Al-stabilized superconducting wire and the method for producing the same

An aluminum-stabilized superconducting wire consisting essentially of superconducting elementary wires and high purity aluminum wires alternately wound around a core so that said superconducting elementary wires and high purity aluminum wires are in contact with each other, said aluminum wire having high aluminum purity of about 99.99% and above, said core being selected from the group consisting of a superconducting elementary wire, an electrically insulated copper wire, an electrically insulated copper alloy wire, a nonmagnetic metal wire and a nonmagnetic metal alloy, said aluminum wires serving as a stabilizer in said wire arrangement and wherein the entire wire arrangement is impregnated with solder to bond the wound wires together, said impregnated wire arrangement characterized by having high mechanical toughness and improved electrical contact for greater electrical stability and wherein the risk of breakage of the aluminum wire is greatly reduced in a subsequent working process as a result of said impregnated wire arrangement.