The influence of MnCo2O4, CoCr2O4, CoFe2O4 and Co3O4 spinels on the thickness of chromia scale during two types of oxidation tests

Ebrahimifar, Hadi and Zandrahimi, Morteza (2011) The influence of MnCo2O4, CoCr2O4, CoFe2O4 and Co3O4 spinels on the thickness of chromia scale during two types of oxidation tests. Journal of Metallurgy and Materials Science, 53 (2). pp. 205-209.

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Abstract

Most current research has concentrated on solid oxide fuel cells (SOFCs) to resolve the contact resistance and cathode-chromium-poisoning problems associated with application of ferritic stainless steels as interconnects. In this study AISI 430 ferritic stainless Steel was coated in a cobalt-base pack mixture by pack cementation method. Isothermal oxidation and cyclic oxidation were applied to evaluate the oxide layer thickness which was created during these tests. Results showed the formation of MnCo2O4, CoCr2O4, CoFe2O4 and Co3O4 spinels during oxidation improved oxidation resistance. The increase of oxidation time and cycle number enhanced the oxide thickness. Also the coated substrate oxide thickness was remarkably lower compared with uncoated ones in all tests.

Item Type:Article
Official URL/DOI:http://eprints.nmlindia.org/cgi/users/home?screen=...
Uncontrolled Keywords:Solid oxide fuel cell, AISI 430 ferritic stainless steel, Oxidation, Oxide thickness.
Divisions:Material Science and Technology
ID Code:4776
Deposited By:INVALID USER
Deposited On:10 Feb 2012 14:19
Last Modified:25 Apr 2013 17:07
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