Superplastic Gas‐Pressure Deformiation of YTZ Sheet

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)1665-1672
Journal / PublicationJournal of the American Ceramic Society
Volume76
Issue number7
Publication statusPublished - Jul 1993
Externally publishedYes

Abstract

The superplastic deformation behavior of fine‐grained, yttria‐stabilized tetragonal zirconia under conditions of biaxial gas‐pressure deformation is described. Sheet specimens were deformed into hemispherical caps at temperatures ranging from 1450° to 1600°C and at imposed gas pressures ranging from 345 to 2760 kPa. For the forming conditions examined, hemispherical caps were formed at times ranging from 2 to 476 min. A gas‐pressure‐forming apparatus used to conduct the experiments is described and a mechanical analysis of the deformation process is presented. Also discussed is the role of grain growth and the relationship between data obtained in uniaxial testing and the behavior observed during the biaxial deformation experiments of this study. A comparison is made between the observed thickness distribution in the hemispherical caps with predictions from an analytical model. Copyright © 1993, Wiley Blackwell. All rights reserved

Bibliographic Note

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Citation Format(s)

Superplastic Gas‐Pressure Deformiation of YTZ Sheet. / Wittenauer, Jerry; Nieh, Tai Gang; Wadsworth, Jeffrey.

In: Journal of the American Ceramic Society, Vol. 76, No. 7, 07.1993, p. 1665-1672.

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