J. Phys. IV France
Volume 112, October 2003
Page(s) 1103 - 1106

J. Phys. IV France
112 (2003) 1103
DOI: 10.1051/jp4:20031075

Low temperature martensitic transformation of zirconia with low contents of yttria

M. Hayakawa, J.-H. Pee and Y. Fujiwara

Department of Mechanical Engineering, Tottori University, Koyama, Tottori 680-8552, Japan

Small spherical specimens of the tetragonal phase were obtained for ZrO $_2-1.40\sim 1.60$mol% Y 2O 3. These specimens transformed into the stable monoclinic phase, either isothermally or athermally depending on being heated or subzero cooled, respectively. In this paper, the characteristic of the latter transformation was studied. The results include the dependence of Mb temperature on the composition, grain size. and specimen size. Other characteristics of the martensitic transformation were also presented.

© EDP Sciences 2003