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Title: Sintering aid for lanthanum chromite refractories. [As interconnect layer between electrodes in fuel cells]

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:
; ; ;
Publication Date:
Research Org.:
Argonne National Lab., IL (USA)
OSTI Identifier:
6094830
Patent Number(s):
4,749,632
Application Number:
06/922,429, ON: DE88000837
Assignee:
Dept. of Energy
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
30 DIRECT ENERGY CONVERSION; CHROMIUM OXIDES; SINTERING; FUEL CELLS; LAYERS; LANTHANUM OXIDES; ADDITIVES; BORON OXIDES; FLUORIDES; OXIDES; REFRACTORIES; BORON COMPOUNDS; CHALCOGENIDES; CHROMIUM COMPOUNDS; DIRECT ENERGY CONVERTERS; ELECTROCHEMICAL CELLS; FABRICATION; FLUORINE COMPOUNDS; HALIDES; HALOGEN COMPOUNDS; LANTHANUM COMPOUNDS; OXYGEN COMPOUNDS; RARE EARTH COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; 300503* - Fuel Cells- Materials, Components, & Auxiliaries

Citation Formats

Flandermeyer, B K, Poeppel, R B, Dusek, J T, and Anderson, H U. Sintering aid for lanthanum chromite refractories. [As interconnect layer between electrodes in fuel cells]. United States: N. p., 1986. Web.
Flandermeyer, B K, Poeppel, R B, Dusek, J T, & Anderson, H U. Sintering aid for lanthanum chromite refractories. [As interconnect layer between electrodes in fuel cells]. United States.
Flandermeyer, B K, Poeppel, R B, Dusek, J T, and Anderson, H U. Thu . "Sintering aid for lanthanum chromite refractories. [As interconnect layer between electrodes in fuel cells]". United States. https://www.osti.gov/servlets/purl/6094830.
@article{osti_6094830,
title = {Sintering aid for lanthanum chromite refractories. [As interconnect layer between electrodes in fuel cells]},
author = {Flandermeyer, B K and Poeppel, R B and Dusek, J T and Anderson, H 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 = {1986},
month = {10}
}

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