Greatly enhanced solar absorption via high entropy ceramic AlCrTaTiZrN based solar selective absorber coatings

作者: Cheng-Yu He , Xiao-Li Qiu , Dong-Mei Yu , Shuai-Sheng Zhao , Hui-Xia Guo

DOI: 10.1016/J.JMAT.2020.11.010

关键词:

摘要: Abstract High entropy alloys (HEAs), which is at the expense of high cost compared to traditional alloy, should not be confined mechanical properties, but employed devise a novel combination with unique functional and performances. In this work, alloy nitride (HEAN) utilized as double absorption layer improve solar in temperature selective absorbing coatings (SSACs). Our primary motivation lower thermal emittance (e) enhance absorptance (α). order realize goal, coating design (CODE) software optimize proposed HEAN based SSACs using appropriate dielectric function model. The ultimate as-deposited shows good optical properties α value 0.965 low e 0.086 (at 82 °C). estimate stability tests indicates that has ability resist instability working temperature, keeps (α = 0.925, e = 0.070) after annealing 600 °C for 10 h.

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