公开(公告)号：US09767956B2

公开(公告)日：2017-09-19

申请号：US14084011

申请日：2013-11-19

申请人： Seiko Epson Corporation

发明人： Isamu Otsuka ,  Yu Maeta ,  Toshikuni Sato

IPC分类号： B32B5/16 ,  B05D7/00 ,  C23C10/30 ,  H01F41/00 ,  H01F1/147 ,  H01F1/24 ,  H01F27/255 ,  C23C10/28 ,  H01F1/33

CPC分类号： H01F41/005 ,  C23C10/28 ,  C23C10/30 ,  H01F1/14733 ,  H01F1/14766 ,  H01F1/24 ,  H01F1/33 ,  H01F27/255

摘要： A composite particle includes: a particle composed of a soft magnetic metallic material, and a coating layer composed of a soft magnetic metallic material having a different composition from that of the particle and fusion-bonded to the particle so as to cover the particle, wherein when the Vickers hardness of the particle is represented by HV1 and the Vickers hardness of the coating layer is represented by HV2, HV1 and HV2 satisfy the following relationship: 100≦HV1−HV2, and when half of the projected area circle equivalent diameter of the particle is represented by r and the average thickness of the coating layer is represented by t, r and t satisfy the following relationship: 0.05≦t/r≦1.