Superconductor technology: apparatus – material – process – Processes of producing or treating high temperature... – Process of making wire – tape – cable – coil – or fiber
Patent
1994-02-22
1995-06-13
King, Roy V.
Superconductor technology: apparatus, material, process
Processes of producing or treating high temperature...
Process of making wire, tape, cable, coil, or fiber
505434, 505430, 505704, 29599, 427 62, 1741251, 428930, H01L 3924
Patent
active
054242827
ABSTRACT:
A process for producing a composite oxide superconducting wire is disclosed, which comprises the steps of compacting material powder for an oxide superconductor in a noble metal pipe; heating the metal pipe filled with the material powder at a temperature ranging between an upper limit corresponding to the lowest melting point of any one of constituent components in the material powder and a lower limit which is lower by 100.degree. C. than said upper limit to sinter the material powder and cooling the product at a cooling velocity of less than 50.degree. C./min, and further including a series of wire-drawing, annealing and sintering steps. Furthermore, an intermediate layer of noble metal can be interposed between the oxide superconductor and the metal pipe.
REFERENCES:
patent: 3932315 (1976-01-01), Sleight
patent: 4826808 (1989-05-01), Yurek et al.
patent: 4906609 (1990-03-01), Yamauchi
patent: 4952554 (1990-08-01), Jin et al.
patent: 4994432 (1991-02-01), Hermann
patent: 5011823 (1991-04-01), Jin
patent: 5030616 (1991-01-01), Yamamoto
patent: 5081075 (1992-01-01), Jin
patent: 5100865 (1992-03-01), Yamamoto
"Microstructural and Electromagnetic Characterization", D. C. Larbalestier et al, Applied Superconductivity Center and Department of Metallurgical and Mineral Engineering, University of Wisconsin, Madison, Wis., 1987 Mar. 18.
"Bulk and Wire Type Y--Ba--Cu Oxide Superconductor", Yamada et al, Int. Conference on Low Temperature Physics, Kyoto, 1987 Japanese Journal of Applied Physics, vol. 26 (1987) Supplement 26-3.
"Super Conducting Tape-Shaped Wire", S. Matsuda et al, pp. 695-698, Hitachi Research Laboratory of Hitachi Ltd., Hitachi, Japan, Nov. 30, 1987.
"Fabrication and Superconducting Properties of High T.sub.c Oxide Wire", N. Sadakata et al, Materials Research Society, pp. 293-296, Nov. 30, 1987.
"Fabricaiton of Multifilamentary Y--Ba--Cu--O Oxide Superconductor", H. Sekine et al, Appl. Phys. Lett 52(26), Jun. 27, 1988, pp. 2261-2262.
Ashi Newspaper, Masumoto et al, Mar. 10, 1987.
"A New Route to Oxide Superconductors", Arthur L. Robinson, Science vol. 236, Jun. 19, 1987, p. 1526.
"Possible High T.sub.c Superconductivity in the Ba--La--Cu--O System" J. G. Bednorz and K. A. Muller, IBM Zurich Research Laboratory, Ruschukon, Switzerland, Z. Phys. B--Condensed Matter 64, pp. 189-193 (1986).
"An Epoch-Making Superconducting Material", Yomiuri Shimbun, (Chu article), Feb. 16, 1987, Kyodo, Japan.
"High T.sub.c Superconductors--Composite Wire Fabrication", S. Jin et al, Appl. Phys. Lett., 51 (3), Jul. 20, 1987, pp. 203-204.
"Critical Temperature and Critical Current Density of La--Sr--Cu Oxide Wires", Osamu Kohno et al, Japanese Journal of Applied Physics, vol. 26, No. 5, May 1987, pp. L759-L760.
"Problems In the Production of YBa.sub.2 Cu.sub.3 O.sub.x Superconducting Wire", R. W. McCallum et al, Advanced Ceramic Materials, vol. 2, No. 3B, Special Issue 1987, pp. 388-400.
Sheng et al, Nature vol. 332, 3 Mar. 1988, pp. 55-57.
Maeda et al, Jap Jour of App Phys. vol. 27, No. 2, Feb. 1988, pp. L209-L210.
Awazu Tomoyuki
Jodai Tetsuji
Kawabe Nozomu
Murai Teruyuki
Yamamoto Susumu
Feeney William L.
King Roy V.
Sumitomo Electric Industries Ltd.
LandOfFree
Process for manufacturing a composite oxide superconducting wire 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 composite oxide superconducting wire, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for manufacturing a composite oxide superconducting wire will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1309342