The Experts below are selected from a list of 300 Experts worldwide ranked by ideXlab platform
Alexander L. Roytburd - One of the best experts on this subject based on the ideXlab platform.
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Theoretical investigation of the intrinsic Piezoelectric properties for tetragonal BaTiO3 epitaxial films
Applied Surface Science, 2006Co-Authors: Jun Ouyang, Ramamoorthy Ramesh, Alexander L. RoytburdAbstract:Abstract The orientation dependences of the converse longitudinal Piezoelectric Constant d33,f, and the in-plane converse Piezoelectric Constant e31,f, are calculated for tetragonal barium titanate epitaxial films. The calculations demonstrate that both e31,f and d33,f have their maximum values along an axis close to the (1 1 1) direction of the pseudo-cubic system, which are similar to the orientation dependence results for a tetragonal BaTiO3 single crystal. The calculated Piezoelectric Constants for a (1 1 1) oriented BaTiO3 epitaxial film (e31,f = −23 C/m2, d33,f = 124 pm/V) suggest that it is a good candidate material for lead-free MEMS applications.
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orientation dependence of the intrinsic converse longitudinal Piezoelectric Constant for 0 67pb mg1 3nb2 3 o3 0 33pbtio3 ferroelectric films with a rhombohedral structure
Smart Materials and Structures, 2005Co-Authors: Jun Ouyang, D. M. Kim, Chang-beom Eom, R Ramesh, Alexander L. RoytburdAbstract:The general orientation dependence of the intrinsic converse longitudinal Piezoelectric Constant dnnf in an epitaxial rhombohedral film is calculated by taking into account the effect of substrate clamping. Theoretical predictions are made for dnnf of epitaxial 0.67Pb(Mg1/3Nb2/3)O3–0.33PbTiO3 rhombohedral films, which are compared with experimental results on pseudo-cubic (001), (110) and (111) orientations.
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Orientation dependence of the intrinsic converse longitudinal Piezoelectric Constant for 0.67Pb(Mg1/3Nb2/3)O3–0.33PbTiO3 ferroelectric films with a rhombohedral structure
Smart Materials and Structures, 2005Co-Authors: Jun Ouyang, Ramamoorthy Ramesh, D. M. Kim, Chang-beom Eom, Alexander L. RoytburdAbstract:The general orientation dependence of the intrinsic converse longitudinal Piezoelectric Constant dnnf in an epitaxial rhombohedral film is calculated by taking into account the effect of substrate clamping. Theoretical predictions are made for dnnf of epitaxial 0.67Pb(Mg1/3Nb2/3)O3–0.33PbTiO3 rhombohedral films, which are compared with experimental results on pseudo-cubic (001), (110) and (111) orientations.
Fei Liang - One of the best experts on this subject based on the ideXlab platform.
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morphotropic phase boundary and Piezoelectric properties of bi1 2na1 2 tio3 bi1 2k1 2 tio3 knbo3 lead free Piezoelectric ceramics
Applied Physics Letters, 2007Co-Authors: Wenzhong Lu, Xiaohong Wang, Fei LiangAbstract:The crystal structure and Piezoelectric properties of ternary ceramics x(Bi1∕2Na1∕2)TiO3–y(Bi1∕2K1∕2)TiO3–zKNbO3 (abbreviated as BNT-BKT-KN100x∕100y∕100z) system have been investigated. Effects of BKT and KN on the crystalline structure were examined. The morphotropic phase boundary (MPB) phase diagram of BNT-BKT-KN ternary system was determined by x-ray diffraction patterns from sintered specimens. Near the MPB, BNT-BKT-KN82∕16∕2 ceramics had good performances with Piezoelectric Constant d33=215pC∕N which reached a maximum value in this ternary system and planar electromechanical coupling factor kp=35%. Besides, BNT-BKT-KN87∕10∕3 ceramics had good performances with Piezoelectric Constant d33=138pC∕N and electromechanical coupling factor kp=38% which attained a maximum value in this ternary system.
Haosu Luo - One of the best experts on this subject based on the ideXlab platform.
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composition dependence of Piezoelectric Constant and dielectric Constant tunability in the 001 oriented pb mg1 3nb2 3 o3 pbtio3 single crystals
Materials Letters, 2004Co-Authors: Xiangyong Zhao, Jie Wang, Khian-hooi Chew, Helen Lai Wa Chan, Chung-loong Choy, Zhiwen Yin, Haosu LuoAbstract:Composition dependence of room temperature Piezoelectric Constant d33 and dielectric Constant tunability was investigated in the 〈001〉-poled single crystals of (1−x)Pb(Mg1/3Nb2/3)O3–xPbTiO3 with x varying from 0.24 to 0.38. Temperature, frequency and composition dependence of the dielectric Constant in the unpoled crystals shows that the critical composition for the relaxor state lies in the 0.69Pb(Mg1/3Nb2/3)O3–0.31PbTiO3 crystal. It has also the largest Piezoelectric Constant d33 of 2210 pC/N and highest dielectric Constant tunability of 40.6% (at a dc bias of 1000 V/mm). The experiment results validate the prediction that the relaxor-based materials with the critical composition for the relaxor state will have the highest Piezoelectric susceptibility.
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Composition dependence of Piezoelectric Constant and dielectric Constant tunability in the 〈001〉-oriented Pb(Mg1/3Nb2/3)O3–PbTiO3 single crystals
Materials Letters, 2004Co-Authors: Xiangyong Zhao, Jie Wang, Khian-hooi Chew, Helen Lai Wa Chan, Chung-loong Choy, Zhiwen Yin, Haosu LuoAbstract:Composition dependence of room temperature Piezoelectric Constant d33 and dielectric Constant tunability was investigated in the 〈001〉-poled single crystals of (1−x)Pb(Mg1/3Nb2/3)O3–xPbTiO3 with x varying from 0.24 to 0.38. Temperature, frequency and composition dependence of the dielectric Constant in the unpoled crystals shows that the critical composition for the relaxor state lies in the 0.69Pb(Mg1/3Nb2/3)O3–0.31PbTiO3 crystal. It has also the largest Piezoelectric Constant d33 of 2210 pC/N and highest dielectric Constant tunability of 40.6% (at a dc bias of 1000 V/mm). The experiment results validate the prediction that the relaxor-based materials with the critical composition for the relaxor state will have the highest Piezoelectric susceptibility.
Xiangyong Zhao - One of the best experts on this subject based on the ideXlab platform.
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composition dependence of Piezoelectric Constant and dielectric Constant tunability in the 001 oriented pb mg1 3nb2 3 o3 pbtio3 single crystals
Materials Letters, 2004Co-Authors: Xiangyong Zhao, Jie Wang, Khian-hooi Chew, Helen Lai Wa Chan, Chung-loong Choy, Zhiwen Yin, Haosu LuoAbstract:Composition dependence of room temperature Piezoelectric Constant d33 and dielectric Constant tunability was investigated in the 〈001〉-poled single crystals of (1−x)Pb(Mg1/3Nb2/3)O3–xPbTiO3 with x varying from 0.24 to 0.38. Temperature, frequency and composition dependence of the dielectric Constant in the unpoled crystals shows that the critical composition for the relaxor state lies in the 0.69Pb(Mg1/3Nb2/3)O3–0.31PbTiO3 crystal. It has also the largest Piezoelectric Constant d33 of 2210 pC/N and highest dielectric Constant tunability of 40.6% (at a dc bias of 1000 V/mm). The experiment results validate the prediction that the relaxor-based materials with the critical composition for the relaxor state will have the highest Piezoelectric susceptibility.
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Composition dependence of Piezoelectric Constant and dielectric Constant tunability in the 〈001〉-oriented Pb(Mg1/3Nb2/3)O3–PbTiO3 single crystals
Materials Letters, 2004Co-Authors: Xiangyong Zhao, Jie Wang, Khian-hooi Chew, Helen Lai Wa Chan, Chung-loong Choy, Zhiwen Yin, Haosu LuoAbstract:Composition dependence of room temperature Piezoelectric Constant d33 and dielectric Constant tunability was investigated in the 〈001〉-poled single crystals of (1−x)Pb(Mg1/3Nb2/3)O3–xPbTiO3 with x varying from 0.24 to 0.38. Temperature, frequency and composition dependence of the dielectric Constant in the unpoled crystals shows that the critical composition for the relaxor state lies in the 0.69Pb(Mg1/3Nb2/3)O3–0.31PbTiO3 crystal. It has also the largest Piezoelectric Constant d33 of 2210 pC/N and highest dielectric Constant tunability of 40.6% (at a dc bias of 1000 V/mm). The experiment results validate the prediction that the relaxor-based materials with the critical composition for the relaxor state will have the highest Piezoelectric susceptibility.
Jun Ouyang - One of the best experts on this subject based on the ideXlab platform.
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Theoretical investigation of the intrinsic Piezoelectric properties for tetragonal BaTiO3 epitaxial films
Applied Surface Science, 2006Co-Authors: Jun Ouyang, Ramamoorthy Ramesh, Alexander L. RoytburdAbstract:Abstract The orientation dependences of the converse longitudinal Piezoelectric Constant d33,f, and the in-plane converse Piezoelectric Constant e31,f, are calculated for tetragonal barium titanate epitaxial films. The calculations demonstrate that both e31,f and d33,f have their maximum values along an axis close to the (1 1 1) direction of the pseudo-cubic system, which are similar to the orientation dependence results for a tetragonal BaTiO3 single crystal. The calculated Piezoelectric Constants for a (1 1 1) oriented BaTiO3 epitaxial film (e31,f = −23 C/m2, d33,f = 124 pm/V) suggest that it is a good candidate material for lead-free MEMS applications.
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orientation dependence of the intrinsic converse longitudinal Piezoelectric Constant for 0 67pb mg1 3nb2 3 o3 0 33pbtio3 ferroelectric films with a rhombohedral structure
Smart Materials and Structures, 2005Co-Authors: Jun Ouyang, D. M. Kim, Chang-beom Eom, R Ramesh, Alexander L. RoytburdAbstract:The general orientation dependence of the intrinsic converse longitudinal Piezoelectric Constant dnnf in an epitaxial rhombohedral film is calculated by taking into account the effect of substrate clamping. Theoretical predictions are made for dnnf of epitaxial 0.67Pb(Mg1/3Nb2/3)O3–0.33PbTiO3 rhombohedral films, which are compared with experimental results on pseudo-cubic (001), (110) and (111) orientations.
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Orientation dependence of the intrinsic converse longitudinal Piezoelectric Constant for 0.67Pb(Mg1/3Nb2/3)O3–0.33PbTiO3 ferroelectric films with a rhombohedral structure
Smart Materials and Structures, 2005Co-Authors: Jun Ouyang, Ramamoorthy Ramesh, D. M. Kim, Chang-beom Eom, Alexander L. RoytburdAbstract:The general orientation dependence of the intrinsic converse longitudinal Piezoelectric Constant dnnf in an epitaxial rhombohedral film is calculated by taking into account the effect of substrate clamping. Theoretical predictions are made for dnnf of epitaxial 0.67Pb(Mg1/3Nb2/3)O3–0.33PbTiO3 rhombohedral films, which are compared with experimental results on pseudo-cubic (001), (110) and (111) orientations.