Characterization of the Bismuth-Based Piezoelectric Ceramic System (1-x)Bi(Mg1/2Zr1/2)O3-xPbTiO3

摘要：

　　Dielectric properties and structural morphology of the Sc2O3 free and reduced lead content piezoelectric ceramic system,(1-x)Bi(Mg1/2Zr1/2)O3-xPbTiO3 (BMZ-xPT),were investigated in this study.The average grain size of the fresh fractured surfaces was of the order of ≤ 1 μm to ~3μm.The dielectric constant,loss tangent,Curie temperature,remnant polarization,coercive field,piezoelectric coefficient,and the planer coupling constant of ceramics in the vicinity of the morphotropic phase boundary (MPB) (x~0.55) were,~1450,0.0952,~553 K,29 (μC/cm2),23 (kV/cm),~185 pC/N,and ~30%,respectively.It was observed that with decreasing PbTiO3 contents the phase transition anomaly became broadened.The position of the dielectric constant maximum (ε′max) did not show any significant variation with probe frequency,exhibiting character of diffuse phase transition like many other disordered perovskites.

关键词： Piezoelectric ceramics Diffuse phase transition Morphotropic phase boundary

作者: G.Shabbir A.H.Qureshi

作者单位: Physics Division,Directorate of Science,PINSTECH,Islamabad 45650,Pakistan Materials Division,PINSTECH,Post Office Nilore,Islamabad,Pakistan

会议类型: 国际会议

会议名称: The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))

会议地点: 长沙

会议语种:英文

页码: 33-36

在线出版日期: 2007-05-10（万方平台首次上网日期，不代表论文的发表时间）