Improvement of thermal stability in the solar selective absorbing Mo-Al2O3 coating

被引：63
|
作者：
Cheng, Jiushan [1 ]
Wang, Cong [1 ]
Wang, Wenwen [1 ]
Du, Xinkang [1 ]
Liu, Yu [1 ]
Xue, Yafei [1 ]
Wang, Tianmin [1 ]
Chen, Buliang [2 ]
机构：
[1] Beihang Univ, Dept Phys, Ctr Condensed Matter & Mat Phys, Beijing 100191, Peoples R China
[2] China Acad Space Technol, Beijing 100029, Peoples R China
来源：
SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2013年 / 109卷
基金：
中国国家自然科学基金;
关键词：
Solar selective absorbing coating; Interfacial diffusion; Dense microstructure; Thermal stability; AES analysis; SURFACES; EFFICIENCY; ENERGY;
D O I：
10.1016/j.solmat.2012.11.010
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Mo-Al2O3 solar selective absorbing coating was deposited on stainless steel substrate by magnetron sputtering. The evaluation of high temperature stability indicates that the degradation of the optical properties is due to the diffusion and oxidation of single metal Mo in the ceramic Al2O3. Mo diffuses easily in Al2O3 layer and the interface between the double Mo Al2O3 layers when aging temperature is above 400 degrees C, which was observed by SEM and AES with etching depth. The thermal stability was improved significantly when a denser Mo-Al2O3 layer was obtained by optimizing the deposition parameters. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：204 / 208
页数：5
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