Browse > Article
http://dx.doi.org/10.4313/JKEM.2015.28.12.792

Optimization of Slurry Preparation Process for Soft Magnetic Green Sheet  

Oh, Sea Moon (Advanced Materials Convergence Division, Korea Institute of Ceramic Engineering and Technology)
Lee, Chang Hyun (Advanced Materials Convergence Division, Korea Institute of Ceramic Engineering and Technology)
Shin, Hyo Soon (Advanced Materials Convergence Division, Korea Institute of Ceramic Engineering and Technology)
Yeo, Dong Hun (Advanced Materials Convergence Division, Korea Institute of Ceramic Engineering and Technology)
Kim, Jin Ho (Department of Materials Science and Engineering, Kyungpook National University)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.28, no.12, 2015 , pp. 792-796 More about this Journal
Abstract
With high integration of electronic components, power inductors are also miniaturized. Recently, thick film processes for small size power inductors were developed and commercialized. However, the thick film process to prepare soft magnetic green sheets was not reported enough. In this study, we used Fe-Si magnetic and CIP (carbonyl iron powders) as starting materials to lead to a bimodal particle size distribution in the sheet. We proposed a newly developed 'Modified slurry preparation process' to get well dispersed condition even at high solid contents. Using the new process, it was possible to prepare a well dispersed slurry over 70 vol% of solid. BYK-103 was better than BYK-111 as dispersant in this slurry and the optimum amount was 0.6 wt%. The optimized slurry was formed into a sheet by tape casting process and then the sheet was laminated. We conformed that small size powder, large size powder, and epoxy resin were well dispersed in the green sheet.
Keywords
Magnetic composite; Dispersion; Thick film process;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 I. K. Kang, J. Kor. Mag. Soc., 1, 42 (1991).
2 H. J. Kim, J. Kor. Mag. Soc., 5, 994 (1995)
3 H. J. Kim, J. Kor. Mag. Soc., 21, 77 (2011).   DOI
4 K. S. Lee, Kor. Mag. Soc., Winter Meeting Proceeding, 22 (2006).
5 R. K. Mcgeary, J. Am. Ceram. Soc., 44, 513 (1961).   DOI
6 R. E. Mistler and E. R. Twiname, J. Am. Ceram. Soc., 83, 7 (2000).