Superconductor technology: apparatus – material – process – Processes of producing or treating high temperature... – Process of making wire – tape – cable – coil – or fiber
Patent
1993-05-04
1998-07-28
Gorski, Joseph M.
Superconductor technology: apparatus, material, process
Processes of producing or treating high temperature...
Process of making wire, tape, cable, coil, or fiber
29599, 505500, 505739, 505740, 505928, H01L 3924
Patent
active
057863059
ABSTRACT:
A process for manufacturing a wire made of oxide which is applicable for manufacturing a superconducting coil or the like. The process includes steps comprising preparing a mass of oxide having superconductivity from powder material, covering the mass of oxide with a metal pipe, and then reducing the diameter of the metal pipe containing the mass of oxide therein into a wire form by such plastic deformation that exert mainly compressive strain upon the metal pipe. The mass of oxide may be a compound oxide having Perovskite-type crystal structure exhibiting superconductivity. The metal pipe may be made of a metal selected from a group comprising Cu, Al, Nb, V, Mo, Ta, and Ag and of an alloy including these metals as the base. The mass of oxide may be produced by steps including extruding a powder material into a rod shape and then sintering the molded rod at a temperature ranging from 700.degree. to 1,000.degree. C. The plastic deformation of the metal pipe containing the mass of oxide therein may be carried out by swaging.
REFERENCES:
patent: 3162943 (1964-12-01), Wong
patent: 3245141 (1966-04-01), Gruetjen
patent: 3932315 (1976-01-01), Sleight
patent: 4704249 (1987-11-01), Glatzle
patent: 5106825 (1992-04-01), Mandigo et al.
patent: 5145833 (1992-09-01), Prunier, Jr. et al.
Critical Current Density of Wire Type Y-Ba-Cu Oxide Superconductor, Yamada et al, Japanese Journal of Applied Physics.
Superconducting Wires Of High Tc Oxides, Ohmatsu et al, Japanese Journal of Applied Physics, vol. 26 (1987).
Applied Physics Letters, vol. 48, No. 26, 30th Jun. 1986, pp. 1808-1810, American Institute of Physics, New York, U.S. : S. Pourrahimi et al.
"Nb3Sn(Ti) powder metallurgy processed high field superconductors", p. 1808, Left-hand colunm, paragraph 1.
Zietschrift Fur Physik B --Condensed Matter, vol. 64, 1986 pp. 189-193. Springer-Verlag J.G. Bednorz et al. the Ba-La-Cu-O system, Abstract.
Applied Physics Letters, vol. 51, No. 3, 20th Jul. 1987, pp. 203-204, American Institute of Physics, New York, U.S. : S. Jin et al. : "High Tc superconductors --composite wire fabrication", Abstract.
Bednorz et al, "Possible High T.sub.c Superconductivity in the Ba-La-Cu-O System", Z. Phys. B --Condensed Matter 64, (1986) pp. 189-193.
Gorski Joseph M.
Sumitomo Electric Industries Ltd.
LandOfFree
Process for manufacturing a compound oxide-type superconducting does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for manufacturing a compound oxide-type superconducting , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for manufacturing a compound oxide-type superconducting will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-23374