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http://dx.doi.org/10.4283/JKMS.2012.22.6.216

Complex Permeability of 0-3 Polymer Magnetic Composites for Near-Field Communication  

Nam, Joong-Hee (Electronic Materials Convergence Division, Korea Institute of Ceramic Eng. and Tech.)
Lim, Choong Hyuck (Electronic Materials Convergence Division, Korea Institute of Ceramic Eng. and Tech.)
Yun, Ji Sun (Electronic Materials Convergence Division, Korea Institute of Ceramic Eng. and Tech.)
Jeong, Young-Hun (Electronic Materials Convergence Division, Korea Institute of Ceramic Eng. and Tech.)
Cho, Jeong-Ho (Electronic Materials Convergence Division, Korea Institute of Ceramic Eng. and Tech.)
Paik, Jong Hoo (Electronic Materials Convergence Division, Korea Institute of Ceramic Eng. and Tech.)
Kim, Hyo Tae (Basic Materials Convergence Division, Korea Institute of Ceramic Eng. and Tech.)
Kim, Jong-Hee (Basic Materials Convergence Division, Korea Institute of Ceramic Eng. and Tech.)
Abstract
Magnetic properties of composite materials consisting of polymer filled with ferromagnetic powders (MnZn ferrite, Fe-Si alloy) were investigated in this study. The volume fraction of magnetic powders as fillers was varied from 70 % to 95 %. This paper presents the fabrication method of polymer magnetic composites in an effort to produce the 0-3 types of MnZn ferrite and FeSi as fillers with a proper complex permeability through the optimization of some experimental parameters. The polymer matrix composites were prepared by mixing the crushed ferrites and flaky FeSi powders homogenously with low-density resins (EPDM, epoxy). The relationships among the manufacturing technology of these materials, their filler volume fraction, as well as their complex permeability were measured and analyzed.
Keywords
magnetic composites; complex permeability; filler volume fraction; 0-3 composites;
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Times Cited By KSCI : 2  (Citation Analysis)
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