SUPERCONDUCTION MAGNET AND MANUFACTURING METHOD FOR PERSISTENT CURRENT

摘要

A superconductive magnet for a persistent current and a fabrication method thereof are provided to maintain a constant and stable magnetic field generated in a magnet by flowing a conducting current without current loss. In a superconductive magnet for a persistent current, a metal preform(11) is formed with a nickel(Ni) or a stainless material. An insulation ceramic(12) has two-axis orientation for preventing reaction between the metal preform and a superconductor thin film(13) during a thermal treatment process for fabricating a coated conductor(10) by being deposited or coated on the surface of the metal preform. The superconductor thin film becomes a transportation path of a current(i) by being deposited or coated on the surface of the insulation ceramic. The coated conductor is divided along the length direction by stacking a metal film(14) forming a protection layer with silver and copper, by being deposited or electro-deposited on the surface of the superconductor thin film.