A promising non-transformable tetragonal YSZ nanostructured feedstocks for plasma spraying-physical vapor deposition

被引：12

作者：

Zhou, Feifei ^{[1
]}

Wang, You ^{[1
]}

Wang, Yaming ^{[1
]}

Wang, Liang ^{[2
]}

Gou, Junfeng ^{[1
]}

Chen, Wenlong ^{[3
]}

机构：

[1] Harbin Inst Technol, Sch Mat Sci & Engn, Dept Mat Sci, Harbin 150001, Heilongjiang, Peoples R China

[2] Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Inorgan Coating Mat CAS, Shanghai 201899, Peoples R China

[3] Guangdong Univ Technol, Sch Mat & Energy, Guangzhou 510006, Guangdong, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2018年 / 44卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Nanostructure; YSZ; Tetragonal prime; PS-PVD; Powder reconstitution; THERMAL BARRIER COATINGS; STABILIZED ZIRCONIA; PS-PVD; OXIDATION; BEHAVIOR;

D O I：

10.1016/j.ceramint.2017.10.012

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 8 wt% yttria stabilized zirconia (n-8YSZ) feedstocks used for plasma spraying-physical vapor deposition (PS-PVD) were successfully prepared by the powder reconstitution method for the first time in this study. The n-8YSZ feedstocks were characterized by TEM, SEM and XRD. The results reveal that the grain size of n-8YSZ feedstocks is below 20 nm and the particle size of spherical or equiaxed agglomerates is below 23 mu m. The n-8YSZ feedstocks are composed of only tetragonal prime (t') phase. The t' phase of feedstocks would bring excellent thermal shock resistance in the coatings. Hence, the n-8YSZ feedstocks will have a broader application prospect than the commercial M6700 powders whose main phase composition is monoclinic zirconia used for PS-PVD.

引用

页码：1201 / 1204

页数：4

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