Electromagnetic Interference Shielding Characteristics of Sn-Al Powder Coating Layers

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  • Hung Fei-Shuo
    Department of Architecture, National Cheng Kung University
  • Hung Fei-Yi
    Institute of Nanotechnology and Microsystems Engineering, Center for Micro/Nano Science and Technology, National Cheng Kung University
  • Chiang Che-Ming
    Department of Architecture, National Cheng Kung University
  • Lui Truan-Sheng
    Department of Materials Science and Engineering, National Cheng Kung University

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Abstract

Sn-xAl powder complex materials are used as coating in building materials. This study coats complex colloid mixed with Sn-xAl powders and polyethylene on glass to examine the shield effect on electromagnetic interference (EMI). The results show that adding Al to the Sn-xAl powders can increase the electromagnetic interference (EMI) shield at lower frequencies. Notably, the number of cavities in the coating layer increased with the coating thickness, with the result that the EMI shield could not improve with an increase in the coating thickness at higher frequencies.

Journal

  • MATERIALS TRANSACTIONS

    MATERIALS TRANSACTIONS 49 (3), 655-660, 2008

    The Japan Institute of Metals and Materials

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