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Title: Barium oxide, calcium oxide, magnesia, and alkali oxide free glass

Abstract

A glass composition consisting essentially of about 10-45 mole percent of SrO; about 35-75 mole percent SiO.sub.2; one or more compounds from the group of compounds consisting of La.sub.2O.sub.3, Al.sub.2O.sub.3, B.sub.2O.sub.3, and Ni; the La.sub.2O.sub.3 less than about 20 mole percent; the Al.sub.2O.sub.3 less than about 25 mole percent; the B.sub.2O.sub.3 less than about 15 mole percent; and the Ni less than about 5 mole percent. Preferably, the glass is substantially free of barium oxide, calcium oxide, magnesia, and alkali oxide. Preferably, the glass is used as a seal in a solid oxide fuel/electrolyzer cell (SOFC) stack. The SOFC stack comprises a plurality of SOFCs connected by one or more interconnect and manifold materials and sealed by the glass. Preferably, each SOFC comprises an anode, a cathode, and a solid electrolyte.

Inventors:
;
Issue Date:
Research Org.:
Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
Sponsoring Org.:
USDOE
OSTI Identifier:
1096020
Patent Number(s):
8541327
Application Number:
13/278,438
Assignee:
U.S. Department of Energy (Washington, DC)
Patent Classifications (CPCs):
C - CHEMISTRY C03 - GLASS C03C - CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS
DOE Contract Number:  
FC07-061D14739
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Lu, Peizhen Kathy, and Mahapatra, Manoj Kumar. Barium oxide, calcium oxide, magnesia, and alkali oxide free glass. United States: N. p., 2013. Web.
Lu, Peizhen Kathy, & Mahapatra, Manoj Kumar. Barium oxide, calcium oxide, magnesia, and alkali oxide free glass. United States.
Lu, Peizhen Kathy, and Mahapatra, Manoj Kumar. Tue . "Barium oxide, calcium oxide, magnesia, and alkali oxide free glass". United States. https://www.osti.gov/servlets/purl/1096020.
@article{osti_1096020,
title = {Barium oxide, calcium oxide, magnesia, and alkali oxide free glass},
author = {Lu, Peizhen Kathy and Mahapatra, Manoj Kumar},
abstractNote = {A glass composition consisting essentially of about 10-45 mole percent of SrO; about 35-75 mole percent SiO.sub.2; one or more compounds from the group of compounds consisting of La.sub.2O.sub.3, Al.sub.2O.sub.3, B.sub.2O.sub.3, and Ni; the La.sub.2O.sub.3 less than about 20 mole percent; the Al.sub.2O.sub.3 less than about 25 mole percent; the B.sub.2O.sub.3 less than about 15 mole percent; and the Ni less than about 5 mole percent. Preferably, the glass is substantially free of barium oxide, calcium oxide, magnesia, and alkali oxide. Preferably, the glass is used as a seal in a solid oxide fuel/electrolyzer cell (SOFC) stack. The SOFC stack comprises a plurality of SOFCs connected by one or more interconnect and manifold materials and sealed by the glass. Preferably, each SOFC comprises an anode, a cathode, and a solid electrolyte.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Sep 24 00:00:00 EDT 2013},
month = {Tue Sep 24 00:00:00 EDT 2013}
}

Works referenced in this record:

Strontium aluminosilicate glasses for flat panel displays
patent, May 1992


Method of Joining a Pair of Silicon Nitride Parts
patent, May 1975


Glass-ceramic seals for use in solid oxide fuel cells
patent, March 2010


Sealing frits
patent, September 2001


Alkali-free composite sealant materials for solid oxide fuel cells
patent, April 2009


High temperature sealing glass
patent, September 2000


Low alkali sealing frits, and seals and devices utilizing such frits
patent, May 2007