Study of Electromagnetic Wave Absorption Properties with Particle Size in Soft Magnetic Alloy Powder

Electronic products are a major part of evolving industry and human life style; however most of them are known to emit electromagnetic waves that have severe health hazards. Therefore, different materials and fabrication techniques are understudy to control or limit transfer of such waves to human body. In this study, nanocomposite powder is dispersed into epoxy resin and shielding effects such as absorption, reflection, penetration and multiple reflections are investigated. In addition, nano size powder (Ni, Fe2O3, Fe-85Ni, C-Ni) is fabricated by pulsed wire evaporation method and dispersed manually into epoxy. Characterization techniques such as X-ray diffraction, Scanning electron microscopy and Transmission electron microscopy are used to investigate the phase analysis, size and shape as well as dispersion trend of a nano powder on epoxy matrix. Shielding effect is measured by standard test method to investigate the electromagnetic shielding effectiveness of planar materials, ASTM D4935. At lower frequency, sample consisting nano-powder of Fe-85%Wt Ni shows better electromagnetic shielding effect compared to only epoxy, only Ni, Fe2O3 and C-Ni samples.

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Influence of Coating Agent and Particle Size on the Soft Magnetic Properties of Fe Based Nano Crystalline Alloy Powder Core

장세종¹,

최영진²,

김상욱³

et al. 2015

Journal of the Korean Magnetics Society

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Study of Electromagnetic Wave Absorption Properties with Particle Size in Soft Magnetic Alloy Powder

Cited by 3 publications

References 2 publications

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Influence of Coating Agent and Particle Size on the Soft Magnetic Properties of Fe Based Nano Crystalline Alloy Powder Core

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Study of Electromagnetic Wave Absorption Properties with Particle Size in Soft Magnetic Alloy Powder

Cited by 3 publications

References 2 publications

Electromagnetic Wave Absorption Properties of Fe73Si16B7Nb3Cu1-Based Nanocrystalline Soft Magnetic Powder Composite Mixed with Charcoal Powder

Electromagnetic Wave Absorption Properties of Fe73Si16B7Nb3Cu1-Based Nanocrystalline Soft Magnetic Powder Composite Mixed with Charcoal Powder

Electromagnetic Wave Shielding Effect of Nano-powder Dispersed Epoxy Resin Composite

Influence of Coating Agent and Particle Size on the Soft Magnetic Properties of Fe Based Nano Crystalline Alloy Powder Core

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Product

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Electromagnetic Wave Absorption Properties of Fe₇₃Si₁₆B₇Nb₃Cu₁-Based Nanocrystalline Soft Magnetic Powder Composite Mixed with Charcoal Powder

Electromagnetic Wave Absorption Properties of Fe₇₃Si₁₆B₇Nb₃Cu₁-Based Nanocrystalline Soft Magnetic Powder Composite Mixed with Charcoal Powder