公开(公告)号：US09634219B2

公开(公告)日：2017-04-25

申请号：US14254675

申请日：2014-04-16

申请人： Vaccumschmelze GmbH & Co. KG

发明人： Joachim Gerster ,  Alberto Bracchi ,  Michael Muller

IPC分类号： B22F3/02 ,  B22F3/10 ,  B22F5/00 ,  B22F9/04 ,  C22C13/00 ,  H01L35/20 ,  H01L35/34

CPC分类号： H01L35/34 ,  B22F5/003 ,  B22F9/04 ,  B22F2009/044 ,  B22F2998/10 ,  B22F2999/00 ,  C22C13/00 ,  H01L35/20 ,  B22F3/02 ,  B22F3/10 ,  B22F2201/20 ,  B22F2201/11

摘要： A method for producing a thermoelectric object for a thermoelectric conversion device is provided. A starting material which contains elements in the ratio of a half-Heusler alloy is melted and then cast form an ingot. The ingot is heat-treated for 12 to 24 hours at a temperature of 1000° C. to 1200° C. The homogenised ingot is crushed and ground to provide a powder. The powder is cold-pressed and sintered for 0.5 to 24 hours at a temperature of 1000° C. to 1500° C.