Superconductor technology: apparatus – material – process – High temperature – per se – Having tc greater than or equal to 150 k
Patent
1991-11-12
1993-03-23
Beck, Shrive
Superconductor technology: apparatus, material, process
High temperature , per se
Having tc greater than or equal to 150 k
505730, 505780, 427 62, 427 36, 423593, 423604, H01B 100, B05D 306
Patent
active
051963973
ABSTRACT:
A high temperature superconducting ceramic copper oxide perovskite with enhanced upper critical field (H.sub.c2) and increased current carrying capacity caused by exposure to gamma radiation.
REFERENCES:
Kato et al, "Radiation effect of YBa.sub.2 Cu.sub.3 O.sub.7-y irradiated by .gamma.-Rays and 15 Mev Neutrons", Jpn. J. Appl. Phys. 27(11) Nov. 1988, L2097-2099.
Bohandy et al, "Gamma Radiation Resistance of the high Tc Superconductor YBa.sub.2 Cu.sub.3 O.sub.7-.delta. ", Apply. Phys. Let. 15(25) Dec. 1987, pp. 2161-2163.
Roas et al, "Irradiation-induced enhancement of the critical current density of epitaxial YBa.sub.2 Cu.sub.3 O.sub.7-x thin films", Appl. Phys. Lett. 54(11) Mar. 1989 pp. 1051-1053.
Shiraishi et al, "Ion irradiation effect on Ba.sub.2 YCu.sub.3 O.sub.7 superconductor" Jpn. J. Apply. Phys. 28(3) Mar. 1989 pp. L409-411.
Van Dover et al, "Critical currents near 10.sup.6 A cm.sup.-2 at 77K in neutron-irradiated single-crystal YBa.sub.2 Cu.sub.3 O.sub.7 ", Nature, vol. 342 Nov. 1989 pp. 55-57.
Beck Shrive
GEC-Marconi Electronics Systems Corp.
King Roy V.
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