Sintering aid for lanthanum chromite refractories
Abstract
An electronically conductive interconnect layer for use in a fuel cell or other electrolytic device is formed with sintering additives to permit densification in a monolithic structure with the electrode materials. Additions including an oxide of boron and a eutectic forming composition of Group 2A metal fluorides with Group 3B metal fluorides and Group 2A metal oxides with Group 6B metal oxides lower the required firing temperature of lanthanum chromite to permit densification to in excess of 94% of theoretical density without degradation of electrode material lamina. The monolithic structure is formed by tape casting thin layers of electrode, interconnect and electrolyte materials and sintering the green lamina together under common densification conditions.
- Inventors:
-
- Bolingbrook, IL
- Glen Ellyn, IL
- Downers Grove, IL
- Rolla, MO
- Issue Date:
- Research Org.:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- OSTI Identifier:
- 866613
- Patent Number(s):
- 4749632
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- DOE Contract Number:
- W-31109-ENG-38
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- sintering; lanthanum; chromite; refractories; electronically; conductive; interconnect; layer; fuel; cell; electrolytic; device; formed; additives; permit; densification; monolithic; structure; electrode; materials; additions; including; oxide; boron; eutectic; forming; composition; 2a; metal; fluorides; 3b; oxides; 6b; required; firing; temperature; excess; 94; theoretical; density; degradation; material; lamina; tape; casting; layers; electrolyte; green; common; conditions; monolithic structure; fuel cell; theoretical density; metal oxide; electrode material; metal oxides; electronically conductive; electrode materials; metal fluoride; lanthanum chromite; tape casting; electrolyte material; metal fluorides; electrolyte materials; forming composition; interconnect layer; tape cast; conductive interconnect; /429/29/501/
Citation Formats
Flandermeyer, Brian K, Poeppel, Roger B, Dusek, Joseph T, and Anderson, Harlan U. Sintering aid for lanthanum chromite refractories. United States: N. p., 1988.
Web.
Flandermeyer, Brian K, Poeppel, Roger B, Dusek, Joseph T, & Anderson, Harlan U. Sintering aid for lanthanum chromite refractories. United States.
Flandermeyer, Brian K, Poeppel, Roger B, Dusek, Joseph T, and Anderson, Harlan U. Fri .
"Sintering aid for lanthanum chromite refractories". United States. https://www.osti.gov/servlets/purl/866613.
@article{osti_866613,
title = {Sintering aid for lanthanum chromite refractories},
author = {Flandermeyer, Brian K and Poeppel, Roger B and Dusek, Joseph T and Anderson, Harlan U},
abstractNote = {An electronically conductive interconnect layer for use in a fuel cell or other electrolytic device is formed with sintering additives to permit densification in a monolithic structure with the electrode materials. Additions including an oxide of boron and a eutectic forming composition of Group 2A metal fluorides with Group 3B metal fluorides and Group 2A metal oxides with Group 6B metal oxides lower the required firing temperature of lanthanum chromite to permit densification to in excess of 94% of theoretical density without degradation of electrode material lamina. The monolithic structure is formed by tape casting thin layers of electrode, interconnect and electrolyte materials and sintering the green lamina together under common densification conditions.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 1988},
month = {Fri Jan 01 00:00:00 EST 1988}
}
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