Residual stresses in alumina/ceria-stabilized zirconia composites

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)2213-2214
Journal / PublicationJournal of the American Ceramic Society
Volume78
Issue number8
Publication statusPublished - Aug 1995
Externally publishedYes

Abstract

Measurements of the residual stresses in Al2O3/Ce-TZP (12 mol% CeO2) sintered composites, containing 10, 20, and 40 vol% zirconia, obtained by neutron diffraction and by piezospectroscopy using optical fluorescence and Raman are compared. The techniques give essentially the same values for the spatial average of the hydrostatic residual stresses in the two phases despite the difference in the parameters measured in the two techniques. The measured stresses are also in accord with those predicted from a stochastic stress analysis for materials cooling from a stress-free temperature of approx.1180°C. Over the range of volume fraction investigated the hydrostatic stress in the alumina phase varies linearly with zirconia content, corresponding most closely to the upper Hashin bound.

Citation Format(s)

Residual stresses in alumina/ceria-stabilized zirconia composites. / Sergo, Valter; Wang, Xun Li; Clarke, David R.; Becher, Paul F.

In: Journal of the American Ceramic Society, Vol. 78, No. 8, 08.1995, p. 2213-2214.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review