Patent ID: 8838194

Claim:
A joint system, comprising: first and second superconducting wires, each wire comprising a number of filaments which each comprise a superconductive core within a respective sheath, the filaments being embedded within a matrix, and the sheaths comprising elemental Nb; a certain length of the filaments of each wire being exposed by removal of the matrix; within the certain length, the sheaths are of Nb 3 Sn throughout their thickness, and adjacent to at least one end carrying current to the certain length and outside of said certain length the sheaths comprising said elemental Nb; and within said certain length a superconductive path is formed between the superconductive cores of the filaments of the first wire through the respective Nb 3 Sn sheaths of the first wire to the superconductive cores of the filaments of the second wire through the respective Nb 3 Sn sheaths of the second wire.