【摘要】 采用溶胶凝胶燃烧合成法制备了ZAO(掺铝氧化锌)粉末,借助于DSC-TG、XRD、SEM、反射率测试、红外辐射率测试对制得的ZAO粉末的形貌、微观结构、激光吸收性能和红外辐射性能进行表征。研究结果表明,制备的ZAO粉末属于六方晶系纤锌矿结构。XRD分析表明煅烧温度提高到700℃后,ZAO的晶相形成的更好。SEM图中可以看出,随着Al离子的掺杂量增加,ZAO粉末的粒径越来越小,形状越来越不规则。反射率图谱表明,在900~1200nm波长范围,存在较强的激光吸收。红外辐射率测试表明ZAO粉末具有中等红外辐射率。更多还原

【Abstract】 Aluminum and zinc oxide(ZAO) powders were prepared by sol-gel combustion method.The morphologies,microstructure,laser Absorbency and infrared emissivity of the obtained ZAO nanoparticles were characterized by DSC-TG,XRD,SEM,reflectivity analyzer and emissivity measurement respectively.It was shown that the ZAO was hexagonal system.XRD patterns showed that the calcination temperature was higher than 700℃,and the crystalling phase was better.From the SEM images,the particle size of ZAO powders decreased with the increasing Al3+ doping content,and anomalous shape also increased.The ZAO powder has strong laser Absorption at 900-1200nm wavelength range.At the same time,ZAO powder has medium infrared emissivity.更多还原