The Mechanism of High Thermal Shock Resistance of Nanostructured Ceramic Coatings

被引：4

作者：

Liang, Lihong ^{[1
]}

Li, Xiaona ^{[1
]}

Wei, Yueguang ^{[1
]}

Wei, Hua ^{[2
]}

机构：

[1] Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China

[2] Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China

来源：

INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY | 2015年 / 12卷 / 05期

关键词：

BARRIER COATINGS; ZIRCONIA COATINGS; ELASTIC-MODULUS; SYSTEMS; NANOINDENTATION; MICROSTRUCTURE; CONDUCTIVITY; TEMPERATURE; STRESS; ENERGY;

D O I：

10.1111/ijac.12336

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：

The nanostructured and the conventional ZrO2 coating samples were thermal shocked at a series of temperatures. The elastic modulus and the hardness of two kinds of coatings were investigated by the nanoindentation tests. The results show that the corresponding mechanical properties of the conventional coatings increase monotonically with increasing temperature difference of the thermal shock. While the modulus and the hardness of the nanostructured coatings fluctuate slightly with increasing thermal shock temperature difference. Furthermore, the interface energy release model of the thermal shock strain energy was proposed for the nanostructured coatings. The theoretical prediction agrees with the experimental result.

引用

页码：1096 / 1102

页数：7

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