The effect of chromia scale thickness on ASR of solid oxide fuel cell interconnects at presence of Mn3O4 and MnFe2O4 spinels

Ebrahimifar, Hadi and Zandrahimi, Morteza (2010) The effect of chromia scale thickness on ASR of solid oxide fuel cell interconnects at presence of Mn3O4 and MnFe2O4 spinels. Journal of Metallurgy and Materials Science, 52 (1). pp. 103-107.

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Abstract

Unwanted reactions between metallic interconnect and other SOFC components decrease the efficiency of these energy convertors. One approach to improve interconnect properties is to apply surface coating. In this study AISI 430 ferritic stainless steel was coated in a cobalt-base pack mixture by pack cementation. The formation of Mn3O4 and MnFe2O4 spinels during oxidation at 700ºC improve oxidation resistance and electrical conductivity. The effect of oxide thickness on the area specific resistance (ASR) was investigated by applying isothermal oxidation. Results showed that the increase of isothermal oxidation time, increases the oxide thickness and this increase the ASR.

Item Type:Article
Official URL/DOI:http://www.indianjournals.com
Uncontrolled Keywords:Solid oxide fuel cell, AISI 430 ferritic stainless steel, oxide thickness, area specific resistance.
Divisions:Material Science and Technology
ID Code:2542
Deposited By:Dr. A K Sahu
Deposited On:10 Mar 2011 10:24
Last Modified:18 Oct 2011 14:16
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