2014/059433 filed Mar. 31, 2014 (claiming priority based on Japanese Patent Application No. 2013-076868, filed ...

Method to produce graphene foam reinforced low temperature co-fired ceramic (ltcc) composites

A graphene foam ceramic composite (GrF-CC) comprises an open cell graphene foam (GrF) surrounded by and infiltrated with a sintered low temperature co-fired ceramic (LTCC) matrix. The GrF-CC can be prepared by infiltrating an open cell GrF with an LTCC slurry, removing the solvent from the slurry with solidification to a ceramic-GrF green body, and sintering the ceramic-GrF green body to form the GrF-CC. Sintering by spark plasma sintering (SPS) allows an LTCC GrF-CC that has a density of at least 90%.

Alumina ceramic products

The invention provides a sintered, yttria stabilized zirconium-toughened alumina ceramic product comprising about 80-94 w/w % Al 2 O 3 , about 5-19 w/w % ZrO 2 and about 0.18-0.72 w/w % Y 2 0.

Heavy clay fireproof product and process for its production and its use

Die Erfindung betrifft ein grobkeramisches, feuerfestes Erzeugnis aus mindestens einem körnigen feuerfesten Werkstoff, wobei eine offene Porosität zwischen 22 und 45 Vol.-%, insbesondere zwischen 23 und 29 Vol.-%, und ein Kornaufbau des feuerfesten Werkstoffs, bei dem der Mittelkornanteil mit Korngrößen zwischen 0,1 und 0,5 mm 10 bis 55 Gew.-%, insbesondere 35 bis 50 Gew.-% beträgt, und wobei der Rest des Kornaufbaus Mehlkornanteil mit Korngrößen bis 0,1 mm und/oder Grobkornanteil mit Korngrößen über 0,5 mm ist. The invention relates to a coarse ceramic, refractory product of at least one granular refractory material, wherein an open porosity between 22 and 45 vol .-%, in particular between 23 and 29 vol .-%, and a grain structure of the refractory material, wherein the middle grain content with Grain sizes between 0.1 and 0.5 mm 10 to 55 wt .-%, in particular 35 to 50 wt .-%, and wherein the remainder of the grain structure flour grain fraction with grain sizes up to 0.1 mm and / or coarse grain fraction with grain sizes above 0 , 5 mm is.

一种高uv阻隔率、高太阳光反射率的陶瓷颗粒

本发明涉及一种高UV阻隔率、高太阳光反射率的陶瓷颗粒，其经由煅烧后的黏土矿物粉体成型后再煅烧而成，所述陶瓷颗粒具有下面特征：15‑35%的吸水率；≥97%的晶体含量；和90‑100%的UV阻隔率。本发明还涉及高UV阻隔率、高太阳光反射率的陶瓷颗粒的制备方法及其用于建筑表面反射节能的应用。

Valve metal oxide powder and method of preparing said powder

FIELD: chemistry. ^ SUBSTANCE: invention relates to preparing powder of valve metal oxide and can be used for preparing powder of valve metal or valve metal superoxides through reduction. The valve metal oxide is Nb2O5 or Ta2O5. The valve metal oxide powder contains spherical particles with average diametre D50 = 10-80 mcm with specific BET surface area equal to at least 10 m2/g. The method of preparing valve metal oxide powder involves reacting a fluorine-containing compound of a valve metal, taken in form of H2NbF7 or H2TaF7, with an aqueous solution of ammonia with concentration of 3-15 wt % and calcination of the product. The reaction is carried out continuously at temperature of at least 45C in a single reaction vessel. The fluorine-containing compound of valve metal is added in form of an aqueous solution with concentration of 0.3-1.2 mol/l in terms of valve metal. The ratio of bulk speed of the aqueous solution of the fluorine-containing compound of valve metal to the bulk speed of the aqueous solution of ammonia ranges from 1:0.9 to 1:2. Molar ratio of concentration of the fluorine-containing compound of valve metal, in terms of valve metal, to ammonia preferably ranges from 1:5.6 to 1:8.5. ^ EFFECT: obtaining valve metal oxide powder with spherical particles and high value of specific BET surface area with relatively large particles. ^ 4 cl, 3 dwg, 7 ex (19) РОССИЙСКАЯ ФЕДЕРАЦИЯ RU (11) 2 378 199 (13) C2 (51) МПК C01G 1/02 (2006.01) C01G 33/00 (2006.01) C01G 35/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21), (22) Заявка: 2006111711/15, 31.08.2004 (24) Дата начала отсчета срока действия патента: 31.08.2004 R U (30) Конвенционный приоритет: 12.09.2003 DE 10342600.0 (72) Автор(ы): БЕК Карстен (DE), ЗАЙЕДА Хади (DE), ЛЕРХ Клаус (DE), БАЛАН Бьянка Агнес (DE) (73) Патентообладатель(и): Х.К. ШТАРК ГМБХ (DE) (43) Дата публикации заявки: 27.10.2007 2 3 7 8 1 9 9 (45) Опубликовано ...

Method for producing porous sintered magnesia, a charge for producing a coarse-ceramic fireproof product with a granular material from sintered magnesia, such products, as well as methods for producing them, lining of an industrial furnace and an industrial furnace

FIELD: metallurgy.SUBSTANCE: present invention relates to fireproof materials based on magnesium oxide. According to the method for producing granular material, sintered magnesia is produced by sintering pressed granules from MgO powder, preferably from caustic MgO powder, and by subsequent mechanical grinding of the pressed granules. Sintering is carried out at a temperature below 1600°C in such a way that the granular material has a total porosity according to DIN EN 993-1:1195-04 and DIN EN 993-18:1999-01 from 15 to 38 vol. %, preferably from 20 to 38 vol. %. The charge for producing a coarse-ceramic refractory molded or unmolded product contains the specified porous sintered material. Products obtained from the charge are used in the internal lining and/or masonry without facing a large-volume industrial furnace, for example, a furnace for firing magnesia and dolomite, a furnace in non-ferrous metallurgy, a cement furnace, a rotating furnace for firing lime, a steelmaking furnace.EFFECT: technical result of the invention is an increase in compressive strength for the charge when obtaining products with high porosity and low thermal conductivity with low alkali infiltration.52 cl, 3 dwg, 13 tbl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 752 414 C2 (51) МПК C04B 35/043 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C04B 35/043 (2021.05); C04B 35/6262 (2021.05); C04B 35/64 (2021.05); C04B 2235/3206 (2021.05); C04B 2235/604 (2021.05) (21)(22) Заявка: 2020100219, 13.09.2018 13.09.2018 Дата регистрации: 27.07.2021 15.09.2017 DE 10 2017 121 452.6 (43) Дата публикации заявки: 30.06.2021 Бюл. № 19 (45) Опубликовано: 27.07.2021 Бюл. № 21 (86) Заявка PCT: EP 2018/074817 (13.09.2018) C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 31.12.2019 (56) Список документов, цитированных в отчете о поиске: SU 1337368 A1, 10.09.2000. US 20160115080 A1, 28.04.2016. US 20150087496 A1, 26.03.2015. US ...

Method for producing a geometric oxidic molded body

본 발명은, 금형의 공동 내에 도입된 분말상 응집체를 기계적 압축하여 기하학적 성형 전구체를 형성하는 단계, 및 상기 전구체의 성분이 분해 또는 반응하면서 기체상 성분을 생성하는, 기하학적 성형 전구체를 열 처리하는 단계를 포함하며, 여기서 분말상 응집체는 금속 산화물 또는 금속 산화물 전구체, 예컨대 니트레이트 또는 암모늄 염을 함유하고, 금형 구멍과 접촉하는 금형 물질은 80 중량% 이상의 WC 및 5 중량%의 니켈을 갖는 경질 금속인, 기하학적 산화물 성형체의 제조 방법에 관한 것이다. The present invention relates to a process for the production of a mold comprising the steps of mechanically compressing powdered agglomerates introduced into a cavity of a mold to form a geometrically shaped precursor, and heat treating the geometrically shaped precursor, wherein the components of the precursor decompose or react to produce a gaseous phase component Wherein the powdered aggregate contains a metal oxide or metal oxide precursor such as a nitrate or ammonium salt and the mold material in contact with the mold cavity is a hard metal having a WC of at least 80 wt% and a nickel of 5 wt% And a method of manufacturing an oxide formed body.

Способ получения пористой спеченной магнезии, шихты для получения грубокерамического огнеупорного изделия с зернистым материалом из спеченной магнезии, изделия такого рода, а также способы их получения, футеровки промышленной печи и промышленная печь

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2020 100 219 A (51) МПК C04B 35/043 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2020100219, 13.09.2018 (71) Заявитель(и): Рефратехник Холдинг ГмбХ (DE) Приоритет(ы): (30) Конвенционный приоритет: 15.09.2017 DE 10 2017 121 452.6 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 31.12.2019 R U (43) Дата публикации заявки: 30.06.2021 Бюл. № 19 (72) Автор(ы): КЛИШАТ Ханс-Юрген (DE), ПЛУММЕР Роберт (CN), ВЕЛЛЬМЕР Карстен (DE), ВИРЗИНГ Хольгер (DE) (86) Заявка PCT: (87) Публикация заявки PCT: WO 2019/053167 (21.03.2019) R U (54) Способ получения пористой спеченной магнезии, шихты для получения грубокерамического огнеупорного изделия с зернистым материалом из спеченной магнезии, изделия такого рода, а также способы их получения, футеровки промышленной печи и промышленная печь (57) Формула изобретения 1. Способ получения зернистого материала из спеченной магнезии, отличающийся тем, что спеченную магнезию получают посредством спекания прессованных изделий, в частности гранул из порошка MgO, предпочтительно, из каустического порошка MgO, и путем последующего механического измельчения прессованных изделий, при этом спекание осуществляют таким образом, что зернистый материал имеет пористость (общей пористостью) согласно DIN EN 993-1:1195-04 и DIN EN 993-18:1999-01 15-38 об.%, предпочтительно, 20-38 об.%. 2. Способ по п. 1, отличающийся тем, что спекание осуществляют при максимальной температуре 1100-1600°C, предпочтительно, 1200-1600°C, более предпочтительно, 12001550°C, наиболее предпочтительно, 1200-1500°C. 3. Способ по одному из предыдущих пунктов, отличающийся тем, что спекание осуществляют при максимальной температуре ≤1600°C, предпочтительно, ≤1550°C, более предпочтительно, ≤1500°C, наиболее предпочтительно, ≤1400°C. 4. Способ по одному из предыдущих пунктов, отличающийся тем, что спекание осуществляют таким образом, что зернистый материал согласно DIN EN ...

Production method for light ceramic materials

FIELD: construction. SUBSTANCE: basis of the method is creation of a material structure with spherical, closed and isolated pores. Basing on the sum of the raw ceramic mass and polymer particles the raw ceramic mixture is added with spherical polymer particles from 0.5 to 70 wt % and with a diameter of 5 micron to 3 mm. The spherical polymer particles are composed of a polymer with a decomposition temperature below 280°C. The raw ceramic mixture contains less than 10 wt % of ceramic particles which are greater than 0.6 mm. The raw ceramic mixture is processed into a ceramic material when it is cast into a mould, then dried, calcined and burnt. The pore diameter is purposefully controlled by applying polymer particles, preferably polymethyl methacrylates. EFFECT: method allows producing ceramic materials, partly with substantially reduced specific weight, improved corrosion resistance when compared to the state of art, better mechanical strength At the same time the specific system of closed pores provides for reducing the thermal conductivity of ceramic materials. 14 cl, 33 ex, 12 tbl, 8 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 622 557 C2 (51) МПК C04B 35/634 (2006.01) C04B 38/06 (2006.01) C04B 35/66 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ 2014115609, 23.08.2012 (24) Дата начала отсчета срока действия патента: 23.08.2012 Дата регистрации: Приоритет(ы): (30) Конвенционный приоритет: (73) Патентообладатель(и): ЭВОНИК РЕМ ГМБХ (DE) 20.09.2011 DE 102011113696.0 (45) Опубликовано: 16.06.2017 Бюл. № 17 (56) Список документов, цитированных в отчете о поиске: EP 2025658 A1, 18.02.2009. RU 2209793 C1, 10.08.2003. SU 337366 A, 05.05.1972. EP 578408 D1, 19.04.2000. (85) Дата начала рассмотрения заявки PCT на национальной фазе: 21.04.2014 (86) Заявка PCT: EP 2012/066437 (23.08.2012) (87) Публикация заявки PCT: 2 6 2 2 5 5 7 (43) Дата публикации заявки: 27.10.2015 Бюл. № 30 R U 16 ...

Method of producing circular oxide compacted material

FIELD: process engineering. SUBSTANCE: invention relates to powder metallurgy, particularly, to production of circular oxide compacted article. It can be used for production of catalyst stationary bed used in shell-and-tube reactor pipes. Powder material containing at least one metal compound to be converted into metal oxide by heat treatment, or at least one metal oxide , or at least one metal oxide and at least one metal compound, are placed in loading chamber. Mechanical compaction is performed to preform ring-like article with side surface shaped to truncated cone expanding upward. Preformed article is heat treated at ≥100°C to destruct and/or chemically convert the article components with production of gas compound and final ring-like oxide article. EFFECT: higher quality of finished articles. 50 cl, 10 dwg, 5 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 520 284 C2 (51) МПК B22F 3/02 (2006.01) B22F 3/03 (2006.01) B30B 15/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2011103478/02, 01.07.2009 (21)(22) Заявка: (24) Дата начала отсчета срока действия патента: 01.07.2009 Приоритет(ы): (30) Конвенционный приоритет: DE DE US US 102008040093.9; 102008040094.7; 61/077,638; 61/077,601 (73) Патентообладатель(и): БАСФ СЕ (DE) (45) Опубликовано: 20.06.2014 Бюл. № 17 (56) Список документов, цитированных в отчете о поиске: US 2005/263926 A1, 01.12.2005. RU (85) Дата начала рассмотрения заявки PCT на национальной фазе: 02.02.2011 C 2 C 2 2264886 C1, 27.11.2005. SU 1447571 A1, 30.12.1988. GB 1374952 A, 20.11.1974. US 6558144 B1, 06.05.2003 (86) Заявка PCT: EP 2009/058233 (01.07.2009) 2 5 2 0 2 8 4 (87) Публикация заявки PCT: R U 2 5 2 0 2 8 4 (43) Дата публикации заявки: 10.08.2012 Бюл. № 22 R U 02.07.2008 02.07.2008 02.07.2008 02.07.2008 (72) Автор(ы): ЭГЕР, Кнут (DE), ФАУСТ, Йенс Уве (DE), БОРХЕРТ, Хольгер (DE), ШТРАЙБЕРТ, Ральф (DE), МЮЛЛЕР-ЭНГЕЛЬ, Клаус Йоахим (DE), РАЙХЛЕ,Андреас (DE) WO 2010/000764 (07.01.2010) Адрес ...

Method for manufacturing dielectric ceramic powder, and multilayer ceramic capacitor using the seramic powder

유전체용 세라믹분말의 제조방법, 및 그 세라믹분말을 이용하여 제조된 적층세라믹커패시터가 제공된다. A method of manufacturing a ceramic powder for a dielectric and a laminated ceramic capacitor manufactured using the ceramic powder are provided. 본 발명은, 용제와 분산제로 이루어진 용액에 BaCO 3 분말을 분산시켜 BaCO 3 슬러리를 마련한후, 이를 습식분쇄하는 공정; 상기 습식분쇄된 BaCO 3 슬러리에 TiO 2 분말을 슬러리 상태로 혼합한후, 이를 건조하는 공정; 및 상기 건조된 혼합분말을 하소함으로써 BaTiO 3 분말을 제조하는 공정;을 포함하는 유전체용 세라믹분말의 제조방법과, 상기 제조공정을 제조된 유전체용 세라믹분말을 이용하여 제조된 적층세라믹 커패시터에 관한 것이다. The present invention is to prepare a BaCO 3 slurry by dispersing BaCO 3 powder in a solution consisting of a solvent and a dispersant, and then wet grinding it; Mixing TiO 2 powder in a slurry state to the wet milled BaCO 3 slurry and drying the slurry; And a step of producing BaTiO 3 powder by calcining the dried mixed powder; and a multilayer ceramic capacitor manufactured by using the dielectric ceramic powder manufactured by the manufacturing process. . 세라믹분말, BaCO3, 습식분쇄, 결정화도 Ceramic Powder, BaCO3, Wet Grinding, Crystallinity

研磨方法

本发明提供一种在水性悬浮液中研磨例如碳酸钙或者高岭土等无机微粒材料的方法，优选在固体含量低于50重量%时进行研磨，其中所述水性悬浮液中含有次有效量的用于无机微粒材料的分散剂。

一种利用闪烧技术制备连续纤维增强陶瓷基复合材料的方法

本发明涉及一种利用闪烧技术制备连续纤维增强陶瓷基复合材料的方法，包括首先将连续陶瓷纤维预制体置于模具中，随后将纳米陶瓷粉体少量多次逐步倒入模具中连续陶瓷纤维预制体上，并经过机械振荡使纳米陶瓷粉体充分填充预制体内部的孔隙；之后将所得松散复合材料采用一定压力进行压制成型，得到坯体；然后将坯体置于闪烧炉中，升温至预设温度，并施加预设电场强度的电场，直至出现闪烧现象；随后将电源由恒压状态转变为恒流状态，并在预设电流密度下保温一段时间，最后经降温冷却后即得到连续纤维增强陶瓷基复合材料。与现有技术相比，本发明具有烧结温度低、制备周期短、所得复合材料更加致密、陶瓷晶粒更细小、力学性能更加优异等优点。

Heat-insulating and heat-conducting concrete based on aluminophosphate binder (versions)

FIELD: chemistry. SUBSTANCE: invention relates to refractory industry, particularly production of refractory high-strength non-electroconductive articles from corundum and silicon carbide concrete on aluminophosphate binder. Refractory concrete on aluminophosphate binder contains orthophosphoric acid with concentration of 65-75% and a mixture of different fractions of electrocorundum 25A, with the following ratio of components according to FEPA 32GB 1971, wt %: electrocorundum of fraction 20 - 28-36; electrocorundum of fraction 46 - 22-24; electrocorundum of fraction 80 - 15-20; electrocorundum of fraction 220 - 25-35; orthophosphoric acid - 10-12 more than 100%. EFFECT: high strength, fire-resistance and heat-conductivity, low porosity of articles. 2 cl, 2 tbl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 483 038 (13) C2 (51) МПК C04B 28/34 (2006.01) C04B 35/101 (2006.01) C04B 35/103 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2011113092/03, 05.04.2011 (24) Дата начала отсчета срока действия патента: 05.04.2011 (72) Автор(ы): Алферьев Сергей Дмитриевич (RU), Поляков Валерий Анатольевич (RU) (43) Дата публикации заявки: 10.10.2012 Бюл. № 28 R U (73) Патентообладатель(и): Закрытое акционерное общество "ПикКерама" (RU) Приоритет(ы): (22) Дата подачи заявки: 05.04.2011 (45) Опубликовано: 27.05.2013 Бюл. № 15 2 4 8 3 0 3 8 (56) Список документов, цитированных в отчете о поиске: SU 943214 A1, 15.07.1982. SU 945142 A1, 23.07.1982. SU 863551 A1, 15.09.1981. UA 77552 C2, 15.12.2006. (57) Реферат: Изобретение относится к огнеупорной промышленности, в частности к производству огнеупорных высокопрочных неэлектропроводных изделий из корундовых и карбидокремниевых бетонов на алюмофосфатной связке. Техническим результатом изобретения является повышение прочности, огнестойкости и теплопроводности, снижение пористости изделий. Огнеупорный бетон на алюмофосфатной связке включает ортофосфорную кислоту концентрацией 65-75% ...

Patent RU2020100219A3

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2020 100 219 A (51) МПК C04B 35/043 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2020100219, 13.09.2018 (71) Заявитель(и): Рефратехник Холдинг ГмбХ (DE) Приоритет(ы): (30) Конвенционный приоритет: 15.09.2017 DE 10 2017 121 452.6 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 31.12.2019 R U (43) Дата публикации заявки: 30.06.2021 Бюл. № 19 (72) Автор(ы): КЛИШАТ Ханс-Юрген (DE), ПЛУММЕР Роберт (CN), ВЕЛЛЬМЕР Карстен (DE), ВИРЗИНГ Хольгер (DE) (86) Заявка PCT: (87) Публикация заявки PCT: WO 2019/053167 (21.03.2019) R U (54) Способ получения пористой спеченной магнезии, шихты для получения грубокерамического огнеупорного изделия с зернистым материалом из спеченной магнезии, изделия такого рода, а также способы их получения, футеровки промышленной печи и промышленная печь (57) Формула изобретения 1. Способ получения зернистого материала из спеченной магнезии, отличающийся тем, что спеченную магнезию получают посредством спекания прессованных изделий, в частности гранул из порошка MgO, предпочтительно, из каустического порошка MgO, и путем последующего механического измельчения прессованных изделий, при этом спекание осуществляют таким образом, что зернистый материал имеет пористость (общей пористостью) согласно DIN EN 993-1:1195-04 и DIN EN 993-18:1999-01 15-38 об.%, предпочтительно, 20-38 об.%. 2. Способ по п. 1, отличающийся тем, что спекание осуществляют при максимальной температуре 1100-1600°C, предпочтительно, 1200-1600°C, более предпочтительно, 12001550°C, наиболее предпочтительно, 1200-1500°C. 3. Способ по одному из предыдущих пунктов, отличающийся тем, что спекание осуществляют при максимальной температуре ≤1600°C, предпочтительно, ≤1550°C, более предпочтительно, ≤1500°C, наиболее предпочтительно, ≤1400°C. 4. Способ по одному из предыдущих пунктов, отличающийся тем, что спекание осуществляют таким образом, что зернистый материал согласно DIN EN ...

Valve metal oxide powder and method for producing the same

具有高孔隙率和低渗透率的石墨体及其生产方法

形成石墨碳体的方法采用压缩和电阻加热碳料与连结材料的原料共混物。在该碳体成型期间，电阻加热伴随着施加机械压力以增加所得预成型坯体的密度和碳化。该预成型坯随后可经受石墨化温度以形成石墨制品。

Process for producing a honeycomb body

Method for producing solid ceramic particles using a spray drying process

Methods for producing solid, substantially round, spherical and sintered particles from a slurry of a calcined, uncalcined or partially calcined raw material having an alumina content of greater than about 40 weight percent. The slurry is processed with spray drying methods into solid, substantially round, spherical and sintered particles having an average particle size greater than about 200 microns, a bulk density of greater than about 1.40 g/cc, and an apparent specific gravity of greater than about 2.60.

Способ получения твердого электролита на основе lgps

Изобретение относится к способу получения твердого электролита на основе LGPS, имеющего определенную кристаллическую структуру, содержащую Li, Р и S. Способ получения твердого электролита на основе LGPS характеризуется наличием стадии, на которой смесь кристаллов Li 3 PS 4 , имеющих пик на рамановском спектре при 420±10 см -1 , и кристаллов Li 4 MS 4 (М выбран из группы, состоящей из Ge, Si и Sn) подвергают термической обработке при 300-700°С; наличием стадии, на которой кристаллы Li 3 PS 4 , имеющие на рамановском спектре пик при 420±10 см -1 , кристаллы Li 2 S и сульфидные кристаллы, представленные структурой MS 2 (М выбран из группы, состоящей из Ge, Si и Sn), смешивают, при этом сохраняют кристаллы и синтезируют предшественник; и стадией, на которой предшественник подвергают термической обработке при 300-700°С. Техническим результатом является высокая производительность, стабильные характеристики и уменьшение образования побочных продуктов. 2 н. и 6 з.п. ф-лы, 5 ил., 8 пр. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 754 868 C2 (51) МПК H01M 10/0562 (2010.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК H01M 10/0562 (2021.05) (21)(22) Заявка: 2019130768, 16.03.2018 (24) Дата начала отсчета срока действия патента: Дата регистрации: 08.09.2021 22.03.2017 JP 2017-055754; 11.09.2017 JP 2017-173878 (43) Дата публикации заявки: 22.04.2021 Бюл. № 12 (45) Опубликовано: 08.09.2021 Бюл. № 25 (56) Список документов, цитированных в отчете о поиске: WO 2017007030 A1, 12.01.2017. JP 2002109955 A, 12.04.2002. RU 2402842 C2, 27.10.2010. RU 2585252 C2, 27.05.2016. (86) Заявка PCT: C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 22.10.2019 JP 2018/010373 (16.03.2018) (87) Публикация заявки PCT: 2 7 5 4 8 6 8 WO 2018/173939 (27.09.2018) R U 2 7 5 4 8 6 8 (73) Патентообладатель(и): МИЦУБИСИ ГАЗ КЕМИКАЛ КОМПАНИ, ИНК. (JP) Приоритет(ы): (30) Конвенционный приоритет: R U 16.03.2018 (72) Автор(ы): КАТОРИ, Аки (JP), ...

Zirconia sintered body and manufacturing method thereof

SPHERICAL PELLETS CONTAINING MATERIAL OF COMMON CLAY PARTICLES USED AS A SUPPORT AGENT IN HYDRAULIC FRACTURES OF PETROLEUM AND GAS WELLS

Un agente apuntalante cerámico, en forma de pellet esférico, que contiene partículas minerales comunes. El agente apuntalante deseado se define como partículas cerámicas realizado a partir de materias primas que podría estar compuesto de alrededor de: 10% - 90% de partes en peso por partículas minerales naturales, 30% - 70% de partes en peso por un modificador de red de silicato de aluminio, 0,25 - 20% de partes en peso por un aditivo para aumentar resistencia, y por lo menos una parte, típicamente menos del 10% en peso, por aglutinante. Para uso en pozos de petróleo y/o gas natural como un apuntalante en fracturas hidráulicas. A ceramic propping agent, in the form of a spherical pellet, which contains common mineral particles. The desired propping agent is defined as ceramic particles made from raw materials that could be composed of about: 10% - 90% of parts by weight by natural mineral particles, 30% - 70% of parts by weight by a modifier of aluminum silicate net, 0.25-20% of parts by weight for an additive to increase strength, and at least one part, typically less than 10% by weight, per binder. For use in oil and / or natural gas wells as a prop in hydraulic fractures.

Methods for producing sintered particles from a slurry of an alumina-containing raw material

Methods for producing substantially round, spherical and sintered particles from a slurry of a calcined, uncalcined or partially calcined raw material having an alumina content of more than 55% by weight, and a mullite growth promoter in an amount of from about 2 to about 10% dry weight of the total solids in the slurry. Methods for using such substantially round, spherical and sintered particles in hydraulic fracturing operations.

Method for producing solid ceramic particles using a spray drying process

Methods for producing solid, substantially round, spherical and sintered particles from a slurry of a calcined, uncalcined or partially calcined raw material having an alumina content of greater than about 40 weight percent. The slurry is processed with spray drying methods into solid, substantially round, spherical and sintered particles having an average particle size greater than about 200 microns, a bulk density of greater than about 1.40 g/cc, and an apparent specific gravity of greater than about 2.60.

Methods for producing sintered particles from a slurry of an alumina-containing raw material

Sintered, substantially round and spherical particles prepared from a slurry of a calcined, uncalcined or partially calcined raw material having an alumina content of more than 55% by weight, and a mullite growth promoter in an amount of from about 2 to about 10% dry weight of the total solids in the slurry. The sintered particles are suitable for use as a propping agent or as a foundry media.

Methods for producing sintered particles from a slurry of an alumina-containing raw material

Methods for producing substantially round, spherical and sintered particles from a slurry of a calcined, uncalcined or partially calcined raw material having an alumina content of more than 55% by weight, and a mullite growth promoter in an amount of from about 2 to about 10% dry weight of the total solids in the slurry. Methods for using such substantially round, spherical and sintered particles in hydraulic fracturing operations.

Methods for producing sintered particles from a slurry of an alumina-containing raw material

Methods for producing substantially round, spherical and sintered particles from a slurry of a calcined, uncalcined or partially calcined raw material having an alumina content of more than 55% by weight, and a mullite growth promoter in an amount of from about 2 to about 10% dry weight of the total solids in the slurry. Methods for using such substantially round, spherical and sintered particles in hydraulic fracturing operations.

Ceramic Particles With Controlled Pore and/or Microsphere Placement and/or Size and Method Of Making Same

The present invention relates to lightweight high strength microsphere containing ceramic particles having controlled microsphere placement and/or size and microsphere morphology, which produces an improved balance of specific gravity and crush strength such that they can be used in applications such as proppants to prop open subterranean formation fractions. Proppant formulations are further disclosed which use one or more microsphere containing ceramic particles of the present invention. Methods to prop open subterranean formation fractions are further disclosed. In addition, other uses for the microsphere containing ceramic particles of the present invention are further disclosed, as well as methods of making the microsphere containing ceramic particles.

Ceramic particles with controlled pore and/or microsphere placement and/or size and method of making same

The present invention relates to lightweight high strength microsphere containing ceramic particles having controlled microsphere placement and/or size and microsphere morphology, which produces an improved balance of specific gravity and crush strength such that they can be used in applications such as proppants to prop open subterranean formation fractions. Proppant formulations are further disclosed which use one or more microsphere containing ceramic particles of the present invention. Methods to prop open subterranean formation fractions are further disclosed. In addition, other uses for the microsphere containing ceramic particles of the present invention are further disclosed, as well as methods of making the microsphere containing ceramic particles.

Ceramic particles with controlled pore and/or microsphere placement and/or size and method of making same

The present invention relates to lightweight high strength microsphere containing ceramic particles having controlled microsphere placement and/or size and microsphere morphology, which produces an improved balance of specific gravity and crush strength such that they can be used in applications such as proppants to prop open subterranean formation fractions. Proppant formulations are further disclosed which use one or more microsphere containing ceramic particles of the present invention. Methods to prop open subterranean formation fractions are further disclosed. In addition, other uses for the microsphere containing ceramic particles of the present invention are further disclosed, as well as methods of making the microsphere containing ceramic particles.

Ceramic particles with controlled pore and/or microsphere placement and/or size and method of making same

The present invention relates to lightweight high strength microsphere containing ceramic particles having controlled microsphere placement and/or size and microsphere morphology, which produces an improved balance of specific gravity and crush strength such that they can be used in applications such as proppants to prop open subterranean formation fractions. Proppant formulations are further disclosed which use one or more microsphere containing ceramic particles of the present invention. Methods to prop open subterranean formation fractions are further disclosed. In addition, other uses for the microsphere containing ceramic particles of the present invention are further disclosed, as well as methods of making the microsphere containing ceramic particles.

Boron carbide component and methods for the manufacture thereof

一种具有石墨内含物的碳化硼主体，其中所述主体的中心部分包括比围绕所述中心部分以及与其外部表面相邻的区域有更多的石墨，以及一种制备所述碳化硼主体的方法。

Synthetic proppants and monodispersed proppants and methods of making the same

记载了合成的陶瓷支撑剂。还记载了3σ分布以下的单分散性的支撑剂，包括这些支撑剂的制备方法和这些支撑剂的使用方法。

Zirconia composite alumina ceramic sintered body, preparation method and application thereof

本发明公开了一种氧化锆复合氧化铝陶瓷烧结体，包含以下质量百分含量的成分：含锆化合物(含量以氧化锆形式计算)0.01‑20％、含钇化合物(含量以氧化钇形式计算)0‑1.75％、含硅化合物(含量以氧化硅形式计算)0.01‑0.8％、含钙化合物(含量以氧化钙形式计算)0‑0.035％、含镁化合物(含量以氧化镁形式计算)0‑0.05％，余量为氧化铝。本发明通过降低助熔剂含量，降低助熔剂对晶界强度及声子传递速率的影响，通过控制ZrO 2 初始粒径及分散均匀性实现ZrO 2 助熔Al 2 O 3 基体致密化，提升氧化铝陶瓷基体的机械强度及热导率。同时，本发明还公开了包含上述烧结体的氧化铝基板及其制备方法。

Luminous ferroelectric ceramic material of the Eu-Bi codope tungsten bronze structure of high-incidence photo and thermal stability and preparation method thereof

本发明公开了一种高发光热稳定性的Eu‑Bi共掺杂钨青铜结构发光铁电陶瓷材料及其制备方法，该陶瓷材料的结构通式为Sr 1.90 Ca 0.15 Na 0.81‑3x Eu y Bi x Nb 5 O 15 ，其中x的取值为0.003～0.008、y的取值为0.02～0.06，其采用传统高温固相法制备而成，制备方法成本低廉，操作方便。本发明通过在陶瓷材料中掺杂Eu和Bi，不但使其具有发光性能，且显著提高了其发光热稳定性，并改善了其介电铁电性能，其中x＝0.005、y＝0.03时，其发光热稳定性为67％，最大介电常数为1345、居里温度为272℃、剩余极化强度为4.29μC/cm 2 、矫顽场为21.41kV/cm。

Ceramic circuit board, ceramic green sheet for ceramic circuit board, and glass ceramic powder for ceramic circuit board

FIRE RESISTANT PRODUCT AND ITS APPLICATION

1. Смесь сухих веществ для огнестойкого состава, применяемого в частности для облицовки плавильных устройств для цветных металлов, предпочтительно для облицовки плавильных конверторов для меди, указанная смесь преимущественно содержащая:- по меньшей мере 30 масс.%, необработанного оливина с крупными частицами, имеющего размер частиц более 0,1 мм,- по меньшей мере 35 масс.%, оксида магния (MgO) в форме муки с размером частиц, ≤1 мм,- по меньшей мере 5 масс.% карбида кремния (SiC) в форме муки с размером частиц ≤1 мм,- необязательно до 10 масс.% сухой тонкодисперсной кремниевой кислоты (SiO),- необязательно до 10 масс.% по меньшей мере одной добавки для огнестойкости состава, такой как антиокислитель,- оставшееся количество до 100 масс.% - по меньшей мере одно другое твердое вещество.2. Смесь сухих веществ для огнестойкого состава, применяемого в частности для облицовки плавильных устройств для цветных металлов, предпочтительно для облицовки плавильных конверторов для меди, указанная смесь преимущественно содержащая- по меньшей мере 30 масс.% необработанного оливина с крупными частицами имеющего размер частиц более 0,1 мм,- по меньшей мере 35 масс.% оксида магния (MgO) в форме муки с размером частиц ≤1 мм,- по меньшей мере 5 масс.% карбида кремния (SiC) в форме муки с размером частиц ≤1 мм,- до 10 масс.% сухой тонкодисперсной кремниевой кислоты (SiO),- необязательно до 10 масс.% по меньшей мере одной добавки для огнестойкости состава,- оставшееся количество до 100 масс.% - по меньшей мере одно другое твердое вещество.3. Смесь сухих веществ по п. 1, содержащая следующие твердые вещества в количественном соотношении:необработанный оливин: от 30 до 60, в частности от 40 до 50 масс.%MgO: от 35 до 50, в частности от 40 до 45 масс.%SiC: от 5 до 20, в частности от 10 до 15 масс.%SiO: от 0 до 10, в РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК C04B 35/043 (13) 2015 106 717 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка ...

Processes nd methods of making boron carbide and boron carbide components

고밀도 부재 및 제품과 고밀도 부재 및 제품의 제조 방법이 개시된다. 한가지 구체적인 부재의 예로는 균질한 탄화붕소 분말을 포함하여 만들어진 탄화붕소 부재이다. 이 부재는 적어도 93%의 상대 밀도 (RD)와 적어도 2000 kg/mm 2 의 Vickers 경도를 갖는다. Disclosed are a high density member and an article and a method for producing the high density member and an article. An example of one specific member is a boron carbide member made of homogeneous boron carbide powder. This member has a relative density (RD) of at least 93% and a Vickers hardness of at least 2000 kg / mm 2 . 고밀도 부재, 탄화붕소, 상대 밀도, Vickers 경도 High Density Member, Boron Carbide, Relative Density, Vickers Hardness

Method for producing boron carbide and boron carbide member

Method for producing LGPS-based solid electrolyte

本発明の一実施形態によれば、ラマン測定において４２０±１０ｃｍ−１にピークを有するＬｉ３ＰＳ４結晶と、Ｌｉ４ＭＳ４結晶（Ｍは、Ｇｅ、Ｓｉ及びＳｎからなる群より選ばれる）との混合物を、３００〜７００℃にて加熱処理する工程と、を有することを特徴とするＬＧＰＳ系固体電解質の製造方法を提供することができる。更に、本発明の別の一実施形態によれば、ラマン測定において４２０±１０ｃｍ−１にピークを有するＬｉ３ＰＳ４結晶と、Ｌｉ２Ｓ結晶と、ＭＳ２（Ｍは、Ｇｅ、Ｓｉ及びＳｎからなる群より選ばれる）で表される硫化物結晶と、を結晶を有するまま混合して前駆体を合成する工程と、前記前駆体を３００〜７００℃にて加熱処理する工程と、を有することを特徴とするＬＧＰＳ系固体電解質の製造方法を提供することができる。 According to one embodiment of the present invention, a mixture of a Li3PS4 crystal having a peak at 420 ± 10 cm -1 in Raman measurement and a Li4MS4 crystal (M is selected from the group consisting of Ge, Si, and Sn) is used as a mixture. And a step of performing a heat treatment at a temperature of from 700 ° C. to 700 ° C .. Further, according to another embodiment of the present invention, a Li3PS4 crystal having a peak at 420 ± 10 cm -1 in Raman measurement, a Li2S crystal, and MS2 (M is selected from the group consisting of Ge, Si and Sn) LGPS comprising the steps of: mixing a sulfide crystal represented by the formula (1) with a crystal and having a crystal to synthesize a precursor; and heat-treating the precursor at 300 to 700 ° C. A method for producing a solid electrolyte can be provided.

Titanium diboride granules as cathode protection against erosion

FIELD: chemistry. SUBSTANCE: invention relates to granules of titanium diboride, used for coating graphite cathodes in electrolytic cells in production of aluminium by electrolysis of molten medium and for repairing holes in cathode bottom of electrolytic cells. Titanium diboride granules have rounded shape, size in accordance with sieve number between 1 and 10 mm and compression strength of at least 5 N. Granules are obtained by mixing TiB 2 powder with raw binder materials, preferably oxide, in form of aluminium compounds, obtaining raw workpieces and thermal treatment at temperatures of at least 800 °C. EFFECT: technical result of invention is improvement resistance of granules to wear and breakdown and improved protection of electrolysis cell against erosion wear. 22 cl, 11 ex, 1 tbl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 606 483 C2 (51) МПК C04B 35/58 (2006.01) C04B 35/626 (2006.01) C25C 3/08 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ 2014110968, 02.08.2012 (24) Дата начала отсчета срока действия патента: 02.08.2012 (72) Автор(ы): ЭНГЛЕР Мартин (DE), ВИКТОР Георг (DE) (73) Патентообладатель(и): ЗМ Инновейтив Пропертиз Компани (US) Дата регистрации: (56) Список документов, цитированных в отчете о поиске: GB 2065174 A, 24.06.1981. Приоритет(ы): (30) Конвенционный приоритет: 23.08.2011 DE 102011111331.6 (45) Опубликовано: 10.01.2017 Бюл. № 1 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 24.03.2014 (86) Заявка PCT: EP 2012/065189 (02.08.2012) (87) Публикация заявки PCT: 2 6 0 6 4 8 3 (43) Дата публикации заявки: 27.09.2015 Бюл. № 27 MARIAM MOHAMED Al JALLAF et al, "Simplifying Protection System to Prolong Cell Life", Light Metals, 2011, с.1082, 1083. RU 2257425 C2, 27.07.2005. US 4544524 A, 01.10.1985. US 4532017 A, 30.07.1985.. R U 14.12.2016 2 6 0 6 4 8 3 R U Адрес для переписки: 129090, Москва, Б.Спасская, 25, стр. 3, ООО "Юридическая фирма Городисский ...

Method for manufacturing LGPS-based solid electrolyte

METAL OXIDE POWDER FOR ELECTRON LAMPS AND METHOD FOR ITS PRODUCTION

ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (11) 2006 111 711 (13) A (51) ÌÏÊ C01G 1/02 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÇÀßÂÊÀ ÍÀ ÈÇÎÁÐÅÒÅÍÈÅ (21), (22) Çà âêà: 2006111711/15, 31.08.2004 (71) Çà âèòåëü(è): Õ.Ê. Øòàðê ÃìáÕ (DE) (30) Êîíâåíöèîííûé ïðèîðèòåò: 12.09.2003 DE 10342600.0 (43) Äàòà ïóáëèêàöèè çà âêè: 27.10.2007 Áþë. ¹ 30 (87) Ïóáëèêàöè PCT: WO 2005/028367 (31.03.2005) Àäðåñ äë ïåðåïèñêè: 105064, Ìîñêâà, óë. Êàçàêîâà, 16, ÍÈÈÐ Êàíöåë ðè "Ïàòåíòíûå ïîâåðåííûå Êâàøíèí, Ñàïåëüíèêîâ è ïàðòíåðû", ïàò.ïîâ. Â.Ï.Êâàøíèíó R U (57) Ôîðìóëà èçîáðåòåíè 1. Ñïîñîá ïîëó÷åíè ïîðîøêà îêñèäà ìåòàëëà äë ýëåêòðîííûõ ëàìï ïðè âçàèìîäåéñòâèè ôòîðñîäåðæàùåãî ñîåäèíåíè ìåòàëëà äë ýëåêòðîííûõ ëàìï ñ îñíîâàíèåì â ïðèñóòñòâèè âîäû è êàëüöèíèðîâàíèè ïðîäóêòà, ïîëó÷àåìîãî ïðè ýòîì, îòëè÷àþùèéñ òåì, ÷òî âçàèìîäåéñòâèå îñóùåñòâë þò ïðè òåìïåðàòóðå, ïî ìåíüøåé ìåðå, 45°Ñ. 2. Ñïîñîá ïî ï.1, îòëè÷àþùèéñ òåì, ÷òî âçàèìîäåéñòâèå ôòîðñîäåðæàùåãî ñîåäèíåíè ìåòàëëà äë ýëåêòðîííûõ ëàìï ñ îñíîâàíèåì îñóùåñòâë þò íåïðåðûâíî. 3. Ñïîñîá ïî ï.1 èëè 2, îòëè÷àþùèéñ òåì, ÷òî ôòîðñîäåðæàùåå ñîåäèíåíèå ìåòàëëà äë ýëåêòðîííûõ ëàìï è èñïîëüçóåìîå îñíîâàíèå êàæäîå èñïîëüçóþò â âèäå âîäíîãî ðàñòâîðà èëè ñóñïåíçèè. 4. Ñïîñîá ïî ï.1 èëè 2, îòëè÷àþùèéñ òåì, ÷òî ôòîðñîäåðæàùåå ñîåäèíåíèå ìåòàëëà äë ýëåêòðîííûõ ëàìï ïðåäñòàâë åò ñîáîé H2NbF7 èëè Í2TaF7. 5. Ñïîñîá ïî ï.1 èëè 2, îòëè÷àþùèéñ òåì, ÷òî â êà÷åñòâå îñíîâàíè èñïîëüçóþò àììèàê, ãèäðîêñèä ùåëî÷íîãî èëè ùåëî÷íîçåìåëüíîãî ìåòàëëà. 6. Ñïîñîá ïî ï.5, îòëè÷àþùèéñ òåì, ÷òî â êà÷åñòâå îñíîâàíè èñïîëüçóþò âîäíûé ðàñòâîð àììèàêà ñ êîíöåíòðàöèåé àììèàêà îò 3 äî 15 ìàñ.%. 7. Ñïîñîá ïî ï.1 èëè 2, îòëè÷àþùèéñ òåì, ÷òî âçàèìîäåéñòâèå ôòîðñîäåðæàùåãî ñîåäèíåíè ìåòàëëà äë ýëåêòðîííûõ ëàìï ñ îñíîâàíèåì ïðîâîä ò ïðè ðÍ-çíà÷åíèè, èçìåðåííîì ïðè òåìïåðàòóðå ðåàêöèè, ðàâíîì 7-14. 8. Ïîðîøîê îêñèäà ìåòàëëà äë ýëåêòðîííûõ ëàìï ñî ñôåðè÷åñêèìè ÷àñòèöàìè ñðåäíåãî äèàìåòðà D50, îïðåäåëåííîãî íà ïðèáîðå MasterSizer ñîãëàñíî ASTM  822, ...

Refractory product containing beta-alumina

Изобретение относится к огнеупорному изделию на основе бета-глинозёма, которое выполнено в виде блока формования стеклянного листа путем переливания. Огнеупорное изделие имеет общее содержание Al 2 O 3 приблизительно от 50 до 97%, причем Al 2 O 3 содержит альфа-Al 2 O 3 и бета-глинозем. По меньшей мере 75% Al 2 O 3 содержится в виде бета-глинозема. Огнеупорное изделие имеет пористость, составляющую по меньшей мере приблизительно 0,1 об.%, но не более чем приблизительно 20 об.%. По меньшей мере на части изделия нанесено покрытие толщиной более 100 мкм, содержащее бета-глинозем. При формовании стеклянного изделия стеклянный материал контактирует с бета-глиноземом, и при протекании стеклянного материала оксид Mg-Al не образуется на бета-глиноземе на поверхности блока формования стекла. 8 з.п. ф-лы, 14 ил., 5 табл., РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 656 647 C1 (51) МПК C04B 35/107 (2006.01) C04B 35/113 (2006.01) C03B 5/26 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C04B 35/113 (2006.01); C04B 35/107 (2006.01); C04B 35/1015 (2006.01); C04B 41/5031 (2006.01); C04B 2235/3217 (2006.01); C03B 5/265 (2006.01) (21)(22) Заявка: 2016147567, 13.04.2012 13.04.2012 (73) Патентообладатель(и): СЭНТ-ГОБЭН КЕРАМИКС ЭНД ПЛАСТИКС, ИНК. (US) Дата регистрации: 06.06.2018 13.04.2011 US 61/475,151 (62) Номер и дата подачи первоначальной заявки, из которой данная заявка выделена: 2013148633 13.04.2012 2154044 C2, 10.08.2000. US 2010/0151232 A1, 17.06.2010. SU 391103 A, 25.07.1973. 2 6 5 6 6 4 7 R U Адрес для переписки: 119019, Москва, Гоголевский б-р, 11, этаж 3, "Гоулинг ВЛГ Интернэшнл Инк." Гизатуллина Евгения Михайловна (54) ОГНЕУПОРНОЕ ИЗДЕЛИЕ, СОДЕРЖАЩЕЕ БЕТА-ГЛИНОЗЁМ (57) Реферат: Изобретение относится к огнеупорному меньшей мере приблизительно 0,1 об.%, но не изделию на основе бета-глинозёма, которое более чем приблизительно 20 об.%. По меньшей выполнено в виде блока формования стеклянного мере на части изделия ...

Unshaped refractories

용선탈규(溶銑脫珪)받이, 제강용 레이들, RH장치 등의 내장용 내화물로서 사용하는 부정형내화물로서, 고내슬래그침투성과 고내식성과, 용적안정성이 모두 우수한 부정형내화물을 제공하는 것을 본 발명의 목적으로 하고, 그 해결수단으로서 0. 75㎜ 미만의 미분과 0. 75㎜∼10㎜의 골재를 포함하는 부정형내화물에 있어서, 상기 미분은 MgO를 10∼35질량％ 함유하며, 또한 MgO와 Al 2 O 3 의 합계량이 90질량％ 이상인 조성을 갖고, 또 이 미분속에는 MgO원으로서 페리클레스－스피넬입자를 5∼40질량％ 가지며, 상기 골재는 알루미나 및/ 또는 스피넬의 입자로 이루어지는 것을 이용한 부정형내화물을 개시한다. 부정형내화물, 페리클레스, 스피넬, 알루미나, 마그네시아. 미분, 골재

Abrasive grit with high alumina content grain in particular for application in applied and sintered abrasives for example in scarfing grinders for slabs of steel alloys

本发明涉及一种主要包含烧结氧化铝的磨粒，其特征在于，它包含大于96重量％的氧化铝、0.1－3重量％的二氧化钛和0.1－3重量％的氧化锰，二氧化钛+氧化锰的总量小于4重量％。优选地，二氧化钛和/或氧化锰的重量含量大于或等于0.5％。同样优选地，二氧化钛和/或氧化锰的重量含量小于或等于1.3％。

Slurry for casting under pressure and made of refractory ceramics for gas-turbine plants

FIELD: metallurgy. SUBSTANCE: invention relates to slurry for casting under pressure for production of refractory ceramics for use as thermal protection shield in gas turbine plants high temperature loop. Slurry contains mixture of grains of at least two materials with different thermal expansion factors, as well as xanthan as organic binder and thickener. Grain mixture has multimodal grains distribution by size, which looks as follows: 10–20 wt% of large-size grains with diameter of 1–5 mm, 10–20 wt% of average size grains with diameter of 0.5–1 mm and 60–80 wt% of small-sized grains with diameter of up to 0.5 mm. Distribution of grains by weight is selected such that total quantity of grains in mixture makes 100 wt%, and average size grains fraction at least by 20% consists of material with much low expansion factor. EFFECT: technical effect consists in making refractory ceramics with high resistance to thermal shock. 6 cl, 1 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 606 739 C2 (51) МПК C04B 35/636 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ 2014109925, 01.08.2012 (24) Дата начала отсчета срока действия патента: 01.08.2012 Дата регистрации: Приоритет(ы): (30) Конвенционный приоритет: 16.08.2011 EP 11177668.8 (73) Патентообладатель(и): СИМЕНС АКЦИЕНГЕЗЕЛЛЬШАФТ (DE) (56) Список документов, цитированных в отчете о поиске: EP 2168935 A1, 31.03.2010. SU (45) Опубликовано: 10.01.2017 Бюл. № 1 749816 A, 23.07.1980. EP 2329195 A1, 08.06.2011. RU 2267469 C1, 10.01.2006. RU 2122534 C1, 27.11.1998. (85) Дата начала рассмотрения заявки PCT на национальной фазе: 17.03.2014 (86) Заявка PCT: EP 2012/065002 (01.08.2012) (87) Публикация заявки PCT: 2 6 0 6 7 3 9 (43) Дата публикации заявки: 27.09.2015 Бюл. № 27 R U 19.12.2016 (72) Автор(ы): АНЕЗИРИС Христос (DE), ГРОТЕ Хольгер (DE), ЛАНГЕ Фридерике (DE), ГЕРЛАХ Нора (DE), КЛИППЕЛЬ Уве (FR), ШАФФЁНЕР Стефан (DE), ШПАЙХЕР Харм (DE) 2 6 0 6 ...

HEAT-INSULATING AND HEAT-CONDUCTING CONCRETE ON ALUMOPHOSPHATE BOND (OPTIONS)

1. Теплоизолирующий бетон на алюмофосфатной связке, включающий фосфатное связующее и смесь, отличающийся тем, что в качестве фосфатного связующего используют ортофосфорную кислоту концентрацией 65-75%, а в качестве смеси используют смесь разных фракций электрокорунда марки 25А, при следующем соотношении компонентов по FEPA 32GB 1971, мас.%: ! электрокорунд 28-36 мас.% фракции 20 электрокорунд 22-24 мас.% фракции 46 электрокорунд 15-20 мас.% фракции 80 электрокорунд 25-35 мас.% фракции 220 ортофосфорная кислота 10-12 сверх 100 мас.% ! 2. Теплопроводный бетон на алюмофосфатной связке, включающий фосфатное связующее и смесь, отличающийся тем, что в качестве фосфатного связующего используют ортофосфорную кислоту концентрацией 65-75%, а в качестве смеси используют смесь электрокорунда марки 25А фракции 220 и дополнительно смесь карбида кремния марки 53 С при следующем соотношении компонентов по FEPA 32GB 1971, мас.%: ! электрокорунд 25-35 мас.% фракции 220 карбид кремния 32-36 мас.% фракции 20 карбид кремния 18-24 мас.% фракции 46 карбид кремния 15-20 мас.% фракции 80 ортофосфорная кислота 10-12 сверх 100 мас.% РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2011 113 092 (13) A (51) МПК C04B 12/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (71) Заявитель(и): Закрытое акционерное общество "ПикКерама" (RU) (21)(22) Заявка: 2011113092/03, 05.04.2011 Приоритет(ы): (22) Дата подачи заявки: 05.04.2011 Адрес для переписки: 636037, Томская обл., г. Северск, ул. Лесная, 13Б, а/я 405, ЗАО "ПикКерама" A 2 0 1 1 1 1 3 0 9 2 электрокорунд 28-36 мас.% фракции 20 электрокорунд 22-24 мас.% фракции 46 электрокорунд 15-20 мас.% фракции 80 электрокорунд 25-35 мас.% фракции 220 ортофосфорная кислота 10-12 сверх 100 мас.% 2. Теплопроводный бетон на алюмофосфатной связке, включающий фосфатное связующее и смесь, отличающийся тем, что в качестве фосфатного связующего используют ортофосфорную кислоту концентрацией 65-75%, а в качестве смеси используют смесь ...

Sintered ceramic material, powder composition for obtaining same, method for manufacturing same and ceramic workpiece

本申请公开了一种烧结的陶瓷材料、用于获取其的粉末组合物、其制造方法和陶瓷工件。具体公开了一种具有高断裂韧性和弯曲强度的烧结的陶瓷材料，其是从氧化钇稳定的氧化锆粉末获得的，用于获得所述材料的粉末组合物，烧结的陶瓷工件和其制造工艺。一种本发明的方案的公开了一种烧结的陶瓷材料，其是从氧化钇稳定的氧化锆粉末得到的，包含1.8‑2.1摩尔％的氧化钇，其中所述烧结的陶瓷材料在室温下具有大于90％的四方相的比例，0.1至0.25μm的晶粒尺寸，弯曲强度为1150‑2100MPa，并且同时韧性大于10MPa.m 1/2 。这种材料可以用于不同的烧结的陶瓷工件，包括用于汽车领域的工件，不同的机械，装饰等应用例如钟表或用于生物医学应用的工件，等等。

Method of producing circular oxide compacted material

FIELD: process engineering. SUBSTANCE: invention relates to powder metallurgy, particularly, to production of circular oxide compacted article. It can be used for production of catalyst stationary bed used in shell-and-tube reactor pipes. Powder material containing at least one metal compound to be converted into metal oxide by heat treatment, or at least one metal oxide , or at least one metal oxide and at least one metal compound, are placed in loading chamber. Mechanical compaction is performed to preform ring-like article with side surface shaped to truncated cone expanding upward. Preformed article is heat treated at ≥100°C to destruct and/or chemically convert the article components with production of gas compound and final ring-like oxide article. EFFECT: higher quality of finished articles. 50 cl, 10 dwg, 5 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 520 284 C9 (51) МПК B22F 3/02 (2006.01) B22F 3/03 (2006.01) B30B 15/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) СКОРРЕКТИРОВАННОЕ ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ Примечание: библиография отражает состояние при переиздании 2011103478/02, 01.07.2009 (21)(22) Заявка: (24) Дата начала отсчета срока действия патента: 01.07.2009 DE DE US US 102008040093.9; 102008040094.7; 61/077,638; 61/077,601 (73) Патентообладатель(и): БАСФ СЕ (DE) (43) Дата публикации заявки: 10.08.2012 Бюл. № 22 (45) Опубликовано: 20.06.2014 (15) Информация о коррекции: Версия коррекции №1 (W1 C2) (48) Коррекция опубликована: 2 5 2 0 2 8 4 R U (56) Список документов, цитированных в отчете о поиске: US 2005/263926 A1, 01.12.2005. RU 2264886 C1, 27.11.2005. SU 1447571 A1, 30.12.1988. GB 1374952 A, 20.11.1974. US 6558144 B1, 06.05.2003 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 02.02.2011 (86) Заявка PCT: EP 2009/058233 (01.07.2009) (87) Публикация заявки PCT: WO 2010/000764 (07.01.2010) Адрес для переписки: 105064, Москва, а/я 88, ООО "Патентные поверенные Квашнин, Сапельников и партнеры", пат.пов. В.П. ...

Finely divided oxide powder and use of the same

Amorphous coke for special carbon material and its manufacturing method

Zirconium dioxide-base sintered material and method of its making

FIELD: refractory materials. SUBSTANCE: invention relates to refractory material based on zircon and zirconium dioxide and method of their preparing. The sintered material is prepared from charge comprising from 5% to 40% of zircon. Material shows the following chemical composition, wt.%: ZrO 2 + HfO 2 , 82-96; SiO 2 , 1.7-14; TiO 2 , 0.2-3; Y 2 O 3 , 0.4-5; Al 2 O 3 , 0.2-2.5; impurities, <1. Method of article making involves molding and calcinations of molded article at 1400-1650 C. The use of proposed method ensures to avoid cracks formation in making blocks of large size and mass. Refractory materials prepared from charge based on zircon and zirconium dioxide can be used in glass-melting furnaces. EFFECT: improved method of preparing, valuable properties of material. 9 cl, 3 tbl, 30 ex эо6бгосс пПч4 сэ (19) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ ВИ “” 2 201 906 ' (51) МПК” 13) С2 С 04 В 35/484 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 99108254103 , 19.04.1999 (24) Дата начала действия патента: 19.04.1999 (30) Приоритет: 22.04.1998 ЕВ 9805010 (46) Дата публикации: 10.04.2003 (56) Ссылки: Ч$ 5124287 А, 23.06.1992. ЗЦ 810648 А, 07.03.1981. $4 675036 А, 25.07.1979. $4 566803 А, 23.08.1977. КУ 2047586 СЛ, 10.11.1995. КУ 2058962 СЛ, 27.04.1996. ЦЗ 3228718 А, 11.01.1966. (98) Адрес для переписки: 109240, Москва, Котельническая наб., 1/15, корп.АЛЪ, офис № 8, "Константин Шилан и Ко.", пат.пов. К.А.Шилану, рег.№ 367 (71) Заявитель: СОСЬЕТЭ ЭРОПЭН ДЭ ПРОДЮИ РЕФРАКТЭР (ЕВ) (72) Изобретатель: ГИГОНИ Жак Мариус Луис (ЕК), ЖОРЖ Эрик Тьерри Жорж (ЕК), МАКГЭРРИ Чарльз Николас (Ц$) (73) Патентообладатель: СОСЬЕТЭ ЭРОПЭН ДЭ ПРОДЮИ РЕФРАКТЭР (ЕВ) (74) Патентный поверенный: Шилан Константин Александрович (54) СПЕЧЕННЫЙ МАТЕРИАЛ НА ОСНОВЕ ДВУОКИСИ ЦИРКОНИЯ И СПОСОБ ЕГО ИЗГОТОВЛЕНИЯ (57) Изобретение относится к огнеупорным материалам на основе двуокиси циркония и способу их изготовления. Огнеупорные материалы, полученные из шихты на ...

Ceramic honeycomb structural body and its manufacture method

一种陶瓷蜂窝结构体，其特征在于，其为具有被多孔质的隔壁隔开的多个孔道的陶瓷蜂窝结构体，对于所述隔壁而言，(a)气孔率为50～80％，(b)利用水银压入法测定的中值微孔直径为25～50μm，(c)(i)利用水银压入法测定的微孔直径20μm以下的累积微孔容积为总微孔容积的25％以下，(ii)利用水银压入法的测定的微孔直径大于20μm且50μm以下的累积微孔容积为总微孔容积的50％以上，以及(iii)利用水银压入法测定的微孔直径大于50μm的累积微孔容积为总微孔容积的12％以上。

Oxide magnetic material and manufacturing method thereof, ferrite sintered magnet and manufacturing method thereof

Honeycomb comprising cement exocuticle and cement

本发明涉及包含水泥外表皮及水泥的蜂窝结构。本文所揭示的是一种蜂窝催化剂载体结构，它包含蜂窝体及由水泥形成的施加于蜂窝体外表面的外层或表皮，所述水泥包含具有多峰粒度分布的无定形的玻璃粉末。所述多峰粒度分布是通过使用具有第一中值粒度的第一玻璃粉末及具有第二中值粒度的至少一种第二玻璃粉末实现的。在一些实施方式中，第一和第二玻璃粉末是由熔融二氧化硅组成的相同的无定形的玻璃。所述水泥还可以包括细颗粒的，胶体二氧化硅形式的亚微米大小的二氧化硅。所述水泥的热膨胀系数小于15x10 ‑7 /℃，干燥后优选约5x10 ‑7 /℃。

Refractory brick for float bath bottom and method for producing the same

Coarse-ceramic refractory material and refractory article made therefrom

FIELD: chemistry. ^ SUBSTANCE: invention relates to coarse-ceramic refractory material and a refractory article. According to the invention, the coarse-ceramic refractory material contains at least one granular refractory mineral basic component from basic refractory raw material based on MgO or MgO and CaO, and at least one granular refractory mineral additive which gives elasticity, in form of forsterite or forsterite material containing 50 wt % of a fraction with particle size of mainly 1-6 mm. The additive used can be a mixture which forms forsterite material, mainly in form of moulted parts, such as granules or briquettes with grain size between 0.3 and 8 mm. Said additive is contained in the refractory material in amount of 3-30 wt %. ^ EFFECT: high resistance of the refractory material to molten silicates and resistance to differential temperature. ^ 20 cl, 1 tbl, 3 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 412 132 (13) C2 (51) МПК C04B 35/043 (2006.01) C04B 35/03 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2008137587/03, 06.02.2007 (24) Дата начала отсчета срока действия патента: 06.02.2007 (73) Патентообладатель(и): РЕФРАТЕХНИК ХОЛДИНГ ГМБХ (DE) R U Приоритет(ы): (30) Конвенционный приоритет: 20.02.2006 DE 102006007781.4 (72) Автор(ы): КЛИШАТ Ханс-Юрген (DE), ФЕЛЛЬМЕР Карстен (DE), ВИРСИНГ Хольгер (DE) (43) Дата публикации заявки: 27.03.2010 Бюл. № 9 2 4 1 2 1 3 2 (45) Опубликовано: 20.02.2011 Бюл. № 5 2 4 1 2 1 3 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 22.09.2008 C 2 C 2 (56) Список документов, цитированных в отчете о поиске: RU 2149856 C1, 27.05.2000. ГАВРИШ Д.И. Огнеупорное производство. - М.: Металлургия, 1965, т.1, с. 367, 379. US 2026088 А, 31.12.1935. SU 903358 А, 07.02.1982. SU 1313833 А1, 30.05.1987. US 5576255 А, 19.11.1996. (86) Заявка PCT: EP 2007/051118 (06.02.2007) (87) Публикация заявки РСТ: WO 2007/096246 (30.08.2007) ...

Boron carbide composite and its fabrication method

본 발명은 기계적 특성이 우수한 새로운 조성을 갖는 탄화붕소 복합재료 및 그의 제조방법에 관한 것으로, 더욱 상세하게는 높은 파괴 인성을 갖고 경량 방탄용 세라믹 소재로 적용할 수 있는 탄화붕소 복합재료 및 그의 제조방법에 관한 것이다. 본 발명에서 개발된 탄화붕소 복합재료는 탄화붕소-탄화규소-붕화티탄-그래파이트(B 4 C-SiC-TiB 2 -C) 복합재료이며, 개발된 복합재료는 탄화붕소 복합재료의 파괴 인성 증가를 위한 기술적 한계를 극복할 수 있으며 비교적 낮은 온도에서 반응열간가압 소결공정을 사용하여 고밀도 탄화붕소 복합재료를 제조할 수 있다. 본 발명에서 개발된 기계적 특성이 우수한 탄화붕소 복합재료는 일반 산업용 내마모부품 및 원자력 관련 산업용 부품로 활용될 수 있으며 특히 개인용 및 헬기를 포함하는 군용기용 경량방탄 소재로 적극 활용될 수 있다.