Publisher : The Korean Microelectronics and Packaging Society
DOI : 10.6117/kmeps.2016.23.2.011
Title & Authors
Manufacturing Technology for Tape Casting and Soft Magnetic Powder Using by Recycling Scrap of Fe-Si Electrical Sheet Hong, Won Sik; Kim, Sang Hyun; Park, Ji-Yeon; Oh, Chulmin; Lee, Woo Sung; Kim, Seung Gyeom; Han, Sang Jo; Shim, Geum Taek; Kim, Hwi-Jun;
This study focused on examining the possibility for recycling of Fe-Si electric sheet. We manufactured Fe-6.5Si mother alloy using by Fe-Si electric sheet scrap for transformer core materials. And then, soft magnetic alloy powder which diameter and shape were and sphere type was prepared by gas atomization process. As we compared to commercial Fe-6.5Si powder, its diameter distribution and microstructure of recycled powder was a similar. To investigate the possibility of reusing the soft magnetic composite sheet for electronics, recycled powder was treated to have a high aspect ratio (AR), and we finally obtained the 65~66 AR and thickness powder. To release the residual stress of powder, heat treatment was conducted under , gas. And then, soft magnetic sheet was made by tape casting process using by those powders. After the density and permeability of tape was measured, and we confirmed that the recycled Fe-Si electric sheet scrap was possible to reuse the soft magnetic materials of electronics.
I. W. Suh, H. S. Jung, Y.-H. Lee, Y. H. Kim and S. H. Choa, "Heat Dissipation Technology of IGBT Module Package, J. Microelectron. Packag. Soc., 21(3), 7 (2014).
H. S. Jung, "Potential Value Evaluation of The Rare Metal in Urban mine", Issue paper, Samsung Economic Research Institute (2011).
J. P. Hong, J. Huh, S. Y. Cha and K. H. ha, "The Electric Equipment and Magnetic Materials", The Transac. Korean Ins. Electric. Eng., 55(9), 45 (2006).
C. J. Yang, "The Tehcnology Development Trend of Magnetic Materials", J. Korean Inst. Electr. Electron. Mater. Eng., 13(11), 1 (2000).
Y. D. Shin and J.-T. Song, "Research Trend and Development of Hard Magnetic Materials", J. Korean Inst. Electr. Electron. Mater. Eng., 9(1), 93 (1996).
P.-K. Choi, "Strategic Elements Project of Japan", J. Korean Magnetics Soc., 24(6), 197 (2014).
Y. Hirayama, Y. K. Takahashi, S. Hirosawa and K. Hono, Scripta Materialia, 95, 70 (2015).
S. Suzuki, T. Kuno, K. Urushibata, K. Kobayashi, N. Sakuma, K. Washio, H. Kishimoto, A. Kato and A. Manabe, AIP Advaces, 4, 117131 (2014).
J. R. Kim, S. G. Cho and K. W. Jeon, "Development of Exchange-coupling Magnets Using Soft/hard Nanoparticles", J. Korean Magnetic. Soc., 21(6), 225 (2011).
E. F. Kneller and R. Hawig, "The exchange-spring magnet: a new material principle for permanent magnets", IEEE Trans. Magn., 27, 3588 (1991).
C.-H. Lee, "Synthesis and characterization of soft magnetic composite in Fe2O3-Mg system by mechanical alloying", J. Korean Crystal Growth and Crystal Technol., 25(6), 245 (2015).
C. C. Koch, O. B. Cavin, C. G. Mckamey and J. O. Scarbrough, "Preparation of amorphous Ni60Nb40 by mechanical alloying", Appl. Phys. Lett., 43, 1017 (1983).
H. J. Fecht, E. Hellstern, Z. Fu and W. L. Johnson, "Nanocrystalline metals prepared by high-energy ball milling", Metal. Trans., 21, 2333 (1990).
J. Eckert and L. Schultz, "Glass formation and extended solubilities in mechanically alloyed cobalt-transition metal alloys", J. Less-Common Metals, 166, 293 (1990).
U. Mizutani and C. H. Lee, "Effect of mechanical alloying beyond the completion of glass formation for Ni-Zr alloy powders", J. Mater. Sci., 25, 399 (1990).
K. Suzuki, Y. Homma, K. Suzuki and M. Misawa, "Structural characterization of Ni-V amorphous alloys prepared by mechanical alloying", Mater. Sci. Eng., A134, 987 (1991).
R. B. Schwarz and W. L. Johnson, "Formation of an amorphous alloy by solid state reaction of the pure polycrystalline metals", Phys. Rev. Lett., 51, 415 (1983).
J. K. Lee, J. H. Yoo, M. J. Yoo and W. S. Lee, "Improving Stability and Characteristic of Circuit and Structure with the Ceramic Process Variable of Dualband Antenna Switch Module", J. Microelectron. Packag. Soc., 12(2), 105 (2005).