Effects of sintering temperature on piezoelectric property of 0.55Pb(Ni_(1/3)Nb_(2/3))O_3-0.45Pb(Zr_(0.3)Ti_(0.7))O_3 ceramics

0.55Pb(Ni1/3Nb2/3)O3-0.45Pb(Zr0.3Ti0.7)O3 (0.55PNN-0.45PZT) piezoelectric ceramics are high-performance piezoelectric materials,which are widely used to fabricate the fibers with Pt core and other electronic devices.In order to improve the electrical properties of the piezoelectric ceramic fibers,the 0.55PNN-0.45PZT ceramics with high electrical properties were fabricated by the traditional sintering method in this study.The effects of sintering temperature on the phase structure,microstructure and electrical properties of material have been investigated.High electrical properties ceramic were fabricated by optimizing the sintering temperature.The highest piezoelectric properties were achieved when the ceramics were sintered at 1200℃,and their values were ρ=8.12g/cm3,d33=850pC/N,kp=0.62,er=7317,tanδ=0.033,and Qm=41.66.