Study of the morphotropic phase boundary in the lead-free Na_<1/2>Bi_<1/2>TiO_3-BaTiO_3 system by Raman spectroscopy
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概要
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Lead-free piezoelectric (100-x)Na1/2Bi1/2TiO3-xBaTiO3 solid solution ceramics are investigated by Raman spectroscopy and X-ray diffraction over a composition range of 0 ≤ x ≤ 10. Distinct changes in the Raman spectra and X-ray diffraction patterns were discussed in the light of a rhombohedral to tetragonal phase transition. The dominant bands in the Raman spectra were analyzed by observing the changes in their respective peak positions, widths and intensities as the composition increased. Based on these results, it is suggested that the morphotropic phase boundary in the studied system lies at the composition of x ≈ 5.5. This is further evidenced by the X-ray diffraction analysis.
- 公益社団法人 日本セラミックス協会の論文
- 2009-07-01
著者
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Moon Kyoung-seok
Materials Interface Laboratory Department Of Materials Science And Engineering Korea Advanced Instit
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Kang Suk-joong
Materials Interface Laboratory Department Of Materials Science And Engineering Korea Advanced Instit
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ROUT Dibyaranjan
Materials Interface Laboratory, Department of Materials Science and Engineering, Korea Advanced Inst
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RAO V.
Materials Interface Laboratory, Department of Materials Science and Engineering, Korea Advanced Inst
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Rao V.
Materials Interface Laboratory Department Of Materials Science And Engineering Korea Advanced Instit
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Rout Dibyaranjan
Materials Interface Laboratory Department Of Materials Science And Engineering Korea Advanced Instit
関連論文
- Study of the morphotropic phase boundary in the lead-free Na_Bi_TiO_3-BaTiO_3 system by Raman spectroscopy
- Critical Grain Size for Abnormal Grain Growth of BaTiO_3 in Air(Sintering and Microstructure,Guest Editors Dedicated to Prof. Gunter Petzow: Modern Trends in Advanced Ceramics)