軟磁性材料　　電磁波吸収ゴムシートの開発

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タイトル別名
  • Soft Magnetic Materials. Effects of Aspect Ratio of Soft Magnetic Metal Powder on The Properties of Flexible Electromagnetic Wave Absorber Rubber Sheet.
  • 電磁波吸収ゴムシートの開発
  • デンジハ キュウシュウ ゴム シート ノ カイハツ

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抄録

A flexible electromagnetic wave absorber (Dual Phase Rubber sheet) has been developed for the quasi-microwave band (1-3GHz). The absorber consists of the electromagnetic stainless steel flaky powders and chorinated polyethylene rubber. The absorber can thus contain a large volume (up to 60 vol%) of the metal powders, and as a result it shows high permeability and permittivity(10 and 85, respectively, at 1GHz). The results obtained are as follows: (1) The aspect ratio of the metal powder can be increased by longer attrition times . (2) Large permeability of the Dual Phase Rubber sheet is obatined by using magnetic metal flake powder with large aspect rato. (3) The Dual Phase Rubber sheet absorber made of metal flake powder has two magnetic resonances, which are estimated as domain wall resonance and natural resonance respectively. Imaginary part of permeability(μ") of

収録刊行物

  • 電気製鋼

    電気製鋼 69 (3), 195-200, 1998

    大同特殊鋼株式会社

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