production process for conductors, where the superconductor is formed from its precursor material(s) in its final position in the conductor Note 1 to entry: Cu/Nb or Cu/V mixtures in which Nb or V dendritically form from the melt are processed into wire or tape to give fine internal filamentary forms of Nb or V in a copper matrix, and Nb3Sn or V3Ga are formed by the diffusion process. Note 2 to entry: In-situ process includes also a production process of a superconducting thin film grown in a single step process. Note 3 to entry: In-situ process includes also a production process of MgB2 wires in which mixed powders of magnesium and boron or their compounds are filled in a metal tube with heat treatment for reaction after the drawing.
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