High-T.sub.c superconductor or precursor material for the oxide-

Details High-T.sub.c superconductor or precursor material for the oxide- High-T.sub.c superconductor or precursor material for the oxide-

1997-08-15

2000-03-28

Kopec, Mark

Superconductor technology: apparatus, material, process

High temperature , per se

Bismuth containing

505125, 505510, 505782, H01B 1200, H01L 3912, C04B 3550

Patent

active

060431989

ABSTRACT:
The present invention relates to a process for preparing a high-T.sub.c superconductor as a precursor material for the oxide-powder-in-tube method, which involves mixing the oxides of the elements Bi, Sr, Ca and Cu and completely melting them at temperatures of .gtoreq.1000.degree. C., then casting the melt onto a substrate which is kept at room temperature, and disintegrating the cooled melt block and grinding it into a powder.

REFERENCES:
patent: 5047391 (1991-09-01), Bock et al.
patent: 5071829 (1991-12-01), Chiang et al.
patent: 5145831 (1992-09-01), Yamada et al.
patent: 5151407 (1992-09-01), Provenzano
patent: 5215961 (1993-06-01), Rayne et al.
patent: 5294601 (1994-03-01), Bock et al.
patent: 5300486 (1994-04-01), Hults et al.
patent: 5306700 (1994-04-01), Hojaji
patent: 5484766 (1996-01-01), Shah et al.
patent: 5486501 (1996-01-01), Sinha
Ibara et al., "Preparation and Crystallization Process of the High-T.sub.c Superconducting Phase (T.sub.c (end)<100 K) In Bi, Pb-Sr-Ca-Cu-O Glass-Ceramics", Japanese Journal of Applied Physics, vol. 28: I 37-L 40, Jan. 1989.
Luo et al., "Effect of Pb & Sb Sustitution on Superconducting Bi-Sr-Ca-Cu-O prepared by oxidation of liquid-quenched precursor alloys", Appl. Phys. Lett. 55 (14), pp. 1448-1450, Oct. 2, 1989.
Meyer III et al., "Occupied electronic states of single-crystal Bi.sub.2 Ca.sub.1 +x Sr.sub.-x Cu.sub.2 O.sub.8+y ", Physical Review B, vol. 28, No. 10, pp. 7144-7147, Oct. 1, 1988.
Maeda et al., "A New High-T.sub.c Oxide Superconductor without a Rare Earth Element", Japanese Journal of Applied Physics, vol. 27, No. 2, pp. L209-L210 (Feb. 1988).
Subramanian et al., "A New High-Temperature Superconductor: Bi.sub.2 Sr.sub.3-x Ca.sub.x Cu.sub.2 O.sub.8+y ", Science, vol. 239, pp. 1015-1017 (Feb. 1988).
Ullrich et al., "Sinter Conditions and Superconducting Properties of Bi-Pb-Sr-Ca-Cu-O Superconductors", Supercond. Sci. Technol., vol. 3, pp. 602-605 (1990). (No Month).
Tarascon et al., "Superconductivity at 27 K in Modulation-Free Bi.sub.2-x Ph.sub.x Sr.sub.2-y La.sub.y CuO.sub.6 Phases with x-y+0.2", Physica C, vol. 172, pp. 13-22 (1990). (No Month).
Ward et al., "Characteristics of Bi-Pb-Sr-Ca-Cu-O Powders Produced by Aerosol Decomposition and Their Rapid Conversion to the High-T.sub.C Phase", Physica C, vol. 200, pp. 31-42 (1992). No Month.
Aldrich Products for Superconductivity Research (No month) 1990-91 pp. 3, 5, 20, 1991.

Affiliated with

Also associated with

Rating

High-T.sub.c superconductor or precursor material for the oxide- does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High-T.sub.c superconductor or precursor material for the oxide-, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High-T.sub.c superconductor or precursor material for the oxide- will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1326033