工艺参数对铝合金AAO膜光学特性参数的影响研究  

Synthesis and Property Characterization of Novel Thermal Control Coatings of Anodically Oxidized Al-Alloy for Space-crafts

作　　者：倪磊 陈东初[2] 王梅丰[3] 常萌蕾[2] 叶秀芳[2] 魏红阳[2,3] Ni Lei;Chen Dongchu;Wang Meifeng;Chang Menglei;Ye Xiufang;Wei Hongyang(AVIC China Aviation Changsha Design and Research CO.,LTD,Changsha 410014,China;Foshan University,Foshan 528137,China;Nanchang Hangkong University,Nanchang 330063,China)

机构地区：[1]中航长沙设计研究院有限公司,长沙410014 [2]佛山科学技术学院,佛山528137 [3]南昌航空大学,南昌330063

出　　处：《真空科学与技术学报》2018年第12期1058-1064,共7页Chinese Journal of Vacuum Science and Technology

基　　金：佛山市工程技术研究中心资助项目(2014GA000355);佛山市科技创新专项资金项目(2014AG10009);广东省创新强校工程项目(2016GCZX008)

摘　　要：研究了6063铝合金阳极氧化工艺的电流密度、槽液温度、氧化时间、氧化膜表面粗糙度以及表面形貌对太阳吸收率(α_s)和半球发生率(ε_H)的影响,确定制备低比值α_s/ε_H热控涂层的阳极氧化工艺。研究表明6063铝合金制备低比值的α_s/ε_H热控涂层的阳极氧化工艺:电流密度1. 0 A/dm^2,电解液温度18℃,氧化时间30 min,氧化膜表面的粗糙度为0. 58,此种工艺制备出的氧化膜的α_s/ε_H比值最小为0. 164,同时研究发现氧化膜封孔的质量对αs/εH具有重要影响。Herein,we reported the synthesis andproperty characterization of the novel thermal control coatings of anodically oxidized Al-alloy( AAO) 6063 for space-crafts. The impact of the oxidation conditions,including but not limited to the current density,bath temperature and oxidation time,on the microstructures and optical properties of porous AAO coatings were investigated with scanning electron microscopy and conventional optical probes. The preliminary results show that the newly-developed AAO thermal control coating was a good space-craft material. For example,oxidized for 30 min at a current density of 1. 0 A/dm^2 and a temperature of 18℃,the lowest raio of solar absorptance and hemispherical emittance,α_s/ε_H,of the AAO coatings with a surface roughness of 0. 58 was measured to be 0. 164. Moreover,the film sealing the porous AAO coatingsand surface roughness were found to significantly affect the αs/εHratio.

关 键 词：铝合金 阳极氧化 热控涂层 太阳吸收率 半球发射率 

分 类 号：V45[一般工业技术—材料科学与工程]