Thermal stability and sintering behavior of plasma sprayed nanostructured 7YSZ, 15YSZ and 5.5SYSZ coatings at elevated temperatures

被引：32

作者：

Loghman-Estarki, M. R. ^{[1
]}

Razavi, R. Shoja ^{[1
]}

Jamali, H. ^{[1
]}

机构：

[1] Malek Ashtar Univ Technol, Dept Mat Engn, POB 83145-115, Shahin Shahr, Isfahan, Iran

来源：

CERAMICS INTERNATIONAL | 2016年 / 42卷 / 13期

关键词：

Thermal stability; Sintering resistance; Atmospheric plasma spraying; Nanostructured thermal barrier coatings; HOT CORROSION BEHAVIOR; BARRIER COATINGS; PHASE-STABILITY; SHOCK BEHAVIOR; YSZ; MICROSTRUCTURE; SCANDIA; CONDUCTIVITY; SIZE; SC2O3-Y2O3-ZRO2;

D O I：

10.1016/j.ceramint.2016.05.203

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：

Nanostructured scandia, yttria doped zirconia (5.5SYSZ), 7 wt% yttria stabilized zirconia (7YSZ) and 15YSZ thermal barrier coatings (TBCs) were produced by plasma spraying on nickel-based superalloy substrates with NiCrAIY as the bond coat. The thermal stability and sintering behavior of the three as-sprayed TBCs at 1480 degrees C were investigated. The results indicated that the thermal stability of SYSZ and TBCs was longer than the 7YSZ TBCs due to higher amount of tetragonal phase. Furthermore, the results demonstrated that the nanostructured 7YSZ coating exhibits higher sintering resistance than 5.5SYSZ TBC. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：14374 / 14383

页数：10

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