Properties of 0.015PSN–0.3PNN–0.685PZT ceramics near morphotropic phase boundary
Properties of 0.015PSN–0.3PNN–0.685PZT ceramics near morphotropic phase boundary
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DOI：
10.1016/j.matlet.2015.06.113
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发表时间：
2015-11
影响因子：
3
通讯作者：
Yaoxian Guo;W. Ma;Mingyang Wang;N. Chen
中科院分区：
文献类型：
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作者：
Yaoxian Guo;W. Ma;Mingyang Wang;N. Chen
本文采用常规混合氧化物法制备了0.015Pb(Sb1/2Nb1/2)O3 - 0.3 pb (Ni1/3Nb2/3)O3 - 0.685 pb (ZrxTi1−x)O3（x= 0.42-0.44）陶瓷。研究了具有可变Zr/Ti的0.015PSN-0.3PNN-0.685PZT陶瓷的致形相界（MPB）。MPB组合物（x=0.43）具有较高的性能。在1240℃下烧结2 h， Zr/Ti=43/57试样的最佳电性能为：d33=643 pC/N,Kp=0.67,ε33T/ε0=4349, tanδ=1.67%,Tc=229℃，Pr=33.53 μC/cm2。特别是，在相当低的电场（0.8 kV/mm）下，具有MPB成分的试样的归一化应变smax / emax可以扩展到1613 pm/V，其可逆应变为0.258%，显示出大位移执行器应用的巨大潜力。
In this work 0.015Pb(Sb1/2Nb1/2)O3–0.3Pb(Ni1/3Nb2/3)O3–0.685Pb(ZrxTi1−x)O3(x=0.42–0.44) ceramics were prepared by a conventional mixed oxide method. The morphotropic phase boundary (MPB) of 0.015PSN–0.3PNN–0.685PZT ceramics with a variable Zr/Ti was investigated. The MPB composition (x=0.43) possessed high performances. The optimal electric properties of the specimen with Zr/Ti=43/57 were obtained by sintering for 2 h at 1240 °C:d33=643 pC/N,Kp=0.67,ε33T/ε0=4349, tanδ=1.67%,Tc=229 °C,Pr=33.53 μC/cm2. Particularly, the specimen with MPB composition whose normalized strainSmax/Emaxcan extend up to 1613 pm/V under a considerable low electric field (0.8 kV/mm)exhibited a superior reversible strain of 0.258%, showing great potentials for large-displacement actuator applications.