Mechanical Properties and CMAS Corrosion Resistance of La2Ce2O7/YSZ Composite Thermal Barrier Coatings

被引：0
|
作者：
Kang, Y. X. [1 ]
Bai, Y. [1 ]
Bao, C. G. [1 ]
Fan, W. [1 ]
Zhang, L. [1 ]
机构：
[1] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China
来源：
INTERNATIONAL THERMAL SPRAY CONFERENCE AND EXPOSITION (ITSC 2018) | 2018年
基金：
中国国家自然科学基金;
关键词：
LANTHANUM-CERIUM OXIDE; TEMPERATURE; STRESSES;
D O I：
暂无
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
50 vol. % La2Ce2O7 (LC)/yttria partially stabilized zirconia (YSZ) composite thermal barrier coating (TBC) was deposited by supersonic atmospheric plasma spraying (SAPS). The mixture of LC and YSZ can effectively eliminate the sudden decrease of thermal expansions coefficients of LC. The results of CMAS corrosion tests indicated that the LC/YSZ composite coating reveals high resistance to the penetration of CMAS with reprecipitation of La-Ce apatite, CaAl2Si2O8, MgAl2O4 and t-ZrO2. Furthermore, compared to YSZ coating, the LC/YSZ composite coating can obviously improve the thermal cycling lives under CMAS corrosion.
引用
收藏
页码：75 / 78
页数：4
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