Thermal conductivity and thermal cycle life of La2O3 and HfO2 doped ZrO2-Y2O3 coatings produced by EB-PVD

被引：38

作者：

Matsumoto, Mineaki ^{[1
]}

Kato, Takeharu ^{[1
]}

Yamaguchi, Norio ^{[1
]}

Yokoe, Daisaku ^{[1
]}

Matsubara, Hideaki ^{[1
]}

机构：

[1] Japan Fine Ceram Ctr, Mat Res & Dev Lab, Atsuta Ku, Nagoya, Aichi 4568587, Japan

来源：

SURFACE & COATINGS TECHNOLOGY | 2009年 / 203卷 / 19期

关键词：

Thermal barrier coatings; Thermal conductivity; Precipitates; Sintering; La2O3; HfO2; EB-PVD; PHASE-STABILITY; MICROSTRUCTURE; ZRO2;

D O I：

10.1016/j.surfcoat.2009.01.033

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The effects of La2O3 and HfO2 addition on thermal conductivity and thermal cycle life of EB-PVD YSZ coatings were investigated. La2O3 and HfO2 were selected as additives, because they significantly suppress the sintering of YSZ. The developed coating showed low thermal conductivity as well as high resistance to sintering. Burner rig tests confirmed that the developed coating have a superior thermal insulating effect and have a longer life than that of a coating with conventional composition. (c) 2009 Elsevier B.V. All rights reserved.

引用

页码：2835 / 2840

页数：6

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