Structure of plasma-sprayed zirconia coatings tailored by controlling the temperature and velocity of the sprayed particles

被引：71

作者：

Prystay, M ^{[1
]}

Gougeon, P ^{[1
]}

Moreau, C ^{[1
]}

机构：

[1] Natl Res Council Canada, Inst Ind Mat, Boucherville, PQ J4B 6Y4, Canada

来源：

JOURNAL OF THERMAL SPRAY TECHNOLOGY | 2001年 / 10卷 / 01期

关键词：

angular crack distribution; image analysis; thermal barrier coatings; thermal diffusivity; particle diagnostics; zirconia;

D O I：

10.1361/105996301770349529

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The correlation between particle temperature and velocity with the structure of plasma-sprayed zirconia coatings is studied to determine which parameter most strongly influences the coating structure. The particle temperature and velocity are measured using an integrated optical monitoring system positioned normal to the spraying axis. The total porosity, angular crack distribution, and thermal diffusivity are correlated with the particle temperature and velocity. Results show that the temperature of the sprayed particles has a larger effect on the coating properties than the velocity in the conditions investigated.

引用

页码：67 / 75

页数：9

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