摘要
烧结工艺直接影响陶瓷的显微结构及性能。利用超快速高温工艺制备钛酸钡压电陶瓷,并与常规烧结工艺制备的钛酸钡陶瓷进行对比。研究了超快速高温烧结电流对钛酸钡陶瓷组成、结构以及性能的影响。结果表明:超快速高温烧结可以抑制晶粒的生长,采用超快速高温烧结工艺在电流为180 A保温5 min后,钛酸钡陶瓷的室温相对介电常数为3450、介电损耗为1.89%、压电常数为283 p C·N^(–1),这些性能均与常规烧结钛酸钡性能相当,超快速高温整个烧结时间较常规工艺缩短了196倍,是一种新型高效功能陶瓷烧结方法。
Sintering process directly affects the microstructure and properties of ceramics.BaTiO3piezoelectric ceramic was sintered by an ultrafast-high temperature sintering method.The result was compared with that of BaTiO3sintered by a conventional furnace sintering method.The effect of sintering current on the phase composition,microstructure and property of BaTiO3sintered in ultrafast-high temperature sintering method was investigated.Ultrafast-high temperature sintering suppresses the grain growth.After ultrafast sintering at 180 A for 5 min,the superior property with the dielectric constant of 3450,dielectric loss of 1.89%and piezoelectric constant 283 pC·N–1is obtained.The whole sintering time is reduced by 196 times,indicating that ultrafast-high temperature sintering is a promising densification method for functional materials.
作者
冷森林
刘强
曹珍珠
严霜
曹艳萍
LENG Senlin;LIU Qiang;CAO Zhenzhu;YAN Shuang;CAO Yanping(College of Material and Chemical Engineering,Tongren University,Tongren 554300,Guizhou,China;College of Chemical Engineering,Inner Mongolia University of Technology,Hohhot 010051,China)
出处
《硅酸盐学报》
EI
CAS
CSCD
北大核心
2023年第3期698-705,共8页
Journal of The Chinese Ceramic Society
基金
国家自然科学基金(51767021)
贵州省科技计划(黔科合成果[2021]110)
贵州省教育厅创新团队(KY[2018]030)
无铅压电陶瓷研发(RH2100001551)。
关键词
钛酸钡
压电陶瓷
快速烧结
性能
barrium titanate
piezoelectric ceramic
fast sintering
peroperty
