基于计算机模拟制备工业级太阳光谱选择性吸收涂层及其耐候性的研究  

Preparation of industrial-grade solar-selective absorption coating based on computer simulation and study on its weatherability

作　　者：马海林 李佩莹 范多旺[2] 夏荣斌[3] 俞天智 MA Hailin;LI Peiying;FAN Duowang;XIA Rongbin;YU Tianzhi(Key Laboratory of Opto-Technology and Intelligent Control Ministry of Education,Lanzhou Jiaotong University,Lanzhou 730070,China;不详)

机构地区：[1]兰州交通大学光电技术与智能控制教育部重点实验室,甘肃兰州730070 [2]兰州交通大学国家绿色镀膜技术与装备工程技术研究中心,甘肃兰州730070 [3]兰州交通大学常州研究院,江苏常州213034

出　　处：《电镀与涂饰》2020年第22期1533-1539,共7页Electroplating & Finishing

摘　　要：基于等效媒质理论,用计算机软件设计了电介质−金属复合结构材料作为太阳能选择性吸热涂层,并在工业化生产设备上通过中频反应磁控溅射进行制备。探讨了反应气体流量与涂层光学常数的关系。场发射扫描电镜显示该涂层为多层膜结构,紫外−可见分光光度计测试后计算得到的涂层吸收比高达0.93,发射率为0.07,接近理论设计值。在铜加速乙酸盐雾试验15 h后,涂层的吸收比逐渐低于0.90,发射率大于0.12。紫外光照老化试验表明该涂层具备不低于10 d的耐久性能。Based on the effective medium theory,a dielectric-metal composite as solar-selective absorption coating was designed using computer software and prepared using an industrialized medium-frequency reactive magnetron sputtering equipment.The relationship between the reactive gas flow rate and the optical constant of the coating was discussed.The field-emission scanning electron microscopic image showed that the coating had a multilayer structure,and the ultravioletvisible spectrophotometric result showed that the absorptance and the emittance of the coating were as high as 0.93 and 0.07,which were close to its theoretical values.After 15 hours of copper-accelerated acetic acid salt spray test,the absorptance of the coating tended to be lower than 0.90 and its emittance became greater than 0.12.The result of ultraviolet-light-accelerated aging test showed that the coating had a durability of not less than 10 days.

关 键 词：选择性吸收涂层 太阳光谱 磁控溅射 光学常数 等效媒质理论 计算机模拟 耐候性 

分 类 号：TK512[动力工程及工程热物理—热能工程] TB383[一般工业技术—材料科学与工程]