摘要
利用离子镀钛膜后在60 kV+50 kV+40 kV+30 kV+20 kV+10 kV六级氮离子注入的复合方法在铝表面制备出了渐变型太阳光选择性吸收膜层;对制备的膜进行了反射率测量,并由此计算了太阳光谱吸收率;同时测量了膜的热发射率;用扫描电镜观察了膜表面形貌,用XPS光电子能谱仪对膜层进行了表层分析,并用俄歇能谱仪分析了元素纵向分布。结果表明:氮离子六级注入后膜的太阳光吸收率高达99.66%,其热发射率为0.31,膜层中钛、氮和铝的相互扩散造成膜的热发射率偏大,而膜层表面生成的TiO2、TiN和碳单质等有利于减少热能的损耗;氮元素在膜层中呈梯度分布,这有利于对太阳光的吸收。
60 kV+50 kV+40 kV+30 kV+20 kV+10 kV six-grade-implantation of nitrogen ions in Ti film deposited by ion plating on pure Al surface was used for preparing solar selective absorbing coating.The reflectivity to solar spectrum of the prepared coating was measured and absorbtivity was calculated according to it.And thermal emissivity of the coating were also measured.The surface morphology was observed with SEM,and XPS was used to study the surface composition of the coating.The results showed that the absorptiv...
出处
《机械工程材料》
CAS
CSCD
北大核心
2008年第7期41-45,共5页
Materials For Mechanical Engineering
基金
江苏省2005年研究生创新计划资助项目(200541)
关键词
多级离子注入
离子镀
太阳光吸收性
multi-grade ion implantation
ion plating
solar absorption
