ZrO2-SiO2复合物作为MgO粉高温添加剂的电学性能研究  

Electrical properties of ZrO_2-SiO_2 compound as MgO power additive

作　　者：杨利[1] 王士卫[1] 梁其照[1] 张同来[1] 

机构地区：[1]北京理工大学机电学院,爆炸科学与技术国家重点实验室,北京100081

出　　处：《功能材料》2011年第B11期813-816,共4页Journal of Functional Materials

基　　金：应用物理化学科学与技术实验室资助项目(9140C3703051105);爆炸科学与技术国家重点实验室资助项目(YBKT10-05,ZDKT10-01b)

摘　　要：采用溶胶-凝胶法合成了ZrO2-SiO2复合物,通过电参数测试仪、泄漏电流测试仪测量了加入ZrO2-SiO2复合物后的电工级MgO粉的电学参数和泄漏电流,分析了ZrO2-SiO2复合物用量、ZrO2和SiO2质量配比以及退火工艺对其电学性能的影响。研究表明,将ZrO2和SiO2质量配比为4∶6,用量为2%的ZrO2-SiO2复合物装入电热管中,经退火工艺处理后管子的泄漏电流最小,较适合作为电工级MgO粉的高温添加剂。In this paper,ZrO2-SiO2 compound was synthesized by sol-gel method,electric parameter tester and thermic voltage tester were used to measure the electric parameters and thermic voltage of the MgO which was added into ZrO2-SiO2 compound.The effect on electrical insulation of the added amount of ZrO2-SiO2 compound,the ratio between ZrO2 and SiO2 and annealing technics were analyzed.The results show that the leakage current will be the smallest after the annealing technique when the mass ratio between ZrO2 and SiO2 is 4∶6 and the added amount of ZrO2-SiO2 compound is 2%,and it will be appropriate to be used as high temperature electrical grade MgO powder insulation additives.

关 键 词：ZrO2-SiO2复合物 溶胶-凝胶法 电工级MgO粉 泄漏电流 退火工艺 

分 类 号：TQ170.12[化学工程—硅酸盐工业]