摘要
采用共沉淀法制备了掺铝氧化锌(ZAO)粉末,研究了反应物终点pH值、煅烧温度、Al3+掺杂量对所合成的ZAO粉末红外辐射率的影响。借助于差热-热重分析(TG-DSC)、X-射线衍射(XRD)、扫描电子显微镜(SEM)、红外辐射率测试对制得的ZAO粉末的形貌、微观结构和红外辐射性能进行表征。研究结果表明,当反应物终点pH=8.5、煅烧温度为650℃、掺杂Al3+的摩尔分数为6%时获得的ZAO粉末的红外辐射率最低;制得的ZAO粉末属于六方晶系纤锌矿结构;具有红外辐射率最低值的ZAO粉末的形状为棒簇状。
Aluminum and Zinc Oxide （ZAO） powders were prepared by coprecipitation method.The effect of pH value,calcination temperature and Al3＋ doping content on the infrared emissivity of ZAO powders was studied.The morphologies,microstructure and infrared emissivity of the obtained ZAO nanoparticles were characterized by DSC-TG,XRD,SEM and emissivity measurement respectively.It was shown that the ZAO powders with the lowest infrared emissivity were obtained when pH value was 8.5,calcination temperature was 650 ℃and Al3＋ doping content was 6%.The obtained powders were hexagonal system.The shape of lowest infrared emissivity ZAO powders was clavule and cluster.
出处
《压电与声光》
CSCD
北大核心
2010年第5期845-848,851,共5页
Piezoelectrics & Acoustooptics
基金
"九七三"基金资助项目(6134502)
江苏省自然科学基金资助项目(BK2007724)
