Pratihar, Swadesh Kumar and Das Sharma, Abhijit and Maiti, Himadri Sekhar (2006) Electrical behavior of nickel coated YSZ cermet prepared by electroless coating technique. Materials Chemistry and Physics, 96 (2-3). pp. 388-395. ISSN 0254-0584

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Abstract

Nickel–yttria stabilized zirconia (Ni/YSZ) cermet has been prepared by coating YSZ particles with metallic nickel using electroless coating technique. Concentration of nickel was varied between 7.23 and 64.99 wt%. Bulk samples were prepared using these nickel coated YSZ powders by uniaxial pressing followed by sintering in the temperature range 1200–1350 ◦C with a soaking time of 2–6 h. A thorough investigation on the electrical characteristics of the samples has been performed and an attempt has been made to study the effect of starting YSZ particle size, matrix density on the temperature dependence of conductivity of the cermet. Samples prepared by this technique shows metallic conductivity at a Ni concentration as low as 27.04 wt%. A detailed microstructural investigation of the samples is also reported.

Item Type:	Article
Uncontrolled Keywords:	Ni/YSZ cermets; Solid oxide fuel cells; Electrical conductivity; Microstructure
Subjects:	Ceramic-Metal Systems
Divisions:	Fuel Cell and Battery
Depositing User:	Bidhan Chaudhuri
Date Deposited:	05 Mar 2012 08:32
Last Modified:	05 Mar 2012 08:32
URI:	http://cgcri.csircentral.net/id/eprint/1160

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