公开(公告)号：US20230025020A1

公开(公告)日：2023-01-26

申请号：US17935779

申请日：2022-09-27

申请人： Murata Manufacturing Co., Ltd.

发明人： Luan JIAN ,  Kazuhiro HENMI

IPC分类号： H01F1/147 ,  B22F1/054 ,  C22C38/02 ,  C22C38/00 ,  C22C38/16 ,  B22F1/065

摘要： A soft magnetic alloy powder includes soft magnetic alloy particles having an amorphous phase. Each of the soft magnetic alloy particles has chemical composition represented by FeaSibBcCdPeCufSngM1hM2i, where M1 is one or more elements of Co and Ni, M2 is one or more elements of Ti, Zr, Hf, Nb, Ta, Mo, W, Cr, Al, Mn, Ag, V, Zn, As, Sb, Bi, Y, and a rare earth element, and 79≤a+h+i≤86, 0≤b≤5, 7.2≤c≤12.2, 0.1≤d≤3, 7.3≤c+d≤13.2, 0.5≤e≤10, 0.4≤f≤2, 0.3≤g≤6, 0≤h≤30, 0≤i≤5, and a+b+c+d+e+f+g+h+i=100 (parts by mol) are satisfied.

公开(公告)号：US20230017833A1

公开(公告)日：2023-01-19

申请号：US17934518

申请日：2022-09-22

申请人： Murata Manufacturing Co., Ltd.

发明人： Luan JIAN ,  Masashi INOGUCHI ,  Kenji SAKAGUCHI

IPC分类号： H01F1/20 ,  H01F27/255 ,  C22C45/02 ,  B22F1/16 ,  B22F1/14

摘要： A coated soft magnetic alloy particle includes a soft magnetic alloy particle containing an amorphous phase, and a first film containing at least one compound selected from the group consisting of an inorganic compound having a hexagonal, trigonal, or monoclinic crystal structure and a layered silicate mineral. The first film coats a surface of the soft magnetic alloy particle, and an outer peripheral contour of a section of the coated soft magnetic alloy particle has an average smoothness ζ_ave of 0.92 or more and 1.00 or less (i.e., from 0.92 or more and 1.00).