纳米钛酸钡的制备及组织与性能分析  

Preparation of Nanometer Barium Titanate and Analysis of Microstructure and Properties

作　　者：孙玉泉[1] 

机构地区：[1]潍坊工程职业学院应用化学与生物工程学院,山东青州262500

出　　处：《铸造技术》2015年第5期1115-1117,共3页Foundry Technology

摘　　要：采用溶胶-水解法制备了纳米级的钛酸钡粉体,并对其进行了压片和高温烧结,研究了钛酸钡粉体的结构特征和纳米钛酸钡压片的微观结构和介电性能。结果表明,在制备钛酸钡过程中,调整p H值可以改变粉体的晶相结构;提高钛酸钡的烧结温度,可以提高钛酸钡陶瓷的致密性,使钛酸钡陶瓷的介电常数上升。The nanometer barium titanate powder was prepared by sol-hydrolysis method, and the barium titanate powders were pressed and sintered at high temperature, the microstructure and dielectric properties of barium titanate powder and nano barium titanate pellet were studied. The results show that adjusting the p H value can change the powder crystal structure in the preparation of barium titanate process. Improving the sintering temperature of barium titanate can increase the density of barium titanate ceramics, and rise the dielectric constant of barium titanate ceramics.

关 键 词：纳米 钛酸钡 组织 性能 

分 类 号：TQ132.35[化学工程—无机化工] TB383.1[一般工业技术—材料科学与工程]