アルミニウム微粒子をポリスチレンに分散した複合電磁波吸収体の作製と評価 Preparation and Evaluation of Composite Electromagnetic Wave Absorbers Made of Aluminum Fine Particles Dispersed in Polystyrene Medium

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We developed composite electromagnetic wave absorbers dispersed aluminum fine particles in polystyrene medium and evaluated those properties in order to realize single layer electromagnetic wave absorbers with the good absorption property in the GHz region. Polystyrene particles with two kind of diameters (approximately 200 μm or 1 μm) and aluminum fine particles were mixed by mechanical milling. Mixture was heated above the melting point of polystyrene and then cooled naturally in the air. The frequency characteristics of the complex relative permeability, the complex relative permittivity were calculated from values of the scattering parameters of the coaxial line loaded with a sample of a toroidal-core shape. Both the magnetization and the magnetic loss increased proportional to the volume mixing ratio of aluminum particles up to approximately 34 vol% for samples made of polystyrene particles with approximately 200 μm or 1 μm diameter. The diamagnetism was almost frequency independent and the magnetic loss decreased with increasing frequency for all samples. These results were in agreement with qualitative theoretical prediction.

収録刊行物

  • 電気学会論文誌. A, 基礎・材料・共通部門誌 = The transactions of the Institute of Electrical Engineers of Japan. A, A publication of Fundamentals and Materials Society  

    電気学会論文誌. A, 基礎・材料・共通部門誌 = The transactions of the Institute of Electrical Engineers of Japan. A, A publication of Fundamentals and Materials Society 128(4), 242-250, 2008-04-01 

    The Institute of Electrical Engineers of Japan

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各種コード

  • NII論文ID(NAID)
    10021129656
  • NII書誌ID(NCID)
    AN10136312
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    03854205
  • NDL 記事登録ID
    9451896
  • NDL 雑誌分類
    ZN31(科学技術--電気工学・電気機械工業)
  • NDL 請求記号
    Z16-793
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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