Thermal stability of nitride solar selective absorbing coatings used in high temperature parabolic trough current
Thermal stability of nitride solar selective absorbing coatings used in high temperature parabolic trough current作者机构:Department of Energy Material and Technology General Research Institute for Nonferrous Metals Beijing China
出 版 物:《Science China(Technological Sciences)》 (中国科学(技术科学英文版))
年 卷 期:2010年第53卷第6期
页 面:1507-1512页
核心收录:
学科分类:080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程(可授工学、理学学位)]
基 金:supported by the Foundation of Special Scientific Research Institutes (Grant No.05220902)
主 题:solar energy nitride coatings solar absorptance thermal emittance thermal degradation
摘 要:This paper reports a new efficient solar selective surface in high temperature *** influence of the monolayer s microstructure and deposition rate was firstly *** the nitride nano-multilayer on the polished stainless steel (herein after referred as SS) substrate was prepared with Ti and Al metal targets by *** *** *** samples were annealed in air at different temperatures ranging from 350 to 800°C for 2 h to evaluate their thermal *** samples surface and cross-section morphology,crystal structure,phase composition,optical properties were analyzed by scanning electron microscopy,X-ray diffraction,UV-VIS-NIR spectrophotometer and infrared emissivity *** results show that the coatings exhibit high solar selectivity (α/ε) of 0.943/0.08 even after heat-treatment up to 400°C for 2 h in *** heat-treatment at 600°C in air,the solar selectivity decreases to 0.92/0.16.