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A simple method for the preparation of plasma-sprayable powders based on ZrO2

Ramaswamy, Parvati and Seetharamu, S and Varma, KBR and Rao, KJ (1996) A simple method for the preparation of plasma-sprayable powders based on ZrO2. In: Journal of Materials Science (full set), 31 (23). pp. 6325-6332.

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Abstract

Plasma-sprayable powders of calcia, magnesia and yttria-stabilized zirconia have been prepared by using polyvinyl alcohol binders. The powders have been characterized for sprayability by spray coating on steer plates previously coated with an NiAl bond coat. The suitability of these coatings for thermal barrier applications have been examined. Thermal barrier and related properties, along with phase stability and mechanical properties, have been found to be good. Failure of the thermal barrier coating has been observed to occur at the interface between the bond coat and the substrate, due to the formation of a pile-up layer consisting of Fe-Zr-Al-O compound.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Springer.
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Date Deposited: 21 Apr 2011 08:21
Last Modified: 21 Apr 2011 08:21
URI: http://eprints.iisc.ernet.in/id/eprint/37037

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