This invention relates to a cobalt powder with an FSSS average grain size of < 0.5 mu m which powder when 10 g thereof is added to 200 cm<3> of a solution of ethanol with 10 vol% water and lightly stirred becomes separated in less than 10 s. The Co-powder is particularly useful in the manufacture of submicron (less than 0.5 mu m) cemented carbide products, examples of which are PCB drill blanks and end mills.
申请公布号
WO0030787(A1)
申请公布日期
2000.06.02
申请号
WO1999SE02182
申请日期
1999.11.24
申请人
SANDVIK AB;CARPENTER, MICHAEL, JOHN;GREARSON, ALISTAIR, NEIL;FULLER, PETER, GEORGE
发明人
CARPENTER, MICHAEL, JOHN;GREARSON, ALISTAIR, NEIL;FULLER, PETER, GEORGE