One-Directional Grain-Orientation Control of Piezoelectric Ceramics with Tungsten Bronze Structure by Spin-Forming-Extended Method
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概要
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In order to easily fabricate one directional grain-oriented piezoelectric ceramics with the tungsten bronze structure, the modified rolling-extended orientation method (spin-forming-extended method) was employed. By spin-forming a cylindrical claylike green body, needlelike templates were aligned in the length direction of the green body. The repetition number of the spin-forming process, the content of the templates in the green body and the Pb/Ba ratio in (Pb<sub>1-x</sub>Ba<sub>x</sub>)<sub>0.96</sub>La<sub>8/3</sub>Nb<sub>2</sub>O<sub>6</sub> used for the templates and matrix powder were optimized. The rectangular ceramics, which are $c$-axis-oriented in the thickness direction and have a size of 30 mm in the length direction, were consequently obtained.
- 2011-09-25
著者
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Tashiro Shinjiro
Department Of Electrical Engineering The National Defence Academy
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Ishii Keisuke
Department of Chemistry, College of Science and Engineering, Aoyama Gakuin University
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Ishii Keisuke
Department of Materials Science and Engineering, The National Defense Academy, Yokosuka, Kanagawa 239-8686, Japan
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Tashiro Shinjiro
Department of Materials Science and Engineering, The National Defense Academy, Yokosuka, Kanagawa 239-8686, Japan
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