Effect of spraying power on the morphology of YSZ splat and micro-structure of thermal barrier coating

被引：26

作者：

Wang, Yuyan ^{[1
,2
]}

Han, Yuexing ^{[3
,4
]}

Lin, Chucheng ^{[2
]}

Zheng, Wei ^{[2
]}

Jiang, Caifen ^{[2
]}

Wei, Aijia ^{[3
]}

Liu, Yuhong ^{[3
]}

Zeng, Yi ^{[2
]}

Shi, Ying ^{[1
]}

机构：

[1] Shanghai Univ, Sch Mat Sci & Engn, 99 Shangda Rd, Shanghai 200444, Peoples R China

[2] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China

[3] Shanghai Univ, Sch Comp Engn & Sci, Shanghai 200444, Peoples R China

[4] Shanghai Univ, Shanghai Inst Adv Commun & Data Sci, Shanghai 200444, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2021年 / 47卷 / 13期

基金：

上海市自然科学基金;

关键词：

Thermal spray; Splat; YSZ coating; Micro-structure; YTTRIA-STABILIZED ZIRCONIA; SUBSTRATE-TEMPERATURE; PLASMA; DROPLET; MOLTEN; SOLIDIFICATION; MECHANISMS; PORES;

D O I：

10.1016/j.ceramint.2021.03.238

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：

Yttria partially stabilized zirconia splats and their macroscopic thermal barrier coatings were prepared by atmospheric plasma spraying. And image analysis and scanning electron microscopy were adopted, together with splat as a link, to study why different pores and cracks are formed during the spraying process. It was determined that the spraying power altered the morphology of the splats, thereby affecting the macroscopic coating obtained by subsequent deposition. In the case where the power is too small, horizontal cracks and pores are more likely to occur, and when the power is too high, vertical cracks are likely to occur.

引用

页码：18956 / 18963

页数：8