Manufacture of superconducting material

Abstract

Abstract PURPOSE:To stably obtain a fine composite oxide superconducting coat film excellent in its superconducting property by forming a second layer made of elements without Cu and O composing a superconducting material on the surface of a Cu or CuO first layer formed on a basic material, and thermally processing this basic material for making mutual dispersion of the elements of the first and second layers. CONSTITUTION:A Cu or CuO sintered body is used for a vapor deposition source 9 of a razor deposition device, and a basic material 1 is arranged on the upper side thereof, then the internal pressure of a vacuum vessel 8 is reduced, a razor beam 10 is radiated to the source 9, thereby particles vaporized by the source 9 is deposited on the surface of the material 1 and a first layer 2 of Cu or CuO is formed. Next, the source is changed into a sintered body comprising elements composed of a superconducting material such as YBa without Cu and O. Then, the razor beam 10 is radiated to the source 9 to form a second layer 3 comprising elements having a superconducting material on the surface of the second layer 2. It is thus possible to stably obtain a fine composite oxide superconducting coating film having a required thickness excellent in its super conductivity.

Inventors

• 👤 Kyoji Tachikawa
• 👤 Shigechika Kosuge
• 👤 Moriaki Ono
• 👤 Kiyokazu Nakada
• 👤 Teruo Suzuki
• 👤 Itaru Watanabe

Bibliographic Details