Effects of Nano-Sized In2O3 on Sintering Behavior and Electrical Properties of 0.28Pb(In1/2Nb1/2)O3-0.40Pb(Mg1/3Nb2/3)O3-0.32PbTiO3 Ceramics

• Published in: Integrated ferroelectrics Vol. 211; no. 1; pp. 1 - 17
• Main Authors: Wang, Yekai, Fang, Bijun, Lu, Xiaolong, Zhang, Shuai, Ding, Jianning
• Format: Journal Article
• Language: English
• Published: Philadelphia Taylor & Francis 12.10.2020; Taylor & Francis Ltd
• Subjects: Ceramics; Curie temperature; Electrical properties; Ferroelectric materials; Ferroelectricity; High temperature; Indium oxides; nano-sized In; Perovskite structure; Perovskites; Phase transitions; piezoelectric thermal stability; Piezoelectricity; PIN-PMN-PT; Solid phases; Solid solutions; Temperature; Thermal stability; Transition temperature
• ISSN: 1058-4587; 1607-8489
• DOI: 10.1080/10584587.2020.1803670

0.28Pb(In 1/2 Nb 1/2 )O 3 -0.40Pb(Mg 1/3 Nb 2/3 )O 3 -0.32PbTiO 3 ceramics were synthesized by conventional solid-phase method using nano-sized In 2 O 3 . All the sintered 0.28PIN-0.40PMN-0.32PT ceramics have pure perovskite structure with composition locating at rhombohedral side around the morphotropic phase boundary (MPB) region. The 0.28PIN-0.40PMN-0.32PT ceramics belong to displacive driving ferroelectrics with apparent diffused phase transition characteristic. Although the rhombohedral-tetragonal ferroelectric phase transition temperature (T R-T ) increases only to ∼120 °C due to the solid solution of Pb(In 1/2 Nb 1/2 ) (PIN), the 0.28PIN-0.40PMN-0.32PT ceramics present high piezoelectric thermal stability till around the Curie temperature (T m ), which extremely widens the working temperature range and makes the 0.28PIN-0.40PMN-0.32PT ceramics suitable for high-temperature piezoelectric applications.