The Experts below are selected from a list of 282 Experts worldwide ranked by ideXlab platform
Yuichi Ikuhara - One of the best experts on this subject based on the ideXlab platform.
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Atomistic study of abnormal grain growth structure in BaTiO3 by Transmission Electron Microscopy and scanning Transmission Electron Microscopy
Acta Materialia, 2013Co-Authors: Shijian Zheng, Xiuliang Ma, Takahisa Yamamoto, Yuichi IkuharaAbstract:Abstract An accurate understanding of the atomistic structure of interfaces is crucial to explain the mechanism of abnormal grain growth (AGG) in polycrystalline materials. In this work we investigated the atomistic structure of interfaces in a Ti excess BaTiO3 by Transmission Electron Microscopy (TEM) and Cs-corrected scanning Transmission Electron Microscopy (STEM). After sintering at 1300 °C in air, the Ti excess BaTiO3 shows typical AGG morphology with {1 1 1} twin lamellae and {1 1 1} faceted grain boundaries. A sub-nanometer Ti-rich intergranular phase and a second phase, Ba4Ti10Al2O27, at the {1 1 1} faceted grain boundaries were indentified. The intergranular phase and the Ba4Ti10Al2O27 exhibit epitaxial relationships with BaTiO3 in stacking sequences of {1 1 1} BaTiO3/intergranular phase/(1 0 0) Ba4Ti10Al2O27 and {1 1 1} BaTiO3/(1 0 0) Ba4Ti10Al2O27. Additionally, two orientation relationships were identified, [1 1 0] BaTiO3 // [0 1 ¯ 0] Ba4Ti10Al2O27 and [1 1 0] BaTiO3 // [0 1 0] Ba4Ti10Al2O27. The intergranular phase and Ba4Ti10Al2O27 are also shown to exhibit strong structural similarities. Effects of the interfaces on AGG are proposed.
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Transmission Electron Microscopy and scanning Transmission Electron Microscopy study on b site cation ordered structures in a 1 x pb mg1 3nb2 3 o3 xpbtio3 single crystal
Applied Physics Letters, 2009Co-Authors: Yukio Sato, Hiroki Moriwake, Tsukasa Hirayama, Teruyasu Mizoguchi, Naoya Shibata, Yuichi IkuharaAbstract:Transmission Electron Microscopy and scanning Transmission Electron Microscopy were performed to investigate B-site cation-ordered structures in a (1−x)Pb(Mg1/3Nb2/3)O3–xPbTiO3 (x∼0.30) single crystal. Selected-area diffraction patterns showed presence of F-spots corresponding to 1:1 order. Besides, the F-spots were elongated to be “X”-like in shape. Transmission Electron Microscopy dark-field images revealed that size of ordered domains was about a few nanometers, and they were dispersed within disordered matrix. Scanning Transmission Electron Microscopy indicated the presence of 1:1 ordered domains. Presence of 1:2 ordered structures was also indicated. These are consistent with features of the selected-area diffraction patterns.
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Transmission Electron Microscopy and scanning Transmission Electron Microscopy study on B-site cation ordered structures in a (1−x)Pb(Mg1/3Nb2/3)O3–xPbTiO3 single crystal
Applied Physics Letters, 2009Co-Authors: Yukio Sato, Hiroki Moriwake, Tsukasa Hirayama, Teruyasu Mizoguchi, Naoya Shibata, Yuichi IkuharaAbstract:Transmission Electron Microscopy and scanning Transmission Electron Microscopy were performed to investigate B-site cation-ordered structures in a (1−x)Pb(Mg1/3Nb2/3)O3–xPbTiO3 (x∼0.30) single crystal. Selected-area diffraction patterns showed presence of F-spots corresponding to 1:1 order. Besides, the F-spots were elongated to be “X”-like in shape. Transmission Electron Microscopy dark-field images revealed that size of ordered domains was about a few nanometers, and they were dispersed within disordered matrix. Scanning Transmission Electron Microscopy indicated the presence of 1:1 ordered domains. Presence of 1:2 ordered structures was also indicated. These are consistent with features of the selected-area diffraction patterns.
Yukio Sato - One of the best experts on this subject based on the ideXlab platform.
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Transmission Electron Microscopy and scanning Transmission Electron Microscopy study on b site cation ordered structures in a 1 x pb mg1 3nb2 3 o3 xpbtio3 single crystal
Applied Physics Letters, 2009Co-Authors: Yukio Sato, Hiroki Moriwake, Tsukasa Hirayama, Teruyasu Mizoguchi, Naoya Shibata, Yuichi IkuharaAbstract:Transmission Electron Microscopy and scanning Transmission Electron Microscopy were performed to investigate B-site cation-ordered structures in a (1−x)Pb(Mg1/3Nb2/3)O3–xPbTiO3 (x∼0.30) single crystal. Selected-area diffraction patterns showed presence of F-spots corresponding to 1:1 order. Besides, the F-spots were elongated to be “X”-like in shape. Transmission Electron Microscopy dark-field images revealed that size of ordered domains was about a few nanometers, and they were dispersed within disordered matrix. Scanning Transmission Electron Microscopy indicated the presence of 1:1 ordered domains. Presence of 1:2 ordered structures was also indicated. These are consistent with features of the selected-area diffraction patterns.
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Transmission Electron Microscopy and scanning Transmission Electron Microscopy study on B-site cation ordered structures in a (1−x)Pb(Mg1/3Nb2/3)O3–xPbTiO3 single crystal
Applied Physics Letters, 2009Co-Authors: Yukio Sato, Hiroki Moriwake, Tsukasa Hirayama, Teruyasu Mizoguchi, Naoya Shibata, Yuichi IkuharaAbstract:Transmission Electron Microscopy and scanning Transmission Electron Microscopy were performed to investigate B-site cation-ordered structures in a (1−x)Pb(Mg1/3Nb2/3)O3–xPbTiO3 (x∼0.30) single crystal. Selected-area diffraction patterns showed presence of F-spots corresponding to 1:1 order. Besides, the F-spots were elongated to be “X”-like in shape. Transmission Electron Microscopy dark-field images revealed that size of ordered domains was about a few nanometers, and they were dispersed within disordered matrix. Scanning Transmission Electron Microscopy indicated the presence of 1:1 ordered domains. Presence of 1:2 ordered structures was also indicated. These are consistent with features of the selected-area diffraction patterns.
Hiroki Moriwake - One of the best experts on this subject based on the ideXlab platform.
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Transmission Electron Microscopy and scanning Transmission Electron Microscopy study on b site cation ordered structures in a 1 x pb mg1 3nb2 3 o3 xpbtio3 single crystal
Applied Physics Letters, 2009Co-Authors: Yukio Sato, Hiroki Moriwake, Tsukasa Hirayama, Teruyasu Mizoguchi, Naoya Shibata, Yuichi IkuharaAbstract:Transmission Electron Microscopy and scanning Transmission Electron Microscopy were performed to investigate B-site cation-ordered structures in a (1−x)Pb(Mg1/3Nb2/3)O3–xPbTiO3 (x∼0.30) single crystal. Selected-area diffraction patterns showed presence of F-spots corresponding to 1:1 order. Besides, the F-spots were elongated to be “X”-like in shape. Transmission Electron Microscopy dark-field images revealed that size of ordered domains was about a few nanometers, and they were dispersed within disordered matrix. Scanning Transmission Electron Microscopy indicated the presence of 1:1 ordered domains. Presence of 1:2 ordered structures was also indicated. These are consistent with features of the selected-area diffraction patterns.
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Transmission Electron Microscopy and scanning Transmission Electron Microscopy study on B-site cation ordered structures in a (1−x)Pb(Mg1/3Nb2/3)O3–xPbTiO3 single crystal
Applied Physics Letters, 2009Co-Authors: Yukio Sato, Hiroki Moriwake, Tsukasa Hirayama, Teruyasu Mizoguchi, Naoya Shibata, Yuichi IkuharaAbstract:Transmission Electron Microscopy and scanning Transmission Electron Microscopy were performed to investigate B-site cation-ordered structures in a (1−x)Pb(Mg1/3Nb2/3)O3–xPbTiO3 (x∼0.30) single crystal. Selected-area diffraction patterns showed presence of F-spots corresponding to 1:1 order. Besides, the F-spots were elongated to be “X”-like in shape. Transmission Electron Microscopy dark-field images revealed that size of ordered domains was about a few nanometers, and they were dispersed within disordered matrix. Scanning Transmission Electron Microscopy indicated the presence of 1:1 ordered domains. Presence of 1:2 ordered structures was also indicated. These are consistent with features of the selected-area diffraction patterns.
Naoya Shibata - One of the best experts on this subject based on the ideXlab platform.
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Transmission Electron Microscopy and scanning Transmission Electron Microscopy study on b site cation ordered structures in a 1 x pb mg1 3nb2 3 o3 xpbtio3 single crystal
Applied Physics Letters, 2009Co-Authors: Yukio Sato, Hiroki Moriwake, Tsukasa Hirayama, Teruyasu Mizoguchi, Naoya Shibata, Yuichi IkuharaAbstract:Transmission Electron Microscopy and scanning Transmission Electron Microscopy were performed to investigate B-site cation-ordered structures in a (1−x)Pb(Mg1/3Nb2/3)O3–xPbTiO3 (x∼0.30) single crystal. Selected-area diffraction patterns showed presence of F-spots corresponding to 1:1 order. Besides, the F-spots were elongated to be “X”-like in shape. Transmission Electron Microscopy dark-field images revealed that size of ordered domains was about a few nanometers, and they were dispersed within disordered matrix. Scanning Transmission Electron Microscopy indicated the presence of 1:1 ordered domains. Presence of 1:2 ordered structures was also indicated. These are consistent with features of the selected-area diffraction patterns.
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Transmission Electron Microscopy and scanning Transmission Electron Microscopy study on B-site cation ordered structures in a (1−x)Pb(Mg1/3Nb2/3)O3–xPbTiO3 single crystal
Applied Physics Letters, 2009Co-Authors: Yukio Sato, Hiroki Moriwake, Tsukasa Hirayama, Teruyasu Mizoguchi, Naoya Shibata, Yuichi IkuharaAbstract:Transmission Electron Microscopy and scanning Transmission Electron Microscopy were performed to investigate B-site cation-ordered structures in a (1−x)Pb(Mg1/3Nb2/3)O3–xPbTiO3 (x∼0.30) single crystal. Selected-area diffraction patterns showed presence of F-spots corresponding to 1:1 order. Besides, the F-spots were elongated to be “X”-like in shape. Transmission Electron Microscopy dark-field images revealed that size of ordered domains was about a few nanometers, and they were dispersed within disordered matrix. Scanning Transmission Electron Microscopy indicated the presence of 1:1 ordered domains. Presence of 1:2 ordered structures was also indicated. These are consistent with features of the selected-area diffraction patterns.
Tsukasa Hirayama - One of the best experts on this subject based on the ideXlab platform.
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Transmission Electron Microscopy and scanning Transmission Electron Microscopy study on b site cation ordered structures in a 1 x pb mg1 3nb2 3 o3 xpbtio3 single crystal
Applied Physics Letters, 2009Co-Authors: Yukio Sato, Hiroki Moriwake, Tsukasa Hirayama, Teruyasu Mizoguchi, Naoya Shibata, Yuichi IkuharaAbstract:Transmission Electron Microscopy and scanning Transmission Electron Microscopy were performed to investigate B-site cation-ordered structures in a (1−x)Pb(Mg1/3Nb2/3)O3–xPbTiO3 (x∼0.30) single crystal. Selected-area diffraction patterns showed presence of F-spots corresponding to 1:1 order. Besides, the F-spots were elongated to be “X”-like in shape. Transmission Electron Microscopy dark-field images revealed that size of ordered domains was about a few nanometers, and they were dispersed within disordered matrix. Scanning Transmission Electron Microscopy indicated the presence of 1:1 ordered domains. Presence of 1:2 ordered structures was also indicated. These are consistent with features of the selected-area diffraction patterns.
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Transmission Electron Microscopy and scanning Transmission Electron Microscopy study on B-site cation ordered structures in a (1−x)Pb(Mg1/3Nb2/3)O3–xPbTiO3 single crystal
Applied Physics Letters, 2009Co-Authors: Yukio Sato, Hiroki Moriwake, Tsukasa Hirayama, Teruyasu Mizoguchi, Naoya Shibata, Yuichi IkuharaAbstract:Transmission Electron Microscopy and scanning Transmission Electron Microscopy were performed to investigate B-site cation-ordered structures in a (1−x)Pb(Mg1/3Nb2/3)O3–xPbTiO3 (x∼0.30) single crystal. Selected-area diffraction patterns showed presence of F-spots corresponding to 1:1 order. Besides, the F-spots were elongated to be “X”-like in shape. Transmission Electron Microscopy dark-field images revealed that size of ordered domains was about a few nanometers, and they were dispersed within disordered matrix. Scanning Transmission Electron Microscopy indicated the presence of 1:1 ordered domains. Presence of 1:2 ordered structures was also indicated. These are consistent with features of the selected-area diffraction patterns.
