High temperature oxidation and insulation behavior of plasma-sprayed nanostructured thermal barrier coatings

被引：55

作者：

Zhou, Feifei ^{[1
]}

Wang, You ^{[1
]}

Wang, Liang ^{[1
,2
]}

Cui, Zhongyuan ^{[1
]}

Zhang, Zhenguo ^{[1
]}

机构：

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

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

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 704卷

基金：

中国国家自然科学基金;

关键词：

Nanostructured TBCs; APS; High temperature oxidation; Thermal insulation; BOND COAT; CONDUCTIVITY; SYSTEMS; MICROSTRUCTURE; SIMULATION; CERAMICS; ENGINE;

D O I：

10.1016/j.jallcom.2017.02.073

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Thermal barrier coatings (TBCs) for more efficient gas turbine engines require higher operating temperature. Adopting pyrochlore structure materials such as rare-earth zirconate and double-ceramic-layer (DCL) structure can well satisfy service demands of TBCs at elevated temperature. The nanostructured single-ceramic-layer (SCL) 8YSZ, DCL Sm2Zr2O7 (SZ)/8YSZ and doping 8 wt% CeO2 nanoparticles in SZ (8CSZ)/8YSZ TBCs were prepared by atmospheric plasma spraying (APS) in this work. The high temperature oxidation behavior and thermal insulation property of the three kinds of as-sprayed TBCs were investigated systematically at 1000 degrees C and 1200 degrees C. The results indicate that the nanostructured DCL 8CSZ/SYSZ TBCs have the best oxidation resistance and thermal insulation property at different temperatures among others. The influence of microstructure on thermal insulation property of the coating has been discussed in detail. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：614 / 623

页数：10

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