書誌事項
- タイトル別名
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- Fabrication of High Density Soft Magnetic Fe-3mass%Si/ferrite Composites with a High Saturation Magnetization Density of 1.5 T
- ホウワジソク ミツド 1.5T オ ユウスル コウミツドナンジセイ Fe-3mass%Si/フェライトコンポジット ノ サクセイ
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<p>Dense [Fe-3mass%Si]/[(Ni-Mn-Zn) and (Mn-Zn) ferrites] composites have been fabricated by pulsed electric-current pressure sintering (PECPS), aiming at high saturation magnetization density Bs and high electrical resistivity ρ, which are required for many applications used under high frequency electro-magnetic field. To suppress the mutual diffusion between metal and oxides, the former had been coated with Ni (0.1 µm in thickness) as the protection film. And to avoid the brittle failure of oxide film formed on metal particles during compacting, two kinds of mixtures consisting of fine “(MnO2 or MnO, NiO, ZnO, α-Fe2O3)” and” (MnO2, ZnO, α-Fe2O3)” powders were adopted to synthesize both Ni0.25Mn0.25Zn0.5Fe2O4 and Mn0.577Zn0.316Fe2.071O4 ferrites, respectively. The former ferrite was selected for better affinity to Ni film and relatively high ρ, and the latter for nearly zero magnetostriction constant λs and crystalline magnetic anisotropy constant KI to attain high μ even under stress. Furthermore, by appropriating MnO for Ni-Mn-Zn ferrite source and utilizing high pressure powder compacting and PECPS, under 1 GPa and 200 MPa, respectively, dense metal/hybrid ferrite (core: Ni-Mn-Zn, intermediate: Mn-Zn ferrites) composites revealed Bs of 1.50 T and permeability µ around 45 at 1 kHz and 20 at 5 MHz.</p>
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 68 (9), 356-366, 2021-09-15
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
- 1390852337054871936
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- NII論文ID
- 130008088002
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- NII書誌ID
- AN00222724
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- ISSN
- 18809014
- 05328799
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- NDL書誌ID
- 031725335
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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
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- 使用不可