公开(公告)号：US20240387083A1

公开(公告)日：2024-11-21

申请号：US18692884

申请日：2022-09-19

Applicant: AMOGREENTECH CO., LTD.

Inventor： Se Joong YOON ,  Han Ho OH

IPC: H01F1/147

Abstract: Provided is an Fe-based soft magnetic alloy. An Fe-based soft magnetic alloy is represented by the empirical formula XaBbSicCudMe, wherein: X includes Fe and at least one element among Ni and Co; M includes at least one element among Nb and Mo; a, b, c, d, and e indicate the atomic percents (at %) of corresponding elements, in which 15.0≤b+c≤19.0, 0.5≤d≤1.5, and 2.0≤e≤5.0; and X is included as the remainder. Accordingly, the Fe-based soft magnetic alloy has high saturation magnetic flux density and low magnetic loss characteristics, and thus can be very easily used in various parts using magnetic materials. In addition, since the effect of heat treatment conditions can be minimized during the realization of uniform and small crystal grains after heat treatment, process conditions can be easily designed, so that the Fe-based soft magnetic alloy is very suitable for mass production.

公开(公告)号：US20190010586A1

公开(公告)日：2019-01-10

申请号：US16068623

申请日：2017-01-06

Applicant: AMOGREENTECH CO., LTD. ,  INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY ERICA CAMPUS

Inventor： Jong Ryoul KIM ,  Min KANG ,  Woo Chul KIM ,  Han Ho OH ,  Yong-Sul SONG

IPC: C22C38/16 ,  C21D6/00 ,  H01F1/153 ,  H01F27/24 ,  H01F27/28

Abstract: An Fe-based soft magnetic alloy is provided. The Fe-based soft magnetic alloy can be represented by empirical formula FeaBbCcCud, and in the empirical formula, a, b, c and d are atomic percent (at %) of the corresponding element and are respectively 78.5≤a≤86, 13.5≤b+c≤21 and 0.5≤d≤1.5. The alloy has a high saturated magnetic flux density, excellent high frequency characteristics and low coercivity, and thus greatly facilitates the development of use as high performance/high efficiency small/lightweight parts. Since manufacturing costs are very low and the components contained in an alloy are easily controlled in an alloy manufacturing process, thereby enabling mass production of the alloy, the present invention can be widely applied as magnetic parts 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 fast switch and wireless charging.