Superconductor technology: apparatus – material – process – High temperature – per se – Having tc greater than or equal to 150 k
Patent
1988-04-07
1992-03-17
Niebling, John F.
Superconductor technology: apparatus, material, process
High temperature , per se
Having tc greater than or equal to 150 k
505725, 505730, 427 35, 427 38, 427 431, 427 61, 427 62, 20415741, 20415744, 2041575, 20415751, H01B 1200, C01B 1300, C01D 100
Patent
active
050968823
ABSTRACT:
A process for controlling an oxygen content of a non-superconductive or superconductive oxide is provided, in which a beam of particles such as ions, electrons or neutrons or an electromagnetic radiation is applied to the non-superconductive or superconductive oxide of a perovskite type such as YBa.sub.2 Cu.sub.3 O.sub.7-x, thereby increasing or reducing the oxygen content of the oxide at the sites of oxygen in the crystal lattice of the oxide. Furthermore, a superconductive device such as a superconductive magnet, superconductive power transmission wire, superconductive transformer, superconductive shield, permanent current switch and electronic element is made by utilizing the process for controlling the oxygen concentration of the superconductive oxide.
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Aihara Katsuzo
Fukazawa Tokuumi
Hasegawa Haruhiro
Kato Takahiko
Kawabe Ushio
Hitachi , Ltd.
Marquis Steven P.
Niebling John F.
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