<p>30Pb(In<sub>1/2</sub>Nb<sub>1/2</sub>)O<sub>3</sub>-38Pb(Mg<sub>1/3</sub>Nb<sub>2/3</sub>)O<sub>3</sub>-32PbTiO<sub>3</sub> ceramics with BaTiO<sub>3</sub> additive were prepared by the conventional two-step solid state sintering method. The effects of BaTiO<sub>3</sub> additive on phase structure, microstructure and electric properties of PIN-PMN-PT ceramics were investigated. The incorporation of BaTiO<sub>3</sub> into the PIN-PMN-PT solid solutions leads to a crystallographic transformation from rhombohedral to tetragonal. With the increasing of BaTiO<sub>3</sub> contents, rhombohedral-tetragonal phase transition temperature <i>T</i><sub>rt</sub> and Curie temperature <i>T</i><sub>c</sub> decrease slightly and dielectric constant increase. The piezoelectric coefficient<i> d</i><sub>33</sub>, electromechanical coupling factor <i>k</i><sub>p</sub> and electric field induced strain <i>S</i> were improved by BaTiO<sub>3</sub> incorporation, reaching maximum of 342 pC/N, 0.45 and 0.142% at 3&#xa0;mol%, respectively.</p>

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Electric properties of PIN-PMN-PT ceramics with BaTiO3 additive

  • Weihong Yang,
  • Kailai Lu,
  • Ran Zhuo,
  • Jie Wu

摘要

30Pb(In1/2Nb1/2)O3-38Pb(Mg1/3Nb2/3)O3-32PbTiO3 ceramics with BaTiO3 additive were prepared by the conventional two-step solid state sintering method. The effects of BaTiO3 additive on phase structure, microstructure and electric properties of PIN-PMN-PT ceramics were investigated. The incorporation of BaTiO3 into the PIN-PMN-PT solid solutions leads to a crystallographic transformation from rhombohedral to tetragonal. With the increasing of BaTiO3 contents, rhombohedral-tetragonal phase transition temperature Trt and Curie temperature Tc decrease slightly and dielectric constant increase. The piezoelectric coefficient d33, electromechanical coupling factor kp and electric field induced strain S were improved by BaTiO3 incorporation, reaching maximum of 342 pC/N, 0.45 and 0.142% at 3 mol%, respectively.