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

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    • Keywords


      Lead-free piezoelectric ceramics; perovskite structure; substitution.

    • Abstract


      To develop new (Bi1/2Na1/2)TiO3-based ceramics with excellent piezoelectric properties, the similarities and the differences between PZT and (Bi1/2Na1/2)TiO3 ceramics were analysed. Based on the analysis, a new (Bi1/2Na1/2)TiO3-based piezoelectric ceramic of B-site substitution of complex ions (Mg1/3Nb2/3)4+ for Ti4+ was prepared by a conventional ceramic technique, and effect of complex ions (Mg1/3Nb2/3)4+ addition on the microstructure, dielectric and piezoelectric properties was investigated. The results show that all compositions are mono-perovskite phase and the grain size increases with increasing content of (Mg1/3Nb2/3)4+. The piezoelectric constant, 𝑑33, first increases and then decreases, and electromechanical coupling factor, 𝑘p, varies insignificantly with increasing content of (Mg1/3Nb2/3)4+.

    • Author Affiliations


      Zhou Chang-Rong1 Liu Xin-Yu1 Li Wei-Zhou2 Yuan Chang-Lai1

      1. Department of Information Material Science and Engineering, Guilin University of Electronic Technology, Guilin, Guangxi 541004, P.R. China
      2. School of Materials Science and Engineering, Guangxi University, Nanning, Guangxi 530004, P.R. China
    • Dates

  • Bulletin of Materials Science | News

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      Posted on July 25, 2019

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