Compliant sealants for solid oxide fuel cells and other ceramics
Abstract
A glass or glass-ceramic sealant for a SOFC having a coefficient of thermal expansion in the range of from about 8 to about 13.times.10.sup.-6 /.degree.C. and a viscosity of at least 10.sup.3 Pa-s at cell operating temperature. The sealant has a composition of SrO present in the range of from about 5 to about 60 mole percent, La.sub.2 O.sub.3 present in the range of from 0 to about 45 mole percent, Al.sub.2 O.sub.3 present in the range from 0 to about 15 mole percent, B.sub.2 O.sub.3 present in the range of from about 15 mole percent to about 80 mole percent, and SiO.sub.2 present in the range of from 0 to about 40 mole percent, wherein the material is a viscous fluid at cell operating temperatures of from about 600.degree. C. to about 1000.degree. C. The sealant may also be compounds of CaO present in the range of from 0 to about 35 mole percent, Al.sub.2 O.sub.3 present in the range from 0 to about 15 mole percent, B.sub.2 O.sub.3 present in the range of from about 35 mole percent to about 85 mole percent, and SiO.sub.2 present in the range of from 0 to about 30 mole percent.
- Inventors:
-
- Bolingbrook, IL
- Issue Date:
- Research Org.:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- OSTI Identifier:
- 870082
- Patent Number(s):
- 5453331
- Assignee:
- University of Chicago (Chicago, IL)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C03 - GLASS C03C - CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- DOE Contract Number:
- W-31109-ENG-38
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- compliant; sealants; solid; oxide; fuel; cells; ceramics; glass; glass-ceramic; sealant; sofc; coefficient; thermal; expansion; range; 13; times; 10; -6; degree; viscosity; pa-s; cell; operating; temperature; composition; sro; 60; mole; percent; 45; 15; 80; sio; 40; material; viscous; fluid; temperatures; 600; 1000; compounds; cao; 35; 85; 30; fuel cell; thermal expansion; fuel cells; oxide fuel; solid oxide; mole percent; operating temperature; operating temperatures; cell operating; compliant seal; ceramic seal; /429/
Citation Formats
Bloom, Ira D, and Ley, Kevin L. Compliant sealants for solid oxide fuel cells and other ceramics. United States: N. p., 1995.
Web.
Bloom, Ira D, & Ley, Kevin L. Compliant sealants for solid oxide fuel cells and other ceramics. United States.
Bloom, Ira D, and Ley, Kevin L. Sun .
"Compliant sealants for solid oxide fuel cells and other ceramics". United States. https://www.osti.gov/servlets/purl/870082.
@article{osti_870082,
title = {Compliant sealants for solid oxide fuel cells and other ceramics},
author = {Bloom, Ira D and Ley, Kevin L},
abstractNote = {A glass or glass-ceramic sealant for a SOFC having a coefficient of thermal expansion in the range of from about 8 to about 13.times.10.sup.-6 /.degree.C. and a viscosity of at least 10.sup.3 Pa-s at cell operating temperature. The sealant has a composition of SrO present in the range of from about 5 to about 60 mole percent, La.sub.2 O.sub.3 present in the range of from 0 to about 45 mole percent, Al.sub.2 O.sub.3 present in the range from 0 to about 15 mole percent, B.sub.2 O.sub.3 present in the range of from about 15 mole percent to about 80 mole percent, and SiO.sub.2 present in the range of from 0 to about 40 mole percent, wherein the material is a viscous fluid at cell operating temperatures of from about 600.degree. C. to about 1000.degree. C. The sealant may also be compounds of CaO present in the range of from 0 to about 35 mole percent, Al.sub.2 O.sub.3 present in the range from 0 to about 15 mole percent, B.sub.2 O.sub.3 present in the range of from about 35 mole percent to about 85 mole percent, and SiO.sub.2 present in the range of from 0 to about 30 mole percent.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1995},
month = {1}
}