High temperature superconductor system and processes for making

Details High temperature superconductor system and processes for making High temperature superconductor system and processes for making

1988-01-15

1991-02-19

Lieberman, Paul

Superconductor technology: apparatus, material, process

High temperature , per se

Having tc greater than or equal to 150 k

252521, 423604, 423624, 423635, 501123, 502346, 505783, C01F 1102, C01G 302, C01G 1500, H01L 3912

Patent

active

049944320

ABSTRACT:
A high temperature superconducting system has the general composition Tl-R-X-Y, wherein: R is a Group 2A element; X is a Group 1B element; and Y is a Group 6A element. Preferably, the composition has the following formula Tl-Ba-Cu-O. The high temperature superconductor of the present invention has a transition temperature of about 90 K with the probability of one phase superconducting at a temperature perhaps as high as 270 K. Processes for making the high temperature superconductor are also provided.

REFERENCES:
patent: 4870052 (1989-09-01), Engler et al.
patent: 4880773 (1989-11-01), Itozaki et al.
Richert et al., AIP Conf. Proc., 165 (Thin Film Processing and Characterization of High-Temperature Superdonductors), pp. 277-283, 11/87.
Z. Z. Sheng et al., Nature, vol. 332, Mar. 3, 1988, pp. 55-58.
Sheng et al., Physical Review Letters, vol. 60, No. 10, Mar. 7, 1988, pp. 937-940.
Sheng et al, Nature, vol. 332, Mar. 10, 1988, pp. 138-139.
Waldrop, Science, Mar. 11, 1988, p. 1243.
Saito et al., Physica B & C (Amsterdam), 148 (1-3), pp. 336-338, 1987 (abstract only).
K. N. Yang, High Temperature Superconductivity in Rare Earth (R)-Barium Copper Oxides (RBa.sub.2)Cu.sub.3 O.sub.9-.delta., Solid State Communications, vol. 63, No. 6, pp. 515-519 (1987).
J. M. Ferrira, Long-Range Magnetic Ordering in the High-T.sub.C Superconductors RBa.sub.2 Cu.sub.3 O.sub.7-.delta. (R=Nd, Sm, Gd, Dy, and Er), The American Physical Society, 1988, vol. 37, No. 4.
J. M. Tarascon, Oxygen and Rare-Earth Doping of the 90-K Superconducting Perovskite YBa.sub.2 Cu.sub.3 O.sub.7-x, The American Physical Society, 1987, vol. 36, No. 1.
P. H. Hor, Superconductivity Above 90 K in the Square-Planar Compound System ABa.sub.2 Cu.sub.3 O.sub.6+x with A=Y, La, Nd, Sm, Eu, Gd, Ho, Er, and Lu, The American Physical Society, 1987, vol. 58, No. 18.
A. Khurana, Superconductivity Seen Above the Boiling Point of Nitrogen, Physics Today, Apr. 1987.
R. J. Cava, Bulk Superconductivity of 91 K in Single-Phase Oxygen-Deficient Perovskite Ba.sub.2 YCu.sub.3 O.sub.9-.delta., The American Physical Society, 1987, vol. 58, No. 16.

Affiliated with

Also associated with

Rating

High temperature superconductor system and processes for making 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 temperature superconductor system and processes for making , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High temperature superconductor system and processes for making will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1143602