Tape casting and sintering of strontium-doped lanthanum chromite for a planar solid oxide fuel cell bipolar plate

Journal Article · Tue Jan 01 00:00:00 EST 1991 · Journal of the American Ceramic Society; (United States)

DOI:https://doi.org/10.1111/j.1151-2916.1991.tb07311.x· OSTI ID:5066446

Tai, L W; Lessing, P A ^[1]

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1. New Mexico Inst. of Mining and Technology, Socorro, NM (US)

Nonagglomerated strontium-doped lanthanum chromite powders were prepared by a modified Pechini resinintermediate process and tape cast to form bipolar plates for a planar solid oxide fuel cell. An air-sintering technique for the strontium-doped lanthanum chromite was developed, which involved placing the green tape between Cr{sub 2}O{sub 3}-fired plates. The sintering process was found to be diffusion controlled, with densification beginning at the surface and proceeding to the interior. A bipolar plate of 2-mm thickness was fired to more than 9.3.5% theoretical density when fired at 1670{degrees}C for 7 h.

• OSTI ID: 5066446
• Journal Information: Journal of the American Ceramic Society; (United States), Vol. 74:1; ISSN 0002-7820
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
36 MATERIALS SCIENCE
CHROMIUM COMPOUNDS
CASTING
SINTERING
LANTHANUM COMPOUNDS
SOLID ELECTROLYTE FUEL CELLS
PLATES
DENSITY
DOPED MATERIALS
POWDERS
STRONTIUM ADDITIONS
ALLOYS
DIRECT ENERGY CONVERTERS
ELECTROCHEMICAL CELLS
FABRICATION
FUEL CELLS
MATERIALS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
STRONTIUM ALLOYS
TRANSITION ELEMENT COMPOUNDS
300503* - Fuel Cells- Materials
Components
& Auxiliaries
360201 - Ceramics
Cermets
& Refractories- Preparation & Fabrication