- Effect of Annealing Temperature on the Electromagnetic Wave Absorbing Properties of Nanocrystalline Soft-magnetic Alloy Powder
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S.H. Hong, K.Y. Sohn, W.W. Park, B.G. Moon, Y.S. Song
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J Korean Powder Metall Inst. 2008;15(1):18-22.
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DOI: https://doi.org/10.4150/KPMI.2008.15.1.018
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- The electromagnetic (EM) wave absorption properties with a variation of crystallization annealing temperature have been investigated in a sheet-type absorber using the Fe_73Si_16B_7Nb_3Cu_1 alloy powder. With increasing the annealing temperature the complex permeability (µ_r), permittivity (varepsilon_r) and power absorption changed. The EM wave absorber shows the maximum permeability and permittivity after the annealing at 610°C for 1 hour, and its calculated power absorption is above 80% of input power in the frequency range over 1.5 GHz.
- Study of Electromagnetic Wave Absorption Properties with Particle Size in Soft Magnetic Alloy Powder
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S.H. Hong, K.Y. Sohn, W.W. Park, J.M. Nam, B.G. Moon, Y.S. Song
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J Korean Powder Metall Inst. 2007;14(4):261-264.
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DOI: https://doi.org/10.4150/KPMI.2007.14.4.261
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Abstract
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- The electromagnetic wave (EM) absorption properties of various particle size have been investigated in a sheet-type absorber using the Fe_73Si_16B_7Nb_3Cu_1 alloy powder. With decreasing the average particle size, the complex permeability (µ_r) and permittivity (varepsilon_r) increased and the matching frequency is shifted toward lower frequency. The fabricated EM wave absorbers showed permeability 2sim6, permittivity 17sim23 for a -325sim+400 mesh sample, and the calculated power absorption was as high as 80% in the frequency range over 2 GHz.
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Citations
Citations to this article as recorded by  - Influence of Coating Agent and Particle Size on the Soft Magnetic Properties of Fe Based Nano Crystalline Alloy Powder Core
S.J. Jang, Y.J. Choi, S.W. Kim, B.S. Jeon, T.H. Lee, C.B. Song, J. Namkung
Journal of the Korean Magnetics Society.2015; 25(3): 67. CrossRef - Electromagnetic Wave Absorption Properties of Fe73Si16B7Nb3Cu1-Based Nanocrystalline Soft Magnetic Powder Composite Mixed with Charcoal Powder
Sun-I Kim, Mi-Rae Kim, Keun-Yong Sohn, Won-Wook Park
Journal of Korean Powder Metallurgy Institute.2009; 16(4): 291. CrossRef - Electromagnetic Wave Shielding Effect of Nano-powder Dispersed Epoxy Resin Composite
Jun-Young Han, Chul-Hee Lee, Min-Gyu Choi, Soon-Jik Hong, Joong-Hark Park, Dong-Jin Lee
journal of Korean Powder Metallurgy Institute.1970; 22(4): 234. CrossRef
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