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1.
公开(公告)号:US4959344A
公开(公告)日:1990-09-25
申请号:US373943
申请日:1989-06-29
CPC分类号: B22F3/08 , B01J3/08 , C22C29/12 , H01L39/248 , Y10S505/704 , Y10S505/705 , Y10S505/74 , Y10T29/49014 , Y10T428/2958
摘要: A method of manufacturing a superconductive coil by means of explosive compaction. A wire formed of silver having a superconductive oxide powder charged therein is formed into a coil. The coil is placed within a cylindrical vessel, into which a pressure medium is charged. Explosive compaction is carried out to cause the compaction of the coil through the cylindrical vessel and the pressure medium and hence densify the coil. The compacted coil is heat-treated in an air or oxygen atmosphere. The resulting superconductive coil possesses high critical electric current density. Advantageously, the coil is mounted on a mandrel axially extending therethrough, and placed together with the mandrel into the cylindrical vessel, before explosive compaction.