文摘
A low sintering temperature is demonstrated for (Ba0.85Ca0.15)1?em>xLix(Ti0.90Zr0.10)1?em>xNbxO3 (BCLTZN-x) piezoelectric ceramics, where BCLTZN-x lead-free piezoelectric ceramics were prepared by the normal sintering. Effects of Li and Nb on the microstructure and electrical properties of these ceramics were investigated. The sintering temperature of BCLTZN-x ceramics was decreased greatly by introducing Li and Nb, and the grain size of these ceramics decreases with increasing x. These ceramics with a small amount of Li and Nb maintain good piezoelectric properties, together with a low sintering temperature and a lower dielectric loss. These ceramics with x = 0.01 demonstrate optimum electrical properties: d33 ?#xA0;353 pC/N, kp ?#xA0;41.1 % , Tc ?#xA0;86 ¡ãC, ?r ?#xA0;4236, and tan ¦Ä ?#xA0;0.75 % .