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1. (WO2018043963) FE-BASED SOFT MAGNETIC ALLOY AND MAGNETIC PART USING SAME

Pub. No.:    WO/2018/043963    International Application No.:    PCT/KR2017/009005
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Sat Aug 19 01:59:59 CEST 2017
IPC: H01F 1/153
C22C 45/02
C22C 1/00
Applicants: INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY ERICA CAMPUS
한양대학교 에리카산학협력단
AMOGREENTECH CO., LTD.
주식회사 아모그린텍
Inventors: KIM, Jong Ryoul
김종렬
KANG, Min
강민
KIM, Woo Chul
김우철
OH, Han Ho
오한호
SONG, Yong Sul
송용설
Title: FE-BASED SOFT MAGNETIC ALLOY AND MAGNETIC PART USING SAME
Abstract:
An Fe-based soft magnetic alloy is provided. The Fe-based soft magnetic alloy according to an embodiment of the present invention is represented by empirical formula FeaBbCcCud wherein a, b, c and d indicate the at%(atomic percent) of corresponding elements, 78.5≤≤a≤≤87.0, 12≤b+c≤≤21 and 0.5≤≤d≤≤1.5, and comprises α-Fe and metal compounds formed with Fe and at least one element of B, C and Cu. Accordingly, the alloy has a high saturated magnetic flux density, excellent high-frequency characteristics and low coercivity, and thus can be very easily employed as a compact and light high-performance and high-efficiency part. Also, the present invention incurs a very low production cost and can be mass-produced by facilitating alloy production by allowing easy control of components, contained in the alloy, during the alloy production process. Accordingly, the present invention can be widely applied as a magnetic part of electric and electronic devices such as a high-power laser, a high-frequency power supply, a high-speed pulse generator, an SMPS, a high-pass filter, a low-loss high-frequency transformer, a high-speed switch and wireless charging.