Preparation, Characterization, and Thermophysical Properties of (La0.95Sr0.05)2Ce2O6.95 Ceramic for Thermal Barrier Coatings

被引：13
|
作者：
Zhang, Hong-Song [1 ]
Lv, Jian-Guo [2 ]
Li, Gang [2 ]
Chen, Xiao-Ge [3 ]
Wang, Xin-Li [4 ]
机构：
[1] Henan Inst Engn, Dept Mech Engn, Zhengzhou 450007, Peoples R China
[2] Kunming Univ Sci & Technol, Coll City, Kunming 650500, Peoples R China
[3] Henan Inst Engn, Dept Construct Engn, Zhengzhou 450007, Peoples R China
[4] Henan Inst Engn, Dept Mech Engn, Zhengzhou 450007, Peoples R China
来源：
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY | 2014年 / 11卷 / 02期
关键词：
OXIDE; CONDUCTIVITY; MICROSTRUCTURE; EXPANSION;
D O I：
10.1111/ijac.12015
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 La2Ce2O7 powder doped with Sr was synthesized by sol-gel method in this study and its dense bulk samples were also prepared by pressureless-sintered at 1600 degrees C for 10h. Its phase composition, microstructure, and thermophysical property were investigated. Results reveal that pure (La0.95Sr0.05)(2)Ce2O6.95 with single fluorite structure was successfully synthesized. Microstructure of bulk sample is dense. Its thermal expansion coefficient is higher than that of Y2O3-stabilized ZrO2 (YSZ) and its thermal conductivity is lower than that of YSZ. These results show that (La0.95Sr0.05)(2)Ce2O6.95 ceramic can be explored as the candidate material for thermal barrier coatings.
引用
收藏
页码：350 / 358
页数：9
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