Crystallography of the tetragonal-to-monoclinic phase transformation in ceria-zirconia

Abstract

A detailed understanding of the transformation toughening process in zirconia-containing ceramics requires the application of the crystallographic theory of martensitic transformation. Therefore, the crystallographic analysis of the tetragonal-to-monoclinic transformation in ceria-zirconia was performed by using both the infinitesimal deformation approach and Wechsler–Lieberman–Read phenomenological crystallographic theory. All crystallographic parameters such as the habit plane orientation, orientation relationship between the parent and product phases, the direction of the total shape deformation, the amount of the lattice invariant strain, etc. were calculated. The results obtained from the infinitesimal deformation approach were in agreement with those calculated from phenomenological crystallographic theory and also with experimental observations.

Keywords:

• Martensitic transformation
• Crystallographic theory
• Zirconia-based ceramics
• PACS numbers: 81.30 Kf
• 61.50 Ks

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Notes on contributors

N. Navruz *

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