Preparation of (Bi_(1/2)Ti_(1/2)TiO_3-Bi(Mg_(1/2)Ti_(1/2)O_3-BiFeO_3 Ceramics with Nanodomain Structure and Their Piezoelectric Properties

摘要

Lead-free (Bi_(0.5)K_(0.5))TiO_3)-Bi(Mg_(0.5)Ti_(0.5))O_3-BiFeO_3 (BT-BMT-BF) ceramics were prepared by a conventional solid-state synthesis. Synchrotron x-ray diffraction studies indicated two compositional phase boundaries. An increased strain of 0.070% was obtained at 50 kV/cm, 1 Hz, 25 °C for one of the phase boundary compositions of 0.45BKT-0.1BMT-0.45BF with the temperature of the dielectric maximum of 331 °C.