US 12,440,892 B2
Soft magnetic alloy powder, soft magnetic sintered body, and coil-type electronic component
Takashi Suzuki, Tokyo (JP); Yu Sakurai, Tokyo (JP); Hideyuki Itoh, Tokyo (JP); Kouichi Kakuda, Tokyo (JP); Ryuichi Wada, Tokyo (JP); Nami Enomoto, Tokyo (JP); Yusuke Nagai, Tokyo (JP); Kunihiko Kawasaki, Tokyo (JP); Shinichi Kondo, Tokyo (JP); and Yuya Ishima, Tokyo (JP)
Assigned to TDK CORPORATION, Tokyo (JP)
Appl. No. 17/760,951
Filed by TDK CORPORATION, Tokyo (JP)
PCT Filed Sep. 25, 2020, PCT No. PCT/JP2020/036308
§ 371(c)(1), (2) Date Mar. 16, 2022,
PCT Pub. No. WO2021/060479, PCT Pub. Date Apr. 1, 2021.
Claims priority of application No. 2019-176206 (JP), filed on Sep. 26, 2019.
Prior Publication US 2022/0336128 A1, Oct. 20, 2022
Int. Cl. B22F 3/00 (2021.01); B22F 1/05 (2022.01); B22F 1/10 (2022.01); B22F 1/16 (2022.01); C22C 19/03 (2006.01); C22C 19/05 (2006.01); C22C 30/00 (2006.01); C22C 38/08 (2006.01); H01F 1/147 (2006.01); H01F 27/28 (2006.01)
CPC B22F 3/00 (2013.01) [B22F 1/05 (2022.01); B22F 1/10 (2022.01); B22F 1/16 (2022.01); C22C 30/00 (2013.01); H01F 1/1475 (2013.01); B22F 2304/10 (2013.01); C22C 19/03 (2013.01); C22C 19/057 (2013.01); C22C 38/08 (2013.01); C22C 2202/02 (2013.01); H01F 27/28 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A soft magnetic metal powder comprising soft magnetic metal particles each constituted by a Fe—Ni—Si-M based alloy, wherein
the Fe—Ni—Si-M based alloy further includes P;
M is one or more selected from B, Co, Mn, Ti, Zr, Hf, Nb, Ta, Mo, Mg, Ca, Sr, Ba, Zn and rare earth elements; and
the Fe—Ni—Si-M based alloy includes 15.0 mass % or more and 55.0 mass % or less of Ni, 2.0 mass % or more and 6.0 mass % or less of Si, 2.0 mass % or more and 40.0 mass % or less of M, and 100 ppm or more and 5000 ppm or less of P with respect to 100 mass % of a total amount of Fe, Ni, Si, and M.