烧结温度对0.55Pb(Ni_(1/3)Nb_(2/3))O_3-0.45Pb(Zr_(0.3)Ti_(0.7))O_3压电陶瓷性能的影响

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)3-0.45Pb(Zr0.3Ti0.7)O3(0.55PNN-0.45PZT)组分的弛豫型压电陶瓷因具有较高的压电性能,已被作为制备含金属芯压电陶瓷纤维的材料等使用。为了进一步提高压电陶瓷纤维的电学性能,采用传统固相烧结法制备了0.55PNN-0.45PZT压电陶瓷,研究了烧结温度对材料结构、表面形貌和电学性能的影响。结果表明,在烧结温度为1200℃时,材料的各方面性能较佳:密度为8.12g/cm3,d33=850pC/N,kp=0.62,εr=7317,tanδ=0.033,Qm=41.66。

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,εr=7317,tanδ=0.033,and Qm=41.66.