The Role of a Threshold Stress on the Superplasticity of Ceramics Revisited

Abstract:

This paper is a brief review of the concept of superplasticity, which has been extensively used to explain the superplastic behavior of yttria-tetragonal zirconia polycrystals. The diverse theories develop to account for the origin of this quantity are outlined. In addition to that, a modern approach to this concept is reported. This new contribution can give rise to a revision of the until-now established concept of invariant microstructure associated to superplasticity.

• Periodical: Materials Science Forum (Volumes 838-839)
• Pages: 95-99
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.838-839.95
• Online since: January 2016
• Authors: Cesar Retamal, Miguel Lagos, Bibi Malmal Moshtaghioun, Diego Gómez-García*
• Keywords: Modelling, Superplasticity, Threshold Stress, Yttria-Tetragonal Zirconia

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