0.94[(Na_(0.96-x)K_xLi_(0.04))_(0.5)Bi_(0.5)]TiO_3-0.06Ba(Zr_(0.055)Ti_(0.945))O_3无铅压电陶瓷的压电介电特性  

Dielectric and piezoelectric characteristics of lead-free 0.94[(Na_(0.96-x)K_xLi_(0.04))_(0.5)Bi_(0.5)]TiO_3-0.06Ba(Zr_(0.055)Ti_(0.945))O_3 ceramics

作　　者：盖志刚[1] 王矜奉[1] 明保全[1] 杜鹃[1] 郑立梅[1] 

机构地区：[1]山东大学物理与微电子学院晶体材料国家重点实验室,济南250100

出　　处：《功能材料与器件学报》2006年第1期15-18,共4页Journal of Functional Materials and Devices

基　　金：国家自然科学基金(No.50072013);山东省自然科学基金(No.Z2003F04)

摘　　要：对无铅压电陶瓷0.94[(Na0.96-xKxLi0.04)0.5B i0.5]TiO3-0.06Ba(Zr0.055Ti0.945)O3的性质随K含量的变化进行了系统研究,获得压电应变常数d33高达185pC/N的0.94[(Na0.80K0.16Li0.04)0.5-B i0.5]TiO3-0.06Ba(Zr0.055Ti0.945)O3压电陶瓷。随着K掺杂量的增加,该陶瓷材料的介电温谱峰值向右明显移动,其介电峰温度明显升高。Lead - free piezoelectric ceramics 0.94[（Na0.96-xKxLi0.04）0.5Bi0.5]TiO3-0.06Ba（Zr0.055Ti0.945）O3 were fabricated with the variation of K content and their dielectric and piezoelectric characteristics were also investigated. The 0.94[（Na0.96-xKxLi0.04）0.5Bi0.5]TiO3-0.06Ba（Zr0.055Ti0.945）O3 ceramics with a piezoelectric strain constant d33 as high as 185 pC/N are obtained. The results show that the peak in the dielectric constant curve versus temperature moves rightward with the increase of K content. Accordingly, the temperature corresponding to maximum dielectric constant for the ceramics increases slightly.

关 键 词：无铅压电陶瓷 介电常数 介电损耗 压电性能 

分 类 号：TM22[一般工业技术—材料科学与工程]