Effect of Sb-induced oxygen octahedral distortion on piezoelectric performance and thermal stability of Pb(In,Nb)O_(3)-Pb(Hf,Ti)O_(3)ceramics  

作　　者：Huanli Shi Mo Zhao Dongyan Zhang Zhimin Li Maolin Zhang Jingya Wang Li Jin Yangxi Yan 

机构地区：[1]School of Advanced Materials and Nanotechnology,Xidian University,Xi’an 710071,China [2]National Ceramic Industry Design Institute of China,Quanzhou 362500,China [3]Electronic Materials Research Laboratory,Key Laboratory of the Ministry of Education,School of Electronic Science and Engineering,Xi’an Jiaotong University,Xi’an 710049,China [4]State Key Laboratory of Intense Pulsed Radiation Simulation and Effect(Northwest Institute of Nuclear Technology),Xi’an 710024,China [5]Shaanxi Applied Physics and Chemistry Research Institute,Xi’an 710061,China

出　　处：《Journal of Materials Science & Technology》2023年第30期101-110,共10页材料科学技术（英文版）

基　　金：The authors would like to acknowledge the support of the National Ceramic Industry Design Institute of China(No.NICID2022Z02);the Instrumental Analysis Center of Xidian Uni-versity for providing test equipment,and also acknowledge the fi-nancial support of the Key Research and Development Program of Shaanxi(No.2022GY-184).

摘　　要：The combination of excellent thermal stability and outstanding electrical performance is of great sig-nificance for piezoelectric ceramics.Herein,we have prepared 0.11Pb(In_(0.5)Nb_(0.5))O_(3)-0.89Pb(Hf_(0.47)Ti_(0.53))O_(3)-Sb_(2)O_(5)(PIN-PHT-x Sb)ceramics by solid-phase method and investigated the effect of oxygen octahedral lattice distortion on microstructure and macroscopic electrical properties.The distortion index of oxygen octahedra is studied by Rietveld refinement,showing that optimal octahedral distortion can soften B-O repulsion,disrupt long-range ordered ferroelectric domains,and enhance local heterogeneities,signifi-cantly increasing piezoelectric properties.Moreover,outstanding thermal stability and ultrahigh piezo-electric response of PIN-PHT-1.2Sb ceramics are realized under the synergistic influence of octahedral distortion,excellent density,and large grain size.Compared with PIN-PHT ceramics,PIN-PHT-1.2Sb ce-ramics exhibit ultrahigh piezoelectric responses(d_(33)=706 pC/N,k_(p)=0.68,ε_(r)=3244),a high Curie temperature(T C)of 300℃,excellent thermal stability,and anti-fatigue properties.

关 键 词：Oxygen octahedron Piezoelectric response Thermal stability 

分 类 号：TB3[一般工业技术—材料科学与工程]