节点文献

Ag_0.9Na_0.1(Nb_0.6Ta_0.4)O₃纳米陶瓷粉体的制备与介电性能研究

Preparation of Nanosized Ag_0.9Na_0.1 (Nb_0.6Ta_0.4)O₃ Ceramic Powder and Inuestigation on Its Dielectric Property

推荐 CAJ下载
PDF下载
不支持迅雷等下载工具，请取消加速工具后下载。

【Author】 Song Kuanxiu;Yan Yuqing;Li Jinhua;Wang Jianping Department of Science, Tianjin University.Tianjin 30072 Department of Environment and Security, Huabei Institute of Science and Technology, Beijing 101601

【机构】天津大学理学院化学系；华北科技学院环境与安全系；天津大学理学院化学系天津 300072；北京 101601；天津 300072；天津 300072；

【摘要】采用湿化学法合成出组成为(Ag_0.9Na_0.1)(Nb_0.6Ta_0.4)O₃的复合氧化物,应用TG-DTA,XRD,SEM等分析手段对该陶瓷粉体的制备条件进行了研究。实验结果表明:该瓷粉的合成温度为800℃,灼烧时间3h,晶体为六方晶系,平均粒径为34nm。用传统成瓷工艺在1040-1060℃下制得瓷件的介电常数ε>500,损耗角正切tgδ为4.5×10^-4。更多还原

【Abstract】 In this paper, Ag_0.9Na_0.1(Nb_0.6Ta_0.4)O₃ complex oxide powder was prepared through wet method. Thepreparing condition was investigated by TG-DTA, XRD and TEM. The result shows that the synthetical temperature is800℃, the calcining time is three hours, the crystal is hexagonal and the size of the powder is about 34nm. The di-electric constant of ceramic sample prepared under traditional techniques is more than 500, dielectric loss tgδ is 4.5×10^-4.更多还原