書誌事項
- タイトル別名
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- Magnetic Properties of Crystal Oriented Ni-Zn Ferrites for High Frequency.
- ハイコウセイ Ni Zn フェライト ノ コウシュウハ ジキ トクセイ
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説明
Acicular Ni0.4Zn0.6Fe2O4 fine particles were made from acicular a-FeOOH, Ni(C5H7O2)2 and Zn(C5H7O2)2 by calcining at 750-950°C for 4 hours. The saturation magnetization and the aspect ratio of the obtained particles were 50 emu/g and 26, respectively. These particles were pressed in a die into a troidal shape. In the pressing process, they were grain-oriented by multi-layer formation or magnetic field application so that their <111> direction in the spinel structure could be aligned perpendicular to the top surface of the troidal core. In addition, the randomly oriented sample was also prepared as a reference. These pressed compacts were sintered at 1200-1300°C for 6h. The initial permeability of the grain-oriented samples were larger than that of the randomly oriented sample. Moreover, the frequency dependence of reflection loss in these grain-oriented samples were improved.
収録刊行物
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- 粉体および粉末冶金
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粉体および粉末冶金 49 (8), 671-676, 2002
一般社団法人 粉体粉末冶金協会
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詳細情報 詳細情報について
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- CRID
- 1390001206309121536
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- NII論文ID
- 10009579748
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- NII書誌ID
- AN00222724
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- ISSN
- 18809014
- 05328799
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- NDL書誌ID
- 6273404
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDLサーチ
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可
