Zn2SiO4微波陶溶胶-凝胶法制备及性能研究

稀有金属材料与工程, 2008, 37(z2): 575-578.

Zn2SiO4微波陶溶胶-凝胶法制备及性能研究

邹佳丽 ^1, , 张启龙 ^2, , 杨辉 ^3, , 孙慧萍 ^4,

1.浙江大学,浙江,杭州,310027

2.浙江大学,浙江,杭州,310027

3.浙江大学,浙江,杭州,310027;浙江大学绿色建材与应用技术工程研究中心,浙江,杭州,310027

4.浙江大学,浙江,杭州,310027

基金项目: 浙江省重点项目(2006C11119)

关键词：微波介质陶瓷 , Zn2SiO4 , 溶胶凝胶法 , 介电性能

Preparation and Dielectric Properties of Zn2SiO4 Microwave Ceramics by Sol-Gel Method

以Zn(NO3)2·6H2O和正硅酸乙酯为前驱体,乙醇作为溶剂,采用溶胶-凝胶法制备了ZnzSiO4微波陶瓷粉体,并研究了粉体的烧结特性和微波介电性能.干凝胶在800℃热处理后得到的ZnO和Zn2SiO4纳米级混合粉体.溶胶凝胶法制各的粉体具有更大的比表面积,使作为粉体烧结驱动力的表面能剧增,促使陶瓷在1200～1350℃实现致密烧结,比固相法合成粉体的烧结温度降低近200℃,并具有优异的介电性能:εr=6.14,Qf=67,500 GHz(12 GHz).

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Zn2SiO4微波陶溶胶-凝胶法制备及性能研究

Preparation and Dielectric Properties of Zn2SiO4 Microwave Ceramics by Sol-Gel Method

参考文献