Thermal shock resistance of dense zirconia matrix composites evaluated by indentation techniques

被引：10

作者：

Li, Zhongqiu ^{[1
]}

Liu, Jiachen ^{[1
]}

Du, Haiyan ^{[1
]}

Li, Shun ^{[1
]}

Zhang, Pengyu ^{[1
]}

机构：

[1] Tianjin Univ, Minist Educ, Key Lab Adv Ceram & Machining Technol, Tianjin 300072, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2009年 / 517卷 / 1-2期

基金：

中国国家自然科学基金; 国家高技术研究发展计划(863计划);

关键词：

3Y-TZP; Lanthanum phosphate; Indentation-quench; Thermal shock resistance; MICROSTRUCTURE; CERAMICS; MONAZITE;

D O I：

10.1016/j.msea.2009.04.016

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The thermal shock behavior of 3Y-T-ZP/LaPO4 composites containing 0, 15, 30vol.% LaPO4 was evaluated with an indentation-quench method based on propagation of Vickers cracks. The effect of LaPO4 particle size on the thermal shock behavior of 3Y-TZP/LaPO4 composites was investigated preliminarily Results showed that the composite containing 15 vol.% 900 degrees C sintered LaPO4 exhibited better resistance to crack propagation and thermal shock under water quenching condition. Larger grain size or higher content of LaPO4 would deteriorate the thermal shock resistance of 3Y-TZP/LaPO4 composites. The calculation of thermal shock resistance parameter R-st for the composites gives a possible explanation for the difference in thermal shock behavior. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：154 / 159

页数：6

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