Manufacture of superconducting ceramic magnet

Abstract

Abstract PURPOSE:To form a coil directly on a spool without using winding materials and overcome the difficulty associated with the weak point of ceramics where it is difficult to make linear ceramics; besides, to prevent a lowering of characteristics of the superconductivity because of making the linear ceramics by forming a coil after flame-spraying powders consisting of superconductive ceramic materials in the form of solenoid at an outer circumference of the spool. CONSTITUTION:A filament substance 2 is wound in the form of solenoid at an outer circumference of a cylindrical spool 1 and fine particles 3 consisting of a ceramic superconductor are flame-sprayed at the outer circumference of the spool 1. After the filament substance 2 is removed and the flame-sprayed fine particles 3 at the outer circumference of the spool 1 is sintered by heat treatment, an insulator 7 is filled at a part where the filament substance 2 is removed. For example, the fine particles 3 of the superconductive ceramic consisting of Y-Ba-Cu-O and the like are flame-sprayed and a coil 4 obtained by removing a spacer 2 out of the spool 1 is treated in the air and then, a solenoid coil 6 is formed by sintering the fine particles 3 again. After that, an epoxy resin is filled in gaps between the outer circumference of the coil and a cylindrical container and then, the coil the epoxy resin is set so as to form a hardened layer 7. Then a magnet 5 is formed by providing a stainless reinforcing layer 8.

Inventors

• 👤 Hidemoto Suzuki
• 👤 鈴木　英元
• 👤 Masamitsu Ichihara
• 👤 市原　政光
• 👤 Takejiro Kurita
• 👤 栗田　武寿郎
• 👤 Akira Imai
• 👤 章 今井
• 👤 Yuichiro Oda
• 👤 勇一郎 小田

Bibliographic Details