电子元件与材料2012,Vol.31Issue(5):8-11,4.
添加Bi4Ti3O12对BST陶瓷性能的影响
Effects of adding Bi4Ti3O12 on properties of BST ceramics
摘要
Abstract
Bi4Ti3O12(BlT) added (Ba0.71Sr0.29)TiO3(BST) ceramics were prepared by solid state method. Effects of BIT adding amount on the dielectric properties and microstructure of prepared BST ceramics were investigated. The results show that the crystal grain size decreases first and then increases, the relative permittivity (e,) decreases, the dielectric loss (tanδ) decreases first and then increases when BIT adding amount incerases. The BST ceramics prepared with mass fraction of 26% of BIT and sintered at 1 120 ℃ possess good comprehensive properties: sr of 1 700, tanδ of 0.006. The capacitance temperature property of the BST ceramics is suited for X7R, and the DC withstand voltage strength is 5.0× 103 V/mm.关键词
电容器陶瓷/钛酸锶钡/Bi4Ti3O12添加量/介电性能Key words
capacitor ceramics/ barium and strontium titanate/ Bi4Ti3Oi2 addition amount/ dielectric property分类
信息技术与安全科学引用本文复制引用
黄新友,李言,高春华,林榕,黄瑞南..添加Bi4Ti3O12对BST陶瓷性能的影响[J].电子元件与材料,2012,31(5):8-11,4.基金项目
江苏省科技支撑计划资助项目(No.BE2008029) (No.BE2008029)
广东省教育部产学研结合项目资助(No.2011B090400027) (No.2011B090400027)