公开(公告)号：EP3159079A4

公开(公告)日：2018-01-24

申请号：EP15809662

申请日：2015-06-17

申请人： SHOEI CHEMICAL IND CO

发明人： AKIMOTO YUJI ,  TANAKA HIDEKI ,  IWASAKI MINETO ,  MATSUO AKIKO

IPC分类号： B22F1/00 ,  B22F1/02 ,  B22F9/12 ,  B23K35/02 ,  B23K35/30 ,  B23K35/36 ,  C22C5/06 ,  C22C9/00 ,  C22C19/00 ,  C22C19/03 ,  H01F27/28 ,  H01F41/04 ,  H01G4/008 ,  H01G4/012 ,  H01G4/30

CPC分类号： B22F9/14 ,  B22F1/0003 ,  B22F1/0014 ,  B22F1/0074 ,  B22F1/0085 ,  B22F1/02 ,  B22F9/04 ,  B22F9/12 ,  B22F2301/10 ,  B22F2301/15 ,  B22F2302/40 ,  B22F2302/45 ,  B22F2303/40 ,  B22F2998/10 ,  B22F2999/00 ,  B23K1/0016 ,  B23K35/025 ,  B23K35/3033 ,  B23K35/3612 ,  B23K35/3613 ,  C22C5/06 ,  C22C9/00 ,  C22C19/002 ,  C22C19/03 ,  H01F27/2804 ,  H01F41/041 ,  H01F2027/2809 ,  H01G4/008 ,  H01G4/0085 ,  H01G4/012 ,  H01G4/30 ,  B22F2202/13 ,  B22F2301/40 ,  B22F2301/45

摘要： This invention aims at providing a carbon-coated metal powder having few impurities, a narrower particle size distribution, and sintering properties particularly suitable as a conductive powder of a conductive paste for forming internal conductors in a ceramic multilayer electronic component obtained by co-firing multilayered ceramic sheets and internal conductor layers; a conductive paste containing the carbon-coated metal powder; a multilayer electronic component using the conductive paste; and a method for manufacturing the carbon-coated metal powder. The carbon-coated metal powder has specific properties in TMA or ESCA measurements. The carbon-coated metal powder can be obtained by melting and vaporizing a metallic raw material in a reaction vessel, conveying the generated metal vapor into a cooling tube and rapidly cooling the metal vapor by endothermically decomposing a carbon source supplied into the cooling tube, and forming a carbon coating film on metal nuclei surfaces in parallel with generation of the metal nuclei.