玻璃掺杂及烧结工艺对BCZT压电陶瓷的影响
Effect of Glass Doping and Sintering Process on BCZT Piezoelectric Ceramics
周源 1曾梦诗 1曹丽嘉 1余洪滔1
作者信息
- 1. 西南科技大学材料与化学学院,绵阳 621010
- 折叠
摘要
采用传统的固相反应法制备了(Ba0.85Ca0.15)(Ti0.9Zr0.1)O3(BCZT)以及掺杂Al-Mg-Ca玻璃粉的BCZT无铅压电陶瓷.首先研究了预烧温度对BCZT陶瓷粉体的影响,其次研究了掺杂Al-Mg-Ca玻璃粉对BCZT无铅压电陶瓷的烧结性能、介电性能和压电性能的影响.最后通过正交试验确定了其烧结工艺.结果显示BCZT粉体的最佳预烧温度在1100 ℃.掺杂Al-Mg-Ca玻璃粉能够有效降低BCZT陶瓷的烧结温度.通过烧结工艺正交实验获得了最佳烧结工艺:1100 ℃预烧,1350 ℃烧结,升温速度为2 ℃/min,保温时间为7 h,在110 min降温至800 ℃.验证正交试验所得到的结果是掺杂Al-Mg-Ca玻璃粉的BCZT陶瓷的居里温度点的介电常数为12228,压电常数d33为425 pC/N.
Abstract
(Ba0.85Ca0.15)(Ti0.9Zr0.1)O3(BCZT)and BCZT lead-free piezoelectric ceramics doped with Al-Mg-Ca glass powder were prepared using the traditional solid-state reaction method.This study first investigated the influence of pre-sintering temperature on BCZT ceramic powder,followed by studying the influence of doping Al-Mg-Ca glass powder on the sintering,dielectric and piezoelectric properties of BCZT lead-free piezoelectric ceramics.Finally,the sintering process was determined by an orthogonal test.The results show that the optimal pre-sintering temperature for BCZT powder was 1100 ℃.Doping Al-Mg-Ca glass powder effectively reduced the sintering temperature of BCZT ceramics.The optimum sintering process was obtained by an orthogonal experiment:pre-firing at 1100 ℃,sintering at 1350 ℃,heating rate of 2 ℃/min,a holding time of 7 h,cooling to 800 ℃ in 110 min.The results obtained by verifying the orthogonal test are that the dielectric constant at the Curie temperature point of BCZT ceramics doped with Al-Mg-Ca glass powder is 12228,and the piezoelectric constant d33 is 425 pC/N.
关键词
无铅压电陶瓷/锆钛酸钡钙(BCZT)/正交试验/压电性能Key words
Lead-free piezoelectric ceramics/Barium calcium zirconate titanate(BCZT)/Orthogonal test/Piezoelectric properties引用本文复制引用
出版年
2024
NETL
NSTL
万方数据