Segmented thermal barrier coatings produced by atmospheric plasma spraying hollow powders

被引：37

作者：

Guo, HB

Kuroda, S

Murakami, H

机构：

[1] Natl Inst Mat Sci, Mat Engn Lab, Thermal Spray Grp, Tsukuba, Ibaraki 3050047, Japan

[2] Univ Tokyo, Sch Engn, Dept Mat Engn, Bunkyo Ku, Tokyo 1138656, Japan

来源：

THIN SOLID FILMS | 2006年 / 506卷

关键词：

plasma spraying; thermal barrier coatings; segmentation cracks;

D O I：

10.1016/j.tsf.2005.08.142

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Segmented thermal barrier coatings were produced by plasma spraying hollow and solid ZrO2-8 Wt.% Y2O3 powders. The solid powder (SP) had greater capability of producing segmentation cracks in coating compared with the hollow powder (HP). High substrate temperature (T-S) gave rise to an increased segmentation crack density (DJ. The segmentation crack network was still stable even after sintering at 1300 degrees C for 15 h. The microcracks that are mainly attributed to delaminations between splats had a negative effect on the origin and propagation of segmentation cracks. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：136 / 139

页数：4

共 11 条

[1] CHARACTERIZATION OF MICROSTRUCTURAL DEFECTS IN PLASMA-SPRAYED THERMAL BARRIER COATINGS [J].