Method for forming internally helixed high temperature supercond

Details Method for forming internally helixed high temperature supercond Method for forming internally helixed high temperature supercond

1991-05-13

1993-09-28

King, Roy

Superconductor technology: apparatus, material, process

High temperature , per se

Having tc greater than or equal to 150 k

505704, 505730, 505728, 505701, 427 62, 427237, 427239, 4274192, 4274193, 21912168, H01L 3924, B05D 512

Patent

active

052486575

ABSTRACT:
A superconducting conductor assembly using high temperature materials. A double-walled tubular structure has at least one helical strip of superconductive material on the inner wall of the inside tube. Brittle, non-ductile superconducting materials may be used. A coolant, typically liquid nitrogen, is circulated between the tubes to maintain the superconductor below the critical temperature of the superconductor. A buffer layer is preferably included between tube wall and superconductor. A plurality of alternating layers of buffer and superconductor may be used.

REFERENCES:
patent: 4957900 (1990-09-01), Yamazaki
patent: 4965247 (1990-10-01), Nishiguchi
patent: 5043320 (1991-08-01), Meyer et al.
patent: 5044406 (1991-09-01), Yamazaki
patent: 5132283 (1992-07-01), McCune
Asano et al, "High Tc oxide superconducting films for RF cavities", Proc. Workshop RF Supercond., 4th, 1989, vol. 2, pp. 723-743, 1990.
Yan et al, "Water interaction with the superconducting YBa.sub.2 Cu.sub.3 O.sub.7 phase", Appl. Phys. Lett. 51(7) Aug. 1987 pp. 532-534.

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