Thermal and mechanical properties of Yb&Mg co-doped InFeZnO4

被引：7

作者：

Zhao, Bolun ^{[1
]}

Pei, Yanling ^{[1
]}

Zhang, Lihua ^{[1
]}

Gong, Shengkai ^{[1
]}

Zhao, Li-Dong ^{[1
]}

机构：

[1] Beihang Univ, Sch Mat Sci & Engn, Beijing 100191, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2016年 / 684卷

基金：

中国国家自然科学基金;

关键词：

Thermal barrier coatings (TBCs); InFeZnO4; Thermal conductivity; Mechanical properties; THERMOPHYSICAL PROPERTIES; BARRIER COATINGS; CONDUCTIVITY;

D O I：

10.1016/j.jallcom.2016.05.064

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：

In0.4Yb0.6FeZnO4 was confirmed to possess the lowest thermal conductivity in Yb-doped InFeZnO4. To further reduce the thermal conductivity, In0.4Yb0.6FeZn1-xMgxO4 (x = 0, 0.1, 0.2, ..., 0.8, 0.9, 1.0) ceramics were synthesized by solid state reaction at 1300 degrees C for 30 h. XRD results indicated that single phase In0.4Yb0.6FeZn1-xMgxO4 ceramics were successfully synthesized with layered YbFe2O4-type crystal structure in the hexagonal R (3) over barm space group. It was found that the thermal conductivity of In0.4Yb0.6FeZn0.5Mg0.5O4 (x = 0.5) reached a minimum value of 1.13 W m(-1) K-1 at 1000 degrees C. The investigations on the thermal stability, thermal expansion coefficient, abradable property and erosion wear resistance indicate that In0.4Yb0.6FeZn0.5Mg0.5O4 ceramics are promising thermal barrier coatings. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：34 / 39

页数：6

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