Agency of Industrial Science and Technology

Ministry of International Trade & Industry

Harehiko Nomura

Kazuhiko Terao

Kenichi Koyama

Kiyoshi Takahisa

Disclosed herein is a superconductor covered with a reinforced aluminum matrix, which is obtained by cladding a superconductor with an aluminum matrix reinforced with a very small proportion of alumina dispersed therein and subjecting the clad superconductor to integral forming by codrawing.

Superconductor covered with reinforced aluminum matrix

The explosion or destruction of a superconducting system which may occur when an abnormal state arises in any part of the system if allowed to develop into a catastrophic quenching is prevented by providing the system with an acoustic wave detecting device adapted to detect the acoustic waves emitted upon occurrence of the abnormal state, analyze the acoustic waves detected in the form of signals to determine the extent of the abnormal state, foretell stepwise the approach of catastrophic quenching and, on the basis of the data thus obtained, effect proper feedback to the system.

Growing community of inventors

Musashimurayama, Japan

Harehiko Nomura