PREPARATION, SINTERING, MICROSTRUCTURE, AND THERMAL-STABILITY OF Y2O3-DOPED AND CEO2-DOPED TETRAGONAL ZIRCONIA CERAMICS

被引：19

作者：

HIRANO, M

INADA, H

机构：

[1] Noritake Co., Limited, Nishi-ku, Nagoya-shi, Noritake

来源：

CERAMICS INTERNATIONAL | 1991年 / 17卷 / 06期

关键词：

D O I：

10.1016/0272-8842(91)90034-W

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Yttria- and ceria-doped tetragonal zirconia polycrystals ((Y, Ce)-TZP) with compositions 2.5 mol% YO1.5-4 mol% CeO2-ZrO2, 4 mol% YO1.5-4 mol% CeO2-ZrO2, and 2.5 mol% YO1.5-5.5 mol% CeO2-ZrO2 were prepared from zirconia sols obtained by hydrolysis of ZrOCl2 solution, and their sintering, microstructure and thermal stability were studied. Sintered bodies with 99% TD were obtained by firing at 1400-degrees-C for 2 h in air. The grain size of (Y, Ce)-TZP increased with decreasing Y2O3 content in Y2O3-CeO2-ZrO2. (Y, Ce)-TZP was resistant to tetragonal-to-monoclinic (t --> m) phase transformation during low temperature ageing as compared with 3Y-TZP.

引用

页码：359 / 365

页数：7

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