Iron chromium alloy resists heat, conducts electricity.(Metals)

Advanced Materials & Processes,  June, 2004  

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An iron-chromium alloy has been developed for good high-temperature stability, high electrical conductivity, and low coefficient of expansion by ThyssenKrupp AG, Germany. Called Crofer 22 APU, the alloy was developed for the interconnector plates of solid oxide fuel cells (SOFC). The SOFC stack is made up of several interconnected fuel cells.

Each cell contains an anode, cathode, and ceramic zirconium dioxide as the electrolyte. The most important components of the SOFC stack are the interconnector plates between the cells. Besides making the electrical connection, they also ...

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