Material for the metal components of high-temperature fuel cell

Details Material for the metal components of high-temperature fuel cell Material for the metal components of high-temperature fuel cell

1993-07-16

1995-04-18

Maples, John S.

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

429 34, 420428, 148423, H01M 812, C22C 2706

Patent

active

054077583

ABSTRACT:
A material for metal components, such as bipolar plates and window foils of high-temperature fuel cell systems, has ceramic solid electrolytes made of yttrium-stabilized zirconium oxide. The material includes a chromium alloy having from 3 to 10 atom % iron and from 0.5 to 5 atom % of rare earth metal and/or rare earth metal oxide, having a coefficient of thermal expansion at a temperature of 200.degree. C. amounting to from 8.5.times.10.sup.-6 to 10.5.times.10.sup.-6 per kelvin by which the temperature rises, and attaining a value at 900.degree. C. in a range from 14.times.10.sup.-6 to 15.times.10.sup.-6.

REFERENCES:
patent: 3017265 (1962-01-01), McGurty et al.
patent: 3516865 (1970-06-01), Tedmon, Jr. et al.
Patent Abstract of Japan, vol. 15007, Jan. 9, 1991: & JP 890080871 (Kubota) Mar. 30, 1989.
Phys. Chem. 94, 978-981 (Mar. 1990) Tiffee et al. "Ceramic and Metallic Components for a Planar SOFC".

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