STRUCTURE FOR HTS COMPOSITE CONDUCTORS AND THE MANUFACTURE OF SAME

摘要

A superconducting oxide composite structure is provided which includes a superconducting oxide member (10), a metal layer (30) surrounding the superconducting oxide member, and an insulating layer (20) of a complex oxide formed in situ adjacent to the superconducting oxide member (10) and the metal layer (30). A method of forming such a superconducting oxide composite structure includes encapsulating a superconducting oxide member or precursor within a metal matrix layer from the group of: (i) a reactive metal sheath adjacent to the superconducting oxide member or precursor, the reactive metal sheath surrounded by a second metal layer or (ii) an alloy containing a reactive metal; to form an intermediate product, and, heating the intermediate product at temperatures and for time sufficient to form an insulating layer of a complex oxide in situ, the insulating layer (20) being adjacent to the superconducting oxide member (10), or precursor, and the metal matrix layer (20).