Preparation and investigation of MoSi2/SiC coating with high infrared emissivity at high temperature

被引：41
|
作者：
Mao, Jiawei [1 ,2 ]
Ding, Siyu [1 ,2 ]
Li, Yongjia [1 ,2 ]
Li, Shuhao [1 ,2 ]
Liu, Fusheng [1 ,2 ]
Zeng, Xian [1 ]
Cheng, Xudong [1 ,2 ]
机构：
[1] Wuhan Univ Technol, Sch Mat Sci & Engn, Wuhan 430070, Hubei, Peoples R China
[2] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Hubei, Peoples R China
来源：
SURFACE & COATINGS TECHNOLOGY | 2019年 / 358卷
关键词：
MoSi2; SiC; APS; Infrared emission; Thermal shock; OXIDATION BEHAVIOR; COMPOSITES; RESISTANCE; PROPERTY;
D O I：
10.1016/j.surfcoat.2018.12.036
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In this study, MoSi2/SiC coating with high infrared emissivity was fabricated by atmospheric plasma spray (APS) method, in view of the potential application in high temperature energy-saving area. The phase composition, microstructure, infrared emissivity and thermal shock resistance of the obtained coating were characterized. Compared with MoSi2 coating, the MoSi2/SiC coating exhibited a higher emissivity of 0.908 at 1400 degrees C, owing to the smaller band gap energy and the distortion of Mo4.8Si3C0.6. Moreover, high thermal shock resistance was validated, as no emissivity degradation or obvious spalling of coating was found and only a few microcracks could be observed in the surface after 50 thermal cycles with water-quenching from 1300 degrees C to 25 degrees C.
引用
收藏
页码：873 / 878
页数：6
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