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Development and characterization of coatings on interconnector (Cr-ODS) used in SOFCs

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Title Development and characterization of coatings on interconnector (Cr-ODS) used in SOFCs
 
Creator PRASANNA, KMN
KHANNA, AS
QUADAKKERS, WJ
 
Description Oxidation behavior of aluminide coated Cr-ODS alloy having different coating thicknesses was investigated at temperatures ranging from 800-950 degrees C in air. Coating degradation due to rapid Al diffusion into the matrix resulting in Kirkendall porosity was characteristic of all coated alloys. The microhardness of the alloy was substantially increased due to Al diffusion. Pre-oxidation was found to be an effective means of reducing rapid growth of Al coating into the substrate. The aluminide coating modified with Co+Ni showed less tendency towards void formation at the sites where the coating was adhered. Silicide coating did not show any enhancement in the microhardness of the alloy or Kirkendall porosity as a result of Si diffusion. From this study, it has been found that an effective silicide coating for Cr-ODS alloy can be produced by selecting suitable coating parameters.
 
Publisher ELSEVIER SCIENCE BV
 
Date 2011-10-27T09:52:53Z
2011-12-15T09:12:33Z
2011-10-27T09:52:53Z
2011-12-15T09:12:33Z
1998
 
Type Proceedings Paper
 
Identifier CORROSION AND ITS CONTROLS, VOLS I AND II,990-996
0-444-82916-4
http://dspace.library.iitb.ac.in/xmlui/handle/10054/16256
http://hdl.handle.net/100/2737
 
Source International Conference on Corrosion (CORCON 97),MUMBAI, INDIA,DEC 03-06, 1997
 
Language English