Das Sharma, Abhijit and Mukhopadhyay, Jayanta and Basu, Rajendra Nath (2011) Synthesis and Characterization of Nanocrystalline MnCo2O4-delta Spinel for Protective Coating Application in SOFC. ECS Transactions, 35 (3,p3). pp. 2509-2517. ISSN 1938-5862

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Nanocrystalline (40-50 nm) powders of MnCo2O4-delta spinel have been synthesized through combustion technique at a relatively low temperature. The fuel to oxidant ratio has been optimized by carrying out the combustion reaction under various redox conditions (i.e. varying fuel : nitrate ratio) using different fuels viz., citric acid and glycine. A controlled combustion of the complex gel is achieved under a fuel lean condition using a mixed fuel of glycine and citric acid. Phase pure materials are obtained upon calcination of the ash at a temperature as low as 650degC and the powder can be consolidated to more than 95% of theoretical density at a temperature of only 1100degC. The bulk samples show a linear thermal expansion behaviour (CTE: 13.1 x 10-6 K-1) and a high electrical conductivity (>100 S/cm at 800degC). Crofer22APU interconnect plates are deposited with the synthesized powder using electrophoretic deposition (EPD) technique for protective coating application.

Item Type: Article
Subjects: Electronics
Depositing User: Bidhan Chaudhuri
Date Deposited: 07 Feb 2012 06:34
Last Modified: 17 Jun 2016 06:19
URI: http://cgcri.csircentral.net/id/eprint/666

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