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Optimization of Alloy-Coating Compositions for Use as Solid Oxide Fuel Cell Interconnects

Published online by Cambridge University Press:  21 February 2012

Jeffrey W. Fergus ,
Yu Zhao  and
Yingjia Liu
Jeffrey W. Fergus
Affiliation:
Auburn University, Materials Research and Education Center, 275 Wilmore Laboratories, Auburn, AL 36849, U.S.A.
Yu Zhao
Affiliation:
Auburn University, Materials Research and Education Center, 275 Wilmore Laboratories, Auburn, AL 36849, U.S.A.
Yingjia Liu
Affiliation:
Auburn University, Materials Research and Education Center, 275 Wilmore Laboratories, Auburn, AL 36849, U.S.A.
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Abstract

Reduction in the operating temperature of solid oxide fuel cells (SOFCs) allows for the use of ferritic stainless steels as the interconnect material. However, cathode poisoning due to volatilization of chromium from the oxide scale formed on these alloys requires the use of a ceramic coating on the alloy. The reaction layer formed between the coating and the alloy affects the performance of the fuel cell, so the composition and properties of this layer must be considered in selecting the alloy and coating compositions. In this paper, the factors relevant to selection of the alloy/coating materials and the effect of the alloy-coating interaction on these factors are discussed.

Keywords

ceramiccoatingdiffusion
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1384: Symposium B – Advanced Materials for Fuel Cells , 2012 , mrsf11-1384-b13-22
Copyright
Copyright © Materials Research Society 2012

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References

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