Stress-induced cubic-tetragonal transformation in partially stabilized ZrO2:: Raman spectroscopy study

被引：40

作者：

Sobol, AA ^{[1
]}

Voronko, YK ^{[1
]}

机构：

[1] Russian Acad Sci, Laser Mat & Technol Res Ctr, Inst Gen Phys, Moscow 119991, Russia

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2004年 / 65卷 / 06期

基金：

俄罗斯基础研究基金会;

关键词：

phase transformations; Raman spectroscopy;

D O I：

10.1016/j.jpcs.2003.11.038

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Regularities of the cubic-tetragonal transformation (C-->t') in partially stabilized zirconia were studied with Raman spectroscopy and high-temperature Raman spectroscopy techniques. New 'low temperature' mechanism of tetragonal nanoparticles formation in a volume of cubic solid solution was revealed in ZrO2-Gd2O3 (Eu2O3) (6-8 mol%) single crystals. This mechanism includes nucleation of the tetragonal nanoparticles due to diffusionless C --> t' phase transformation at the first stage and gradual decrease of the stabilizer concentration inside t'-domains after subsequent low-temperature annealing. Predominant orientation of tetragonal domains due to the stress-induced C transformation was registered in ZrO2-Gd2O3 (8 mol%) single crystals. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：1103 / 1112

页数：10