The Effect of Annealing under Non-vacuum on the Optical Properties of TiAlN Non-vacuum Solar Selective Absorbing Coating Prepared by Cathodic Arc Evaporation

被引：0
|
作者：
宫殿清 [1 ]
程旭东 [1 ]
YE Weiping [2 ]
ZHANG Pu [1 ]
LUO Gan [2 ]
机构：
[1] State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology
[2] School of Materials Science and Engineering, Wuhan University of Technology
来源：
Journal of Wuhan University of Technology(Materials Science) | 2013年 / 02期
关键词：
annealing; optical properties; cathodic arc evaporation; solar selective absorbing coating;
D O I：
暂无
中图分类号：
TB302 [工程材料试验];
学科分类号：
0805 ; 080502 ;
摘要：
TiAlN solar selective absorbing coatings which were deposited on 304L stainless steel using cathodic arc evaporation method were annealed under non-vacuum at different temperatures with different times. The optical properties (absorptance and emittance) of the coatings were measured by a spectrophotometer. It was found that, after being annealed for 2 hours at different temperatures, the absorptance of the coatings reached the highest value of 0.92 at 700 ℃ while the emittance got the lowest value of 0.38 at 800 ℃. When the coatings were annealed at 600 ℃ for 24 hours, the optical properties changed to 0.92/0.44 (absorptance/emittance). By measuring the structure, morphology, elements and surface roughness of the coatings, it was found that both the elemental composition and the surface roughness of the coatings changed as a result of annealing, and these changes caused the change of the optical properties of the coatings.
引用
收藏
页码：256 / 260
页数：5
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