초록 ▼

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 pe

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.

대표청구항 ▼

[ What is claimed is:] [20.] A method of operating a fuel cell generator comprising:providing a container comprising an iron aluminide alloy;providing a plurality of fuel cells inside in the container;providing a reducing atmosphere inside the container in contact with the iron aluminide alloy; andp

[ What is claimed is:] [20.] A method of operating a fuel cell generator comprising:providing a container comprising an iron aluminide alloy;providing a plurality of fuel cells inside in the container;providing a reducing atmosphere inside the container in contact with the iron aluminide alloy; andproviding an oxidizing atmosphere outside the container in contact with the iron aluminide alloy.