US 11,939,652 B2
Iron alloy particle and method for producing iron alloy particle
Manabu Nakano, Nagaokakyo (JP)
Assigned to Murata Manufacturing Co., Ltd., Kyoto-fu (JP)
Filed by Murata Manufacturing Co., Ltd., Kyoto-fu (JP)
Filed on Sep. 10, 2020, as Appl. No. 17/017,484.
Application 17/017,484 is a continuation of application No. PCT/JP2018/045964, filed on Dec. 13, 2018.
Claims priority of application No. 2018-056446 (JP), filed on Mar. 23, 2018.
Prior Publication US 2020/0406349 A1, Dec. 31, 2020
Int. Cl. B22F 9/04 (2006.01); B22F 1/054 (2022.01); B22F 1/08 (2022.01); B22F 1/142 (2022.01); C22C 45/02 (2006.01); H01F 1/153 (2006.01)
CPC C22C 45/02 (2013.01) [B22F 1/054 (2022.01); B22F 1/08 (2022.01); B22F 1/142 (2022.01); B22F 9/04 (2013.01); H01F 1/15341 (2013.01); B22F 2009/048 (2013.01); B22F 2301/35 (2013.01); C22C 2200/02 (2013.01); C22C 2200/04 (2013.01); C22C 2202/02 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An iron alloy particle comprising an iron alloy, the particle comprising:
multiple mixed-phase particles, each comprising an amorphous phase and a nanocrystal of from 10 nm to 100 nm in crystallite size; and
a grain boundary layer between the mixed-phase particles,
wherein a precipitation rate of the nanocrystals is from 20% to 100%.