Complete set of material constants of Pb(In1∕2Nb1∕2)O3–Pb(Mg1∕3Nb2∕3)O3–PbTiO3single crystal with morphotropic phase boundary composition

AUTOR(ES)

Liu, Xiaozhou

FONTE

American Institute of Physics

RESUMO

Using combined resonance and ultrasonic methods, a full set of material constants has been measured for morphotropic phase boundary (MPB) composition xPb(In1∕2Nb1∕2)O3–(1−x−y)Pb(Mg1∕3Nb2∕3)O3–yPbTiO3 (PIN-PMN-PT) single crystals poled along [001]c. Compared with the MPB composition (1−x)Pb(Mg1∕3Nb2∕3)O3–xPbTiO3 (PMN-PT) single crystals, the PIN-PMN-PT single crystals have smaller anisotropy, higher Curie temperature (Tc≈197 °C), and higher rhombohedral to tetragonal phase transition temperature (TR-T≈96 °C). The electromechanical properties obtained here are the best found so far for this ternary system with d33≈2742 pC∕N, d31≈−1337 pC∕N, k33≈95%, and k31≈65%.

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