共沈法によるバリウムフェライト粉末の作製とその磁気特性に及ぼす粒径分布の影響
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概要
- 論文の詳細を見る
Six kinds of powder samples with a different particle size and its distribution have been prepared from coprecipitated precursors by light grinding followed by sieving, and calcined in air to form the barium ferrite (BaFe_<12>O_<19>) phase. Correlation between the particle morphology and Fe/Ba molar ratio or magnetic properties has been examined. The results indicated that the powders consisting of coarse particles (100-200 μm) exhibit a single phase of BaFe_<12>O_<19>, and a higher saturation magnetization and coercivity than the powders having fine particles or a wide size distribution. The optimized powders showed a high coercivity of 5.85 kOe and a saturation magnetization of 71 emu/g that are closed to the theoretical values.
- 社団法人日本セラミックス協会の論文
- 2004-04-01
著者
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間渕 博
大阪府立大学大学院工学研究科
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津田 大
大阪府立大学工学部
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森井 賢二
大阪府立大学工学部
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津田 大
大阪府大
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MAKLED Mahmoud
Department of Physics, Faculty of Science, Zagazig University
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松井 利之
大阪府立大学大学院工学研究科
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El-MANSY Mabrouk
Department of Physics, Faculty of Science, Zagazig University
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Makled Mahmoud
Department Of Physics Faculty Of Science Zagazig University
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El-mansy Mabrouk
Department Of Physics Faculty Of Science Zagazig University
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Mabuchi H
Kanazawa Univ. School Of Medicine Kanazawa Jpn
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松井 利之
National Institute Of Information And Communications Technology
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Makled M.
Department of Physics, Faculty of Science, Zagazig University
-
津田 大
大阪府立大学大学院工学研究科
-
間渕 博
大阪府立大学 工学部
-
松井 利之
大阪府立大学
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