摘要
通过闪烧法制备Na离子掺杂钛酸锶钡基陶瓷,研究了外加不同直流电场强度条件下钛酸锶钡基陶瓷的相结构、微观形貌和快速烧结致密化原因。结果表明,在330 V/cm、440 V/cm、550 V/cm和660 V/cm不同电场强度下,相结构均为纯钙钛矿结构,平均晶粒尺寸随电场的增加而减小,闪烧起始温度随电场的升高而降低,当电场强度达到660 V/cm时,其烧结温度为800℃。
The Na doped barium strontium titanate based ceramics was prepared by the flash sintering method.The phase structure,micro-morphology and the rapid sintering densification mechanism of barium strontium titanate based ceramics under different DC electric field intensity were studied.It was found that under different electric field intensities of 330 V/cm,440 V/cm,550 V/cm and 660 V/cm,the phase structure is pure perovskite structure,the average grain size decreased with the increase of electric field,and the initial temperature of flash sintering decreased with the increase of electric field.When the electric field intensity reached 660 V/cm,the sintering temperature was 800℃.
作者
张煜坤
赵鹏
李卓
苏兴华
景明海
王兆丰
ZHANG Yukun;ZHAO Peng;LI Zhuo;SU Xinghua;JING Minghai;WANG Zhaofeng(School of Materials Science and Engineering,Chang’an University,Xi’an 710064,China)
出处
《压电与声光》
CAS
北大核心
2019年第6期880-884,共5页
Piezoelectrics & Acoustooptics
基金
国家自然科学基金资助项目(11604022)
中央高校基本科研业务费专项基金资助项目(300102318203)
关键词
闪烧
致密
钛酸锶钡
微观结构
flash sintering
dense
barium strontium titanate
microstructures
