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1. EP2403812 - CRYSTALLIZING GLASS SOLDER AND USE THEREOF

Office European Patent Office
Application Number 10706552
Application Date 03.03.2010
Publication Number 2403812
Publication Date 11.01.2012
Publication Kind B1
IPC
C03C 3/064
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
CCHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
3Glass compositions
04containing silica
062with less than 40% silica by weight
064containing boron
C03C 8/24
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
CCHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
8Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
24Fusion seal compositions being frit compositions having non-frit additions, i.e. for use as seals between dissimilar materials, e.g. glass and metal; Glass solders
C03C 27/04
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
CCHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
27Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
04Joining glass to metal by means of an interlayer
C03C 27/10
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
CCHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
27Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
06Joining glass to glass by processes other than fusing
10with the aid of adhesive specially adapted for that purpose
C03C 29/00
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
CCHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
29Joining metals with the aid of glass
H01M 8/02
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
02Details
CPC
C03C 3/064
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
CCHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
3Glass compositions
04containing silica
062with less than 40% silica by weight
064containing boron
C03C 8/24
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
CCHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
8Enamels; Glazes
24Fusion seal compositions being frit compositions having non-frit additions, i.e. for use as seals between dissimilar materials, e.g. glass and metal; Glass solders
C03C 27/044
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
CCHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
27Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
04Joining glass to metal by means of an interlayer
042consisting of a combination of materials selected from glass, glass-ceramic or ceramic material with metals, metal oxides or metal salts
044of glass, glass-ceramic or ceramic material only
C03C 27/10
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
CCHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
27Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
06Joining glass to glass by processes other than fusing
10with the aid of adhesive specially adapted for that purpose
C03C 29/00
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
CCHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
29Joining metals with the aid of glass
H01M 8/0282
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
02Details
0271Sealing or supporting means around electrodes, matrices or membranes
028Sealing means characterised by their material
0282Inorganic material
Applicants SCHOTT AG
Inventors GÖDEKE DIETER
BRIX PETER
CLAUSSEN OLAF
BESINGER JÖRN
SCHÖN BASTIAN
Designated States
Priority Data 102009011182 04.03.2009 DE
10001512 15.02.2010 EP
10706552 03.03.2010 EP
2010001301 03.03.2010 EP
Title
(DE) KRISTALLISIERENDES GLASLOT UND DESSEN VERWENDUNG
(EN) CRYSTALLIZING GLASS SOLDER AND USE THEREOF
(FR) VERRE DE SOUDURE CRISTALLISANT ET SON UTILISATION
Abstract
(DE)
Die vorliegende Erfindung betrifft kristallisierende Glaslote und Komposite, die insbesondere für Hochtemperaturanwendungen geeignet sind, und deren Anwendungen z.B. in Brennstoffzellen. Das kristallisierende Glaslot beinhaltet in Gew.-% 25 % bis 40 % SiO2, 45 % bis 60 % BaO, 5 % bis 15 % B2O3, 0 bis <2 % AI2O3 sowie zumindest ein Erdalkalioxid aus der Gruppe MgO, CaO und SrO wobei CaO 0 % bis 5 % beträgt und zeichnet sich durch einen thermischen Ausdehnungskoeffizienten im Temperaturbereich von 20 °C bis 300 °C von 8,0⋅10-6 K-1 bis 13,0⋅10-6 K-1 aus.

(EN)
The present invention relates to crystallizing glass solders and composites, which are suited in particular for high-temperature applications, and to applications thereof, such as in fuel cells. The crystallizing glass solder contains 25% to 40% by weight of SiO2, 45% to 60% of BaO, 5% to 15% of B2O3, 0 to <2% of AI2O3 and at least one alkaline earth oxide, selected from the group consisting of MgO, CaO and SrO, wherein CaO is 0% to 5% and is characterized by a thermal expansion coefficient of 8.0⋅10-6 K-1 to 13.0⋅10-6 K-1 in the temperature range of 20°C to 300°C.

(FR)
La présente invention concerne des verres de soudure et composites cristallisants qui conviennent notamment pour des applications à température élevée, et leurs utilisations par exemple dans des piles combustible. Le verre de soudure cristallisant contient en % en poids de 25 % à 40 % de SiO2, de 45 % à 60 % de BaO, de 5 % à 15 % de B2O3, de 0 à <2 % de AI2O3 ainsi qu'au moins un oxyde de métal alcalino-terreux du groupe composé de MgO, CaO et SrO, CaO représentant de 0 % à 5 %. Le verre de soudure cristallisant se caractérise par un coefficient de dilatation thermique dans la plage de température de 20° C à 300° C de 8,0⋅10-6 K-1 à 13,0⋅10-6 K-1.