抄録
Nb-Ti and Nb3Sn conductors with different cross-sectional configurations are being produced for matching the specifications of different applications. Magnetic fields exceeding 18T have been so far generated at 4.2K by a superconducting magnet. In this article, recent progresses achieved in Nb-Ti, Nb3Sn and other metallic superconducting materials are reviewed. The developments of superconductors for AC use and those capable of generating fields over 20T are major topics in this area.
