公开(公告)号：EP1880426A1

公开(公告)日：2008-01-23

申请号：EP06743521.4

申请日：2006-05-11

申请人： Luvata Oy

发明人： SOMERKOSKI, Jukka

IPC分类号： H01L39/24

CPC分类号： H01L39/2403 ,  H01L39/14

摘要： The invention relates to a method for producing a superconductive element to be used as a wire-in-channel superconductor in magnetic resonance imaging (MRI) and in nuclear magnetic resonance (NMR) applications, which superconductive element contains a superconductive wire and a copper component having a longitudinal groove and the superconductive wire being positioned in the groove. In order to produce the wire-in-channel superconductive element by a mechanical contact between the superconductive wire and a wall of the groove in the copper component, at least one contact surface is coated with a lead free solder material before having the mechanical contact. In order to enhance the thermal and electrical conduction and to create a bond between the said components the soldering material is fused in annealing process step.