Supra conductor connection with a core or with a plurality of filaments, which in each case an mgb2 - phase, as well as intermediate and a process for the preparation of a superconductor conductor composite

摘要

Supra conductor connection (18) with a superconducting mgb₂-Phase (13) having a core (28) and a first shell (5), which surrounds the core (28),the first shell (5) comprises a superconducting alloy, the magnesium and at least one further metal,an inner region (11) of the first shell (5), which surrounds the core (28) and, at the borders, less magnesium than an outer region (12) of the first shell (5), of the inner region (11) of the first shell (5), andthe outer region between 5 and 40 atom% mg.