Manufacture of oxide superconducting coil

Abstract

Abstract PURPOSE:To obtain a superconducting coil with a high mechanical strength by forming a coil pattern-shaped groove on a metal base, and thermally treating the base in the oxygen atmosphere by filling a predetermined compound powder in the groove after coating the groove with pure copper whose surface is oxidized. CONSTITUTION:A spiral-shaped groove 2 is formed on a metal base 1. Copper is coated by an electroplating method on the side where the groove 2 of the base 1 is formed, a pure copper layer 3 is formed, and the surface of the pure copper layer 3 is oxidized 4 by treatments such as anodic oxidation and chemical oxidation. Then by filling a mixture 5 of compound powders of both group IIA and group IIIA elements in the periodic table and thermally treating in the oxygen atmosphere, a mixture 5 within the groove 2 is baked, while further causing the mixture 5 to react with the copper oxide layer 4 and the oxygen in the atmosphere to form a superconductive layer 6 of A-B-Cu-O (where A is a group IIA element and B is a group IIIA element in the periodic table) in the interior of the groove 2, whereby a superconductive coil 7 having a spiral pattern is obtained.

Inventors

• 👤 Masaru Sugimoto
• 👤 Tsukasa Kono
• 👤 Yoshimitsu Ikeno
• 👤 Nobuyuki Sadakata
• 👤 Shinya Aoki
• 👤 Mikio Nakagawa
• 👤 Kyoji Tachikawa

Bibliographic Details