高介电陶瓷NaCu_3Ti_3NbO_(12)预烧粉体球磨制度的优化  

Optimization of Ball-milling Conditions for Presintering Powders of Giant Dielectric NaCu_3Ti_3NbO_(12)Ceramics

作　　者：刘洋[1] 赵旭光[1] 

机构地区：[1]韶关学院化学与环境工程学院,广东韶关512005

出　　处：《中国粉体技术》2015年第2期80-82,共3页China Powder Science and Technology

基　　金：韶关学院应用化学重点学科项目;编号:317-317027;韶关学院科研项目;编号:SY2014KJ06

摘　　要：为了制备性能优异的介电陶瓷材料．以新型高介电陶瓷NaCu3Ti3NbO12预烧粉体为例，对不同球磨制度下的粉体粒度分布进行对比研究。结果表明：高介电陶瓷NaCu3Ti3NbO12预烧粉体优化的球磨制度是球磨时间为8～10h，球料质量比为（3—6）：1；随着球磨时间的增加，粉体粒径逐渐减小：采用经优化后的球磨制度处理的预烧粉体制备的介电陶瓷在1~100 kHz的频率范围内相对介电常数约为6000。To prepare excellent dielectric ceramic materials, the particle size distribution under different milling conditions were researched, using presintering powders of giant dielectric NaCu3Ti3NbO12ceramics as raw materials. The results show that the optimal milling conditions are that the milling time is 8 to 10 h and the mass ratio of ball and powder is （3-6）：1. The particle size decreases as the milling time increases. The sintered ceramics prepared by the optimal presintering powders reveal relative dielectric permittivity of 6 000 in the frequency range of 1 to 100 kHz.

关 键 词：粒径 高介电陶瓷 预烧粉体 球磨制度 

分 类 号：TD921[矿业工程—选矿]