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Dielectric, piezoelectric, and electromechanical properties of morphotropic phase boundary compositions in the Pb (Mg1/3 Ta2/3) O3 - PbZrO3 - PbTiO3 ternary system

Journal Article


Abstract


  • Morphotropic phase boundary (MPB) compositions, separating the rhombohedral and tetragonal phases within the Pb (Mg1/3 Ta2/3) O3 - PbZrO3 - PbTiO3 (PMT-PZ-PT) ternary system, were identified using x-ray diffraction and confirmed by their dielectric and piezoelectric properties. Optimal properties were found for the MPB composition of 0.4PMT-0.2PZ-0.4PT, with a dielectric constant ��r and a piezoelectric coefficient (d33) of the order of 4000 and 580 pC/N, respectively. The planar and thickness electromechanical coupling factors were found to be kp =57.2% and kt =44.4%, with a moderate Curie temperature of 175 ��C. Compositions with increasing PMT content (>0.3) exhibited relaxorlike characteristics, showing dispersive dielectric behavior with respect to frequency, indicative of the decay of the macrodomain state to microdomain state. �� 2009 American Institute of Physics.

Publication Date


  • 2009

Citation


  • Hao, H., Zhang, S., Liu, H., & Shrout, T. R. (2009). Dielectric, piezoelectric, and electromechanical properties of morphotropic phase boundary compositions in the Pb (Mg1/3 Ta2/3) O3 - PbZrO3 - PbTiO3 ternary system. Journal of Applied Physics, 105(2). doi:10.1063/1.3065529

Scopus Eid


  • 2-s2.0-59349098830

Volume


  • 105

Issue


  • 2

Place Of Publication


Abstract


  • Morphotropic phase boundary (MPB) compositions, separating the rhombohedral and tetragonal phases within the Pb (Mg1/3 Ta2/3) O3 - PbZrO3 - PbTiO3 (PMT-PZ-PT) ternary system, were identified using x-ray diffraction and confirmed by their dielectric and piezoelectric properties. Optimal properties were found for the MPB composition of 0.4PMT-0.2PZ-0.4PT, with a dielectric constant ��r and a piezoelectric coefficient (d33) of the order of 4000 and 580 pC/N, respectively. The planar and thickness electromechanical coupling factors were found to be kp =57.2% and kt =44.4%, with a moderate Curie temperature of 175 ��C. Compositions with increasing PMT content (>0.3) exhibited relaxorlike characteristics, showing dispersive dielectric behavior with respect to frequency, indicative of the decay of the macrodomain state to microdomain state. �� 2009 American Institute of Physics.

Publication Date


  • 2009

Citation


  • Hao, H., Zhang, S., Liu, H., & Shrout, T. R. (2009). Dielectric, piezoelectric, and electromechanical properties of morphotropic phase boundary compositions in the Pb (Mg1/3 Ta2/3) O3 - PbZrO3 - PbTiO3 ternary system. Journal of Applied Physics, 105(2). doi:10.1063/1.3065529

Scopus Eid


  • 2-s2.0-59349098830

Volume


  • 105

Issue


  • 2

Place Of Publication