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Sodium bismuth titanate (Na1/2 Bi1/2) TiO3, pure or in solid solution with BaTiO3, (1-x)Na0.5Bi0.5TiO3-xBaTiO3, can be a promising lead-free ferroelectric material for replacing lead zirconate titanate. In bulk, at morphotropic phase boundary (x = 0.06) it has attractive properties such as remanent polarization of 38 muC cm-2 and a coercive field of 73 kV cm-1 at room temperature, with a relatively...
The phase transition temperatures and the dielectric, ferroelectric, and piezoelectric properties of bismuth perovskite lead-free ferroelectric ceramics such as (Bi1/2Na1/2)TiO3 (BNT)- and (Bi1/2Na1/2)TiO3 (BKT)-based solid solutions have been reviewed. According to the results obtained by our group, these ceramics can be considered as superior lead-free piezoelectric materials for reducing environmental...
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