Verfahren zur Herstellung thermoelektrischer Elemente mit elektrischen Anschlusskontakten sowie ein mit dem Verfahren hergestelltes thermoelektrisches Modul

Bei dem Verfahren zur Herstellung thermoelektrischer Elemente wird zuerst auf eine Oberfläche eines metallischen Substrates eine Schicht mit einem Glaswerkstoff mittels eines Druckverfahrens und darauf lokal definiert eine elektrisch leitende Beschichtung für elektrische Anschlusskontakte aufgebracht. Mit mindestens einer thermischen Behandlung wird mindestens eine elektrisch isolierende Schicht, eine stoffschlüssige Verbindung und eine stoffschlüssige Verbindung, mit denen elektrische Anschlusskontakte ausgebildet sind, ausgebildet. Es wird dabei ein glaskeramischer Werkstoff gebildet, der einen thermischen Ausdehnungskoeffizient aufweist, der 0,1 · 10-6K-1bis 2 · 10-6K-1unterhalb des thermischen Ausdehnungskoeffizienten des Substratwerkstoffes liegt, und eine Glasübergangstemperatur größer 600 °C sowie eine Zusammensetzung SiO251,5 mol-% - 61 mol-%, BaO 18 mol-% - 32 mol- %, CaO 2 mol-% - 26 mol-%, B2O35 mol-% - 15 mol-%, MgO 0 mol-% - 24 mol- %, Al2O31 mol-% - 8 mol-%, La2O30 mol-% bis 14 mol-% und Y2O30 mol-% bis 6 mol-% aufweist. In the method for the production of thermoelectric elements, a layer with a glass material is first applied to a surface of a metallic substrate by means of a printing process and an electrically conductive coating for electrical connection contacts is locally defined thereon. At least one thermal treatment is used to form at least one electrically insulating layer, a material connection and a material connection with which electrical connection contacts are formed. A glass-ceramic material is formed which has a thermal expansion coefficient that is 0.1 · 10-6K-1 to 2 · 10-6K-1 below the thermal expansion coefficient of the substrate material, and a glass transition temperature greater than 600 ° C and a composition SiO251, 5 mol% - 61 mol%, BaO 18 mol% - 32 mol%, CaO 2 mol% - 26 mol%, B2O35 mol% - 15 mol%, MgO 0 mol% - 24 mol -%, Al2O31 mol% - 8 mol%, La2O30 mol% to 14 mol% and Y2O30 mol% to 6 mol%.

FUEL CELL STACK AND SEALING FOR A FUEL CELL STACK AND PRODUCTION METHODS FOR SUCH DEVICES

The invention relates to a seal (10) for gas-tight connection of two elements (12) of a fuel cell stack, having an electrically non-conductive spacing component (16) and having at least one soldered component (18) which is solid or viscous over its entire extent at the operating temperature of the fuel cell stack and couples the spacing component (16) to at least one of the elements of the fuel cell stack to be connected, in a gas-tight manner. The invention provides for the spacing component (16) to be composed of ceramic. The invention also relates to a fuel cell stack in which, according to the invention, a force flow which compresses the fuel cell stack in the axial direction from the distance component (16) acts directly on at least one of the elements (12) to be connected. The invention also relates to a method for producing seals (10) and a fuel cell stack.

Fuel cell stack and seal for a fuel cell stack, as well as a production method for it

BATHROOM APPLIANCE

A bathroom appliance is provided having a substrate made of metal or plastic and a coating, it is provided to consecutively electroplate metal layers made of copper, an alloy of copper and tin, and chromium and to subsequently apply a cover layer which is made of at least one of the elements of chromium, titanium, zirconium, gold, silver or platinum or is made of a chemical combination of the elements of titanium or chromium and nitrogen and, optionally, carbon, the cover layer being produced on the electroplated chromium layer by means of a PVD method.

Natriumionen leitendes Element für die Anwendung in elektrochemischen Zellen sowie ein Verfahren zu dessen Herstellung

Natriumionen leitendes Element für die Anwendung in elektrochemischen Zellen, insbesondere als Festelektrolyt/Separator in Hochtemperaturbatterien, bei dem auf einer Oberfläche eines porösen Substrats eine durch Sinterung erhaltene Beschichtung ausgebildet ist, die mit dem System Na2O-SiO2-R22O5-R12O3 wobei R1=Sc, Y, La und/oder B und R2= P, Sb, Bi, Sn, Te, Zn und/oder Ge ist, gebildet ist, dadurch gekennzeichnet, dassdie Beschichtung bei einer Temperatur von maximal 1100 °C ausgebildet ist; unddas Substrat aus einem elektrisch leitenden keramischen Werkstoff oder einem Metall oder einer Metalllegierung gebildet ist.

Verfahren zur Herstellung thermoelektrischer Elemente mit elektrischen An-schlusskontakten sowie ein mit dem Verfahren hergestelltes thermoelektrisches Modul

Bei dem Verfahren wird zuerst auf mindestens eine Oberfläche eines metallischen Substrates eine Schicht mit einem Glaswerkstoff mittels eines Druckverfahrens und auf dieser Schicht lokal definiert eine elektrisch leitende Beschichtung für die Ausbildung elektrischer Anschlusskontakte aufgebracht. Mit mindestens einer thermischen Behandlung werden mindestens eine elektrisch isolierende Schicht durch Erweichen, Versintern und Kristallisation von Partikeln des Glaswerkstoffs zu einem glaskeramischen Werkstoff, eine stoffschlüssige Verbindung zwischen dem Substrat und der/den elektrisch isolierenden Schicht(en) und eine stoffschlüssige Verbindung zwischen der Oberfläche(n) der/den elektrisch isolierenden Schicht(en) und Partikeln mit denen elektrische Anschlusskontakte ausgebildet. Es wird dabei ein glaskeramischer Werkstoff gebildet, der einen thermischen Ausdehnungskoeffizient aufweist, der 0,1 · 10-6K-1bis 2 · 10-6K-1unterhalb des thermischen Ausdehnungskoeffizienten des Substratwerkstoffes liegt und eine Glasübergangstemperatur größer 600 °C aufweist. Außerdem werden lokal definiert thermoelektrische Schenkel ausgebildet oder es werden thermoelektrische Schenkel stoffschlüssig mit den elektrischen Leiterbahnen verbunden. In the method, a layer with a glass material is first applied to at least one surface of a metallic substrate by means of a printing process and an electrically conductive coating for the formation of electrical connection contacts is applied to this layer in a locally defined manner. With at least one thermal treatment, at least one electrically insulating layer through softening, sintering and crystallization of particles of the glass material to form a glass-ceramic material, a material connection between the substrate and the electrically insulating layer (s) and a material connection between the surface ( n) the electrically insulating layer (s) and particles with which electrical connection contacts are formed. A glass-ceramic material is ...

COMPOSITION FOR PRODUCING GLASS SOLDERS FOR HIGH-TEMPERATURE APPLICATIONS AND USE THEREOF

The invention relates to compositions for the manufacture of glass solders for high-temperature applications up to temperatures of approx. 1000° C. and to their use. SiO2 having a proportion in the range from 48 mol-% to 62 mol %, Al2O3 having a proportion in the range from 0.5 mol % to 6 mol %, B2O3 having a proportion in the range 4 mol % to 12 mol % and BaO having a proportion in the range 12 mol % to 30 mol % as well as CaO having a proportion in the range from 2.5 mol % to 15 mol %, or an R2O3 having a proportion in the range 0.5 mol % to 20 mol % are contained in the composition in accordance with the invention, where the R2O3 is selected from La2O3, Y2O3, Sc2O3 and from a further oxide of a chemical element from the series of lanthanoids. In this respect, an SiO2:BaO ratio in the range from 1.9 to 4 is observed and no ZrO2 is contained.

Zusammensetzung für die Herstellung von Glaslotenfür Hochtemperaturanwendungen sowie derenVerwendung

Die Erfindung betrifft Zusammensetzungen für die Herstellung von Glasloten für Hochtemperaturanwendungen bis zu Temperaturen von ca. 1000°C sowie deren Verwendung. In der erfindungsgemäßen Zusammensetzung sind SiO2 mit einem Anteil im Bereich von 48 mol-% bis 62 mol-%, Al2O3 mit einem Anteil im Bereich von 0,5 mol-% bis 6 mol-%, B2O3 mit einem Anteil im Bereich 0,5 mol-% bis 12 mol-% und BaO mit einem Anteil im Bereich 12 mol-% bis 30 mol-% sowie CaO mit einem Anteil im Bereich von 0,5 mol-% bis 15 mol-%, oder ein R2O3 einem Anteil im Bereich 0,5 mol-% bis 20 mol-%; oder mindestens ein Oxid vierwärtiger Kationen enthalten. Dabei ist ein SiO2:BaO-Verhältnis im Bereich von 1,9 bis 4 eingehalten. The invention relates to compositions for the production of glass solders for high temperature applications up to temperatures of about 1000 ° C and their use. In the composition of the present invention, SiO 2 in a content ranging from 48 mol% to 62 mol%, Al 2 O 3 in a proportion ranging from 0.5 mol% to 6 mol%, B2O3 in a content ranging from 0.5 mol% to 12 mol% and BaO in a proportion in the range of 12 mol% to 30 mol% and CaO in a proportion in the range of 0.5 mol% to 15 mol%, or a R2O3 a proportion in Range 0.5 mol% to 20 mol%; or contain at least one oxide of vierwärtiger cations. An SiO 2: BaO ratio in the range of 1.9 to 4 is maintained.

Pumpenkörper für eine medizinische Zahnradpumpe

The invention relates to a pump body (10) used in a medical gear-pump for suction and irrigation. Said pump body comprises a pot-shaped pump housing (12) with two cylindrical openings (18, 20) that accommodate two meshing gear wheels (30, 42). The driving gear wheel (30) is housed in the opening (18) without using a journal bearing. A cover (16) closes the pot-shaped pump housing (12). The invention is characterised in that a pin (40) protrudes from a base (14) of the pump housing (12) and that the travelling gear wheel (42) is pushed onto said pin.

Medizinische Zahnradpumpe

EINRICHTUNG ZUM TRENNEN VON GESCHNITTENER BRETTWARE

Festkörperelektrolyt für den Einsatz in Lithium-Luft- oder Lithium-Wasser-Akkumulatoren

Die Erfindung betrifft Festkörperelektrolyte für den Einsatz in Lithium-Luft- bzw. Lithium-Wasser-Akkumulatoren. Aufgabe der Erfindung ist es, Festelektrolyt für den Einsatz in Lithium-Luft- oder Lithium-Wasser-Akkumulatoren zur Verfügung zu stellen, der eine ausreichende Festigkeit, für Lithiumionen gute Leitfähigkeit, eine Gasdichtheit und Wasserresistenz aufweist und dabei kostengünstig herstellbar ist. Der erfindungsgemäße Festkörperelektrolyt weist ein offenporöses keramisches Trägersubstrat auf. Dabei ist zumindest auf der der Kathode zugewandten Oberfläche mindestens eine für Lithium-Ionen leitfähige Schicht, mit einer elektrischen Leitfähigkeit von mindestens 105 Scm1, die gasdicht ist, ausgebildet. Das Trägersubstrat weist dabei eine größere mechanische Festigkeit und Schichtdicke als die mindestens eine Schicht auf.

Brennstoffzellenstapel und Dichtung für einen Brennstoffzellenstapel sowie deren Herstellungsverfahren

Die Erfindung betrifft eine Dichtung (10) zum gasdichten Verbinden zweier Elemente (12) eines Brennstoffzellenstapels, mit einer elektrisch nicht leitenden Distanzkomponente (16) und mindestens einer bei Betriebstemperatur des Brennstoffzellenstapels über ihre gesamte Ausdehnung festen oder viskosen Lotkomponente (18), die die Distanzkomponente (16) mit mindestens einem der zu verbindenden Elemente des Brennstoffzellenstapels gasdicht koppelt. Erfindungsgemäß ist vorgesehen, dass die Distanzkomponente (16) aus Keramik besteht. Die Erfindung betrifft weiterhin einen Brennstoffzellenstapel bei dem erfindungsgemäß vorgesehen ist, dass ein den Brennstoffzellenstapel in axiale Richtung komprimierender Kraftfluss von der Distanzkomponente (16) direkt auf zumindest eines der zu verbindenden Elemente (12) übergeht. Ferner betrifft die Erfindung Herstellungsverfahren für Dichtungen (10) und Brennstoffzellenstapel.

Verbundkörper

Bei einem Verfahren zur Herstellung von Verbundkörpern durch Aufbringen einer fest haftenden Schicht auf Substraten aus Kunststoff (1c) oder Metall, insbesondere Edelstahl (1e), Messing (1b), Aluminium (1a) oder Zink (1d) ist vorgesehen, dass auf dem Substrat eine Schicht aus Kohlenstoff (5) mittels chemischer Gasphasenabscheidung (CVD) und auf der Kohlenstoffschicht (5) eine Hartstoffschicht (6) mittels physikalischer Gasphasenabscheidung (PVD) abgeschieden wird.

Natriumionen leitendes Element für die Anwendung in elektrochemischen Zellen sowie ein Verfahren zu dessen Herstellung

Die Erfindung betrifft Natriumionen leitende Elemente für die Anwendung in elektrochemischen Zellen, insbesondere als Festelektrolyt/Separator in Hochtemperaturbatterien. Dabei ist auf einer Oberfläche eines porösen Substrats eine durch Sinterung bei einer Temperatur von maximal 1100°C erhaltene Beschichtung ausgebildet, die mit dem System Na2O-SiO2-R22O5-R12O3, wobei R1 = Sc, Y, La und/oder B und R2 = P, Sb, Bi, Sn, Te, Zn und/oder Ge ist, gebildet ist.

FUEL CELL STACK AND SEAL FOR A FUEL CELL STACK, AS WELL AS A PRODUCTION METHOD FOR IT

The invention relates to a seal (10) for gas-tight connection of two elements (12) of a fuel cell stack, having an electrically non-conductive spacing component (16) and having at least one soldered component (18) which is solid or viscous over its entire extent at the operating temperature of the fuel cell stack and couples the spacing component (16) to at least one of the elements of the fuel cell stack to be connected, in a gas-tight manner. The invention provides for the spacing component (16) to be composed of ceramic. The invention also relates to a fuel cell stack in which, according to the invention, a force flow which compresses the fuel cell stack in the axial direction from the distance component (16) acts directly on at least one of the elements (12) to be connected. The invention also relates to a method for producing seals (10) and a fuel cell stack. © KIPO & WIPO 2009 ...

FUEL CELL STACK AND SEAL FOR A FUEL CELL STACK, AS WELL AS A PRODUCTION METHOD FOR IT

The invention relates to a sealing for the gas-tight connection of two elements of a fuel cell stack comprising an electrically non-conducting spacer component and at least one solder component solid or viscous over its entire extension at the operating temperature of the fuel cell stack and coupling the spacer component to at least one of the elements to be connected of the fuel cell stack in a gas-tight manner. According to the invention it is envisaged that the spacer component is formed of a ceramic material. The invention further relates to a fuel cell stack in which, according to the invention, it is envisaged that a distribution of forces compressing the fuel cell stack in the axial direction is directly transmitted to at least one of the elements to be connected by the spacer component. The invention further relates to production methods for seals and fuel cell stacks.

Solid-state electrolyte for use in lithium-air batteries or in lithium-water batteries

The invention relates to solid-state electrolytes for use in lithium-air batteries or in lithium-water batteries. It is the object of the invention to provide solid electrolyte for use in lithium-air batteries or lithium-water batteries, with the solid electrolyte having sufficient strength, good conductivity for lithium ions, imperviousness for gas and water resistance and being inexpensive in manufacture. The solid-state electrolyte in accordance with the invention has an open-pore ceramic carrier substrate. In this respect, at least one layer which is conductive for lithium ions, which has an electrical conductivity of at least 10 −5 Scm −1 and which is gas-impervious is formed on the surface facing the cathode. In this respect, the carrier substrate has greater mechanical strength and a larger layer thickness than the at least one layer.

Fuel cell stack and seal for a fuel cell stack, as well as a production method for it

The invention relates to a seal (10) for gas-tight connection of two elements (12) of a fuel cell stack, having an electrically non-conductive spacing component (16) and having at least one soldered component (18) which is solid or viscous over its entire extent at the operating temperature of the fuel cell stack and couples the spacing component (16) to at least one of the elements of the fuel cell stack to be connected, in a gas-tight manner. The invention provides for the spacing component (16) to be composed of ceramic. The invention also relates to a fuel cell stack in which, according to the invention, a force flow which compresses the fuel cell stack in the axial direction from the distance component (16) acts directly on at least one of the elements (12) to be connected. The invention also relates to a method for producing seals (10) and a fuel cell stack.

SANITARY OBJECT

A method for manufacturing composite bodies is provided by applying a firmly adhering layer to substrates composed of plastic or metal, particularly stainless steel, brass, aluminum, or zinc, it is provided that a layer composed of carbon is deposited on the substrate by means of chemical vapor deposition and a hard material layer is deposited on the carbon layer by means of physical vapor deposition.

SOLID-STATE ELECTROLYTE FOR USE IN LITHIUM-AIR BATTERIES OR IN LITHIUM-WATER BATTERITES

The invention relates to solid-state electrolytes for use in lithium-air batteries or in lithium-water batteries. It is the object of the invention to provide solid electrolyte for use in lithium-air batteries or lithium-water batteries, with the solid electrolyte having sufficient strength, good conductivity for lithium ions, imperviousness for gas and water resistance and being inexpensive in manufacture. The solid-state electrolyte in accordance with the invention has an open-pore ceramic carrier substrate. In this respect, at least one layer which is conductive for lithium ions, which has an electrical conductivity of at least 10Scmand which is gas-impervious is formed on the surface facing the cathode. In this respect, the carrier substrate has greater mechanical strength and a larger layer thickness than the at least one layer. 1. A solid-state electrolyte for use in lithium-air batteries or lithium-water batteries , comprising an open-pore ceramic carrier substrate which has at least one layer which is conductive for lithium ions , which has an electrical conductivity of at least 10-5 Scm-1 , which is gas-impervious and which is formed at least on the surface facing the cathode , and the carrier substrate has greater mechanical strength and a larger layer thickness than the at least one layer.2. A solid-state electrolyte in accordance with claim 1 , characterized in that the carrier substrate has a porosity of at least 15% and a maximum of 60%; and/or in that the pores have a pore size in the range of 1 μm-10 μm and/or a thickness in the range from 20 μm-500 μm claim 1 , with the at least one layer having a thickness between 10 μm and 50 μm.3. A solid-state electrolyte in accordance with claim 1 , characterized in that the carrier substrate comprises a ceramic material which is selected from Al2O3 claim 1 , ZrO2 claim 1 , MgAl2O4 claim 1 , SiC and Si3N4.4. A solid-state electrolyte in accordance with claim 1 , characterized in that the thickness of the ...

Pump body for a medical gear pump

A pump body for a medical gear pump for sucking and irrigating has a pot-like pump housing with two cylindrical openings, in which two meshing gearwheels are embedded. The driving gearwheel is, without pivot bearing, embedded in the opening. A lid is used for closing the pot-like pump housing. A trunnion protrudes from a bottom of the pump housing, onto which trunnion the driven gearwheel is mounted.

Sanitary object

In a method for manufacturing composite bodies by applying a firmly adhering layer to substrates composed of plastic (1c) or metal, particularly stainless steel (1e), brass (1b), aluminum (1a), or zinc (1d), it is provided that a layer composed of carbon (5) is deposited on the substrate by means of chemical vapor deposition (CVD) and a hard material layer (6) is deposited on the carbon layer (5) by means of physical vapor deposition (PVD).

COMPOSITION FOR PRODUCING GLASS SOLDERS FOR HIGH-TEMPERATURE APPLICATIONS AND USE THEREOF

The invention relates to compositions for the manufacture of glass solders for high-temperature applications up to temperatures of approx. 1000° C. and to their use. SiO2 having a proportion in the range from 48 mol-% to 62 mol %, Al2O3 having a proportion in the range from 0.5 mol % to 6 mol %, B2O3 having a proportion in the range 4 mol % to 12 mol % and BaO having a proportion in the range 12 mol % to 30 mol % as well as CaO having a proportion in the range from 2.5 mol % to 15 mol %, or an R2O3 having a proportion in the range 0.5 mol % to 20 mol % are contained in the composition in accordance with the invention, where the R2O3 is selected from La2O3, Y2O3, Sc2O3 and from a further oxide of a chemical element from the series of lanthanoids. In this respect, an SiO2:BaO ratio in the range from 1.9 to 4 is observed and no ZrO2 is contained. 1. A composition for producing glass solders for high-temperature applications in which{'sub': '2', 'SiOhaving a proportion in the range from 48 mol % to 62 mol %;'}{'sub': 2', '3, 'AlOhaving a proportion in the range from 0.5 mol % to 6 mol %;'}{'sub': 2', '3, 'BOhaving a proportion in the range from 4 mol % to 12 mol %; and'}BaO having a proportion in the range from 12 mol % to 30 mol %; as well asCaO having a proportion in the range from 2.5 mol % to 15 mol %; and/or{'sub': 2', '3, 'an ROhaving a proportion in the range from 0.5 mol % to 15 mol % are contained, wherein'}{'sub': 2', '3', '2', '3', '2', '3', '2', '3, 'the ROis selected from LaO, YO, ScOand a further oxide of a chemical element from the series of lanthanoids'}{'sub': 2', '2, 'and in so doing an SiO:BaO ratio in the range of 1.9 to 4 is observed and no ZrOis contained.'}2. A composition in accordance with claim 1 , characterized in that the portion of contained BaO lies in the range from 16 mol % to 30 mol % with LaOcontained in the composition.3. A composition in accordance with claim 1 , characterized in that with CaO contained in the composition claim 1 , an ...

ELEMENT CONDUCTING SODIUM IONS FOR USE IN ELECTROCHEMICAL CELLS AND METHOD FOR PRODUCING IT

The invention relates to sodium-ion-conducting elements for use in electrochemical cells, more particularly as solid electrolyte/separator in high-temperature batteries. In these elements, a surface of a porous substrate bears a coating which is obtained by sintering at a temperature of not more than 1100° C. and which is formed with the system NaO—SiO—RO—R1O, in which R1=Sc, Y, La and/or B and R2=P, Sb, Bi, Sn, Te, Zn and/or Ge. 1. A sodium-ion-conducting element for use in electrochemical cells , more particularly as solid electrolyte/separator in high-temperature batteries , wherein a surface of a porous substrate bears a coating which is obtained by sintering at a temperature of not more than 1100° C. and which is formed with the system NaO—SiO—RO—R1O , in which R1=Sc , Y , La and/or B and R2=P , Sb , Bi , Sn , Te , Zn and/or Ge.2. The element as claimed in claim 1 , characterized in that the coating has a thickness in the 3 μm to 750 μm range.3. The element as claimed in claim 1 , characterized in that the material of the coating has a coefficient of thermal expansion which is lower claim 1 , preferably lower by not more than 1.5 ppm/K claim 1 , than the coefficient of thermal expansion of the substrate material.4. The element as claimed in claim 1 , characterized in that the substrate is an element in the shape of a plate claim 1 , honeycomb claim 1 , or tube which is open at one side.5. The element as claimed in claim 1 , characterized in that the substrate is formed of AlO claim 1 , mullite claim 1 , spinel claim 1 , fosterite claim 1 , ZrO claim 1 , a silicatic ceramic material claim 1 , an electrically conducting ceramic material claim 1 , or a metal or a metal alloy.6. The element as claimed in claim 1 , characterized in that electrically conducting ceramic substrate material consists of Nb-doped TiO claim 1 , CaLaTiOor SrYTiOor of a mixture of these components with AlO claim 1 , mullite claim 1 , spinel claim 1 , fosterite claim 1 , ZrOor a silicatic ...

Sanitary item

Sanitary object made of a substrate and a coating comprises: (a) substrate comprising a metal or plastic; (b) galvanic coating with successive metal layers made of copper, alloy of copper and tin and chrome; and (c) covering layer comprising at least one of the elements of chromium, titanium, zirconium, gold, silver or platinum, or a chemical compound of the elements titanium or chromium with nitrogen and optionally carbon, which is produced by means of a physical vapor deposition method on the electrodeposited chromium layer. An independent claim is also included for producing the sanitary objects of substrates made of metal or plastic with decorative metallic surfaces comprising: (i) coating the substrate with a first metal layer of copper; (ii) coating the substrate with a second galvanic metal layer made of alloy of copper and tin; (iii) coating the substrate with electrodeposited chromium layer; and (iv) coating the substrate with the covering layer in physical vapor deposition process.

Composition for producing glass solders for high-temperature applications and use thereof

The invention relates to compositions for producing glass solders for high-temperature applications up to temperatures of approximately 1000 °C and to the use thereof. The composition according to the invention contains SiO 2 having a fraction in the range of 48 mol% to 62 mol%, Al 2 O 3 having a fraction in the range of 0.5 mol% to 6 mol%, B 2 O 3 having a fraction in the range of 4 mol% to 12 mol%, BaO having a fraction in the range of 12 mol% to 30 mol%, and CaO having fraction in the range of 2.5 mol% to 15 mol%, or an R 2 O 3 having a fraction in the range of 0.5 mol% to 20 mol%, wherein the R 2 O 3 is selected from La 2 O 3 , Y 2 O 3 , Sc 2 O 3 , and an additional oxide of a chemical element from the lanthanide series. An SiO 2 : BaO ratio in the range of 1.9 to 4 is adhered to, and no ZrO 2 is contained.

Solid state electrolyte for use in lithium-air or lithium-water storage batteries

The invention relates to solid-state electrolyte for use in lithium-air or lithium-water storage batteries. The problem addressed by the invention is that of providing solid-state electrolyte for use in lithium-air or lithium-water storage batteries that has adequate strength, good conductivity for lithium-ions, gas tightness and water resistance, and that is inexpensive to produce. The solid-state electrolyte according to the invention has an open-porous, ceramic carrier substrate. At least one layer conductive for lithium-ions which has an electrical conductivity of at least 10 -5 Scm-1 and which is gas-tight, is formed on at least on the surface facing the cathode. The carrier substrate has a greater mechanical strength and layer thickness than the at least one layer.

Pumpenkörper für eine medizinische zahnradpumpe

Ein Pumpenkörper (10) für eine medizinische Zahnradpumpe zum Saugen und Spülen weist ein topfartiges Pumpengehäuse (12) mit zwei zylindrischen Öffnungen (18, 20) auf, in denen zwei kämmende Zahnräder (30, 42) aufgenommen sind. Das treibende Zahnrad (30) ist zapfenlagerfrei in der Öffnung (18) aufgenommen. Ein Deckel (16) dient zum Verschliessen des topfartigen Pumpengehäuses (12). Es ist vorgesehen, dass von einem Boden (14) des Pumpengehäuses (12) ein Zapfen (40) vorspringt, auf den das mitlaufende Zahnrad (42) aufgeschoben ist.

Composition for producing glass solders for high-temperature applications and use thereof

A composition is for the manufacture of glass solders for high-temperature applications up to temperatures of approximately 1000° C., which composition, having no ZrO 2 , has SiO 2 at a proportion in the range from 48 mol-% to 62 mol %, Al 2 O 3 at a proportion in the range from 0.5 mol % to 6 mol %, B 2 O 3 at a proportion in the range 4 mol % to 12 mol %, BaO at a proportion in the range 12 mol % to 30 mol %, and either CaO at a proportion in the range from 2.5 mol % to 15 mol %, or an R 2 O 3 at a proportion in the range 0.5 mol % to 20 mol % where the R 2 O 3 is selected from La 2 O 3 , Y 2 O 3 , Sc 2 O 3 , and from a further oxide of a chemical element from the series of lanthanoids, wherein the SiO 2 :BaO ratio is in the range from 1.9 to 4.