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Evolution of crystalline zirconia structure in heat-treated ceria stabilized zirconia gels

Nagarajan, VS and Rao, KJ (1991) Evolution of crystalline zirconia structure in heat-treated ceria stabilized zirconia gels. In: Journal of Materials Research, 6 (12). pp. 2688-2693.

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Abstract

Transformation characteristics of $CeO_2$ stabilized $ZrO_2$ gels have been studied during heating in the temperature region 1273-1473 K. The nature of the major phase present changes drastically in this temperature region. The crystallite sizes of tetragonal and monoclinic $ZrO_2$ crystallites have been calculated by x-ray line broadening. The change in the nature of the major phase observed during heat treatment seems to be related to the presence of a barrier for transformation from a metastable to a stable regime, which in turn appears to be related to the diffusion barriers of $Ce^4^+$ in $ZrO_2$.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to the Materials Research Society.
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Division of Mechanical Sciences > Chemical Engineering
Date Deposited: 13 Jul 2007
Last Modified: 19 Sep 2010 04:37
URI: http://eprints.iisc.ernet.in/id/eprint/10821

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