xPb(Y_(1/2)Nb_(1/2))O_3-(1-x)Pb(Zr_(1/2)Ti_(1/2))O_3铁电陶瓷性能研究  

Study on xPb(Y_(1/2)Nb_(1/2))O_3-(1-x)Pb(Zr_(1/2)Ti_(1/2) )O_3 Ferroelectric Ceramics

作　　者：董火民[1] 王矜奉[1] 王勇军[1] 陈洪存[1] 田青[2] 李明明[3] 

机构地区：[1]山东大学物理系,济南250100 [2]山东省科学院能源研究所,济南250001 [3]济南大学物理系,济南250002

出　　处：《压电与声光》2001年第5期370-372,共3页Piezoelectrics & Acoustooptics

基　　金：山东省自然科学基金资助项目 ( 99F0 8)

摘　　要：系统地研究了 x Pb(Y1 / 2 Nb1 / 2 ) O3- (1- x) Pb(Zr1 / 2 Ti1 / 2 ) O3三元系铁电陶瓷材料 ,测量并计算了不同组分时的压电常数 (d33 )、介电常数 (εT3 3/ ε0 )、机电耦合系数 (kp、k31 )、以及弹性柔顺系数 (s E1 1 、s E1 2 、s E3 3 ) ,对 0 .0 7Pb(Y1 / 2Nb1 / 2 ) O3- 0 .93Pb(Zr1 / 2 Ti1 / 2 ) O3材料 ,d33 为 32 7× 10 - 1 2 C/ N,介电常数 εT3 3/ ε0 为 135 0 ,机电耦合系数 kp 大于 0 .6 ,弹性常数 SE1 1 和 SE3 3 均大于 17× 10 - 1 2 m2 / N。实现发现 ,当 x大于 0 .5 5时 ,x Pb(Y1 / 2 Nb1 / 2 ) O3- (1- x) Pb(Zr1 / 2 Ti1 / 2 )Perovskite x Pb(Y 1/2 Nb 1/2 )O 3 (1- x )Pb(Zr 1/2 Ti 1/2 )O 3 ternary ceramics were composed The variations in piezoelectric constants,electromechanical constants,dielectric constants and elastic constants of xPb(Y 1/2 Nb 1/2 )O 3 (1-x)Pb(Zr 1/2 Ti 1/2 )O 3 ternary ceramics with x investigated It is shown that the piezoelectric constant d 33 is 325×10 -12 C/N,dielectric constant ε T 33 /ε 0 is 1 350,electromechanical constant k p is larger than 0 6,elastic constant both s E 11 and s E 33 are greater than 17×10 -12 m 2/N for the composition 0 07Pb(Y 1/2 Nb 1/2 )O 3 0 93Pb(Zr 1/2 Ti 1/2 )O 3,near the morphotropic phase boundary (MPB) This ceramics is a quite soft piezoelectric material,its mechanical quality factor Q m is about 40 It is found from the experiment that xPb(Y 1/2 Nb 1/2 )O 3 (1-x)Pb(Zr 1/2 Ti 1/2 )O 3 ternary ceramics are no longer ferroelectric materials as x is larger than 0 55

关 键 词：压电陶瓷 机电耦合系数 铁电陶瓷 

分 类 号：TN304.9[电子电信—物理电子学] TM282[一般工业技术—材料科学与工程]