Effect of substitution of titanium by magnesium and niobium on structure and piezoelectric properties in (Bi1/2Na1/2)TiO3 ceramics

Bulletin of materials science

Liu Xin-Yu¹  Yuan Chang-Lai¹  Li Wei-Zhou³  Zhou Chang-Rong² 

[1] Department of Information Material Science and Engineering, Guilin University of Electronic Technology, Guilin, Guangxi 541004, P.R. China$$Department of Information Material Science and Engineering, Guilin University of Electronic Technology, Guilin, Guangxi 541004, P.R. ChinaDepartment of Information Material Science and Engineering, Guilin University of Electronic Technology, Guilin, Guangxi 541004, P.R. China$$;Department of Information Material Science and Engineering, Guilin University of Electronic Technology, Guilin, Guangxi 541004, P.R. China$$School of Materials Science and Engineering, Guangxi University, Nanning, Guangxi 530004, P.R. China$$Department of Information Material Science and Engineering, Guilin University of Electronic Technology, Guilin, Guangxi 541004, P.R. ChinaDepartment of Information Material Science and Engineering, Guilin University of Electronic Technology, Guilin, Guangxi 541004, P.R. China$$School of Materials Science and Engineering, Guangxi University, Nanning, Guangxi 530004, P.R. China$$School of Materials Science and Engineering, Guangxi University, Nanning, Guangxi 530004, P.R. ChinaDepartment of Information Material Science and Engineering, Guilin University of Electronic Technology, Guilin, Guangxi 541004, P.R. China$$School of Materials Science and Engineering, Guangxi University, Nanning, Guangxi 530004, P.R. China$$;School of Materials Science and Engineering, Guangxi University, Nanning, Guangxi 530004, P.R. China$$School of Materials Science and Engineering, Guangxi University, Nanning, Guangxi 530004, P.R. ChinaSchool of Materials Science and Engineering, Guangxi University, Nanning, Guangxi 530004, P.R. China$$

关键词: Lead-free piezoelectric ceramics;    perovskite structure;    substitution.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

To develop new (Bi_1/2Na_1/2)TiO₃-based ceramics with excellent piezoelectric properties, the similarities and the differences between PZT and (Bi_1/2Na_1/2)TiO₃ ceramics were analysed. Based on the analysis, a new (Bi_1/2Na_1/2)TiO₃-based piezoelectric ceramic of B-site substitution of complex ions (Mg_1/3Nb_2/3)⁴⁺ for Ti⁴⁺ was prepared by a conventional ceramic technique, and the effect of complex ions (Mg_1/3Nb_2/3)⁴⁺ addition on the microstructure, dielectric and piezoelectric properties was investigated. The research results show that all compositions are mono-perovskite phase and the grain size increases with increasing content of (Mg_1/3Nb_2/3)⁴⁺. The piezoelectric constant $d_{33}$ first increases and then decreases, and electromechanical coupling factor $k_{p}$ varies insignificantly with increasing content of (Mg_1/3Nb_2/3)⁴⁺.

【 授权许可】

Unknown