Method of producing superconducting fibers of YBA2CU30X

Details Method of producing superconducting fibers of YBA2CU30X Method of producing superconducting fibers of YBA2CU30X

1989-07-21

1990-11-13

Roy, Upendra

Superconductor technology: apparatus, material, process

High temperature , per se

Having tc greater than or equal to 150 k

29599, 148404, 428930, 505704, 505740, F04B 4188, H01B 1204

Patent

active

049701940

ABSTRACT:
Fibers of YBa.sub.2 Cu.sub.3 O.sub.x have been produce by pendant drop melt extraction. This technique involves the end of a rod of YBa.sub.2 Cu.sub.3 O.sub.x melted with a hydrogen-oxygen torch, followed by lowering onto the edge of a spinning wheel. The fibers are up to 10 cm in length with the usual lateral dimensions, ranging from 20 .mu.m to 125 .mu.m. The fibers require a heat treatment to make them superconducting.

REFERENCES:
patent: 3838185 (1974-09-01), Maringer et al.
patent: 4479528 (1984-10-01), Maringer et al.
patent: 4484614 (1984-11-01), Maringer
patent: 4576660 (1986-03-01), Rowe
patent: 4578129 (1986-03-01), Rowe
patent: 4589471 (1986-04-01), Gigliotti, Jr. et al.
patent: 4729973 (1988-03-01), Brockway et al.
patent: 4733816 (1988-03-01), Eylon et al.
patent: 4746374 (1988-05-01), Froes et al.
patent: 4770850 (1988-09-01), Helmann et al.
patent: 4807798 (1989-02-01), Eylon et al.
patent: 4809903 (1989-03-01), Eylon et al.
patent: 4824826 (1989-04-01), Damento et al.
S. Jin et al., "Fabrication of Dense Ba.sub.2 YCu.sub.3 O.sub.7 -Superconductor Wire," Appl. Phys. Lett., vol. 51, No. 12, Sep. 21, 1967, pp. 943-945.
R. W. McCallum, "Problems in the Production of YBa.sub.2 Cu.sub.3 O.sub.x Superconducting Wire," Advanced Ceramic Materials (American Ceramic Society Publication), vol. 2, No. 3B, Jul. 1987, pp. 388-400.
Tomoko Goto et al., "Preparation of High-T.sub.c Y-Ba-Cu-O Superconducting Filaments by Suspension Spinning Method," Japanese Journal of Applied Physic vol, 26, No. 9, Sep. 1987, pp. L1527-L1528.
"Low Temperature Fabrication of Superconducting Thin Films," IBM Technical Disclosure Bulletin, vol. 30, No. 12, May 1988, p. 116.
M Kao, "Synthesis of Y-Ba-Cu-O Superconductors From Y.sub.2 O.sub.3, BaO.sub.2 and Cu.sub.2 O: The Optional Oxygen Treatment," Materials Letters, vol. 6, No. 3, Dec. 1988, pp. 53-57.

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