Iron aluminide alloy container for solid oxide fuel cells

Details Iron aluminide alloy container for solid oxide fuel cells Iron aluminide alloy container for solid oxide fuel cells

1998-05-26

2000-09-05

Gorgos, Kathryn

Chemistry: electrical current producing apparatus, product, and

Having magnetic field feature

429 34, 429176, 428 341, H01M 800, H01M 200, H01M 400

Patent

active

061140589

ABSTRACT:
A container for fuel cells is made from an iron aluminide alloy. The container alloy preferably includes from about 13 to about 22 weight percent Al, from about 2 to about 8 weight percent Cr, from about 0.1 to about 4 weight percent M selected from Zr and Hf, from about 0.005 to about 0.5 weight percent B or from about 0.001 to about 1 weight percent C, and the balance Fe and incidental impurities. The iron aluminide container alloy is extremely resistant to corrosion and metal loss when exposed to dual reducing and oxidizing atmospheres at elevated temperatures. The alloy is particularly useful for containment vessels for solid oxide fuel cells, as a replacement for stainless steel alloys which are currently used.

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