Oxide superconductor Bi--Sr--Ca--Mg--Ba--Cu--O

Details Oxide superconductor Bi--Sr--Ca--Mg--Ba--Cu--O Oxide superconductor Bi--Sr--Ca--Mg--Ba--Cu--O

1991-04-02

1993-08-24

Lieberman, Paul

Superconductor technology: apparatus, material, process

High temperature , per se

Having tc greater than or equal to 150 k

252521, 505782, C01F 500, C01F 1102, C01G 302, H01L 3912

Patent

active

052389111

ABSTRACT:
An oxide superconductor of the formula: Bi.sub.1.0 Sr.sub.A Ca.sub.B Mg.sub.C Ba.sub.D Cu.sub.1.0.+-.0.15 O.sub.X wherein A=0.6-1.3, B=0.3-0.9, C=0.01-0.3 and D=0.01-0.3 in atomic ratio, having a 2212 phase with a critical temperature of making electrical resistance zero at about 80K or more, can be produced by firing preferably at 820.degree.-870.degree. C. in a lower oxygen content atmosphere.

REFERENCES:
Schrodt "Properties of Bi--Sr--Ca--Cu--O . . . " Solid State Comm v. 67 (9) 1988 pp. 871-874.
Dou "Superconductivity in the Bi--Pb--Sr--Ca--Cu--O System w/ Oxide Additive" Supercond. Sci. Technol. 2 (1989).
Kawai "Effect of Ba Addition on the Properties of Bi--Pb--Sr--Ca--Cu--O . . . " Jap. Jnl. Appl. Physics v. 27(12) Dec. 1988 pp. L2296-L2299.
Kawai "Dupont Effects on the Superconductivity in the Bi--Sr--Ca--Cu--O System" Jap. Jnl. Appl. Phys. 25 v. 28 (4) Apr. 1989 pp. L551-L554.
Zuyao "Superconductivity in the (Bi,Pb)--Ca--Ar--Ba--Cu--O System" Solid State Comm. v. 70 No. 2 1989 pp. 133-135.
Japanese Journal of Applied Physics, Letters vol. 28, No. 07, Jul. 1989, Tokyo, Japan, pp. 1140-1143; T. Aschizawa et al; "Variation of Composition in a Bi(Pb)--Sr--Ca--Cu--O Grain and the Influence of Jg and Ba doping on its Superconductivity".
Reviews of Solid State Science, Prooc. Int. Conf. on High Temp. Supercond. Srinagar India, 2-3 May 1988, vol. 2. No. 2 and 3, pp. 34-49; L. Gananpathi et al.; "Investigations of the Bi--Ca--Sr--Cu--L High Temperature Superconductors".
Journal of Crystal Growth. vo. 96, No. 2, Jun. 1989, Amsterdam NL, pp. 459-464; H. Jaeger et al.; "Processing and Superconducting Properties of Bi--Sr--Ca--Cu--O Compounds".

Affiliated with

Also associated with

Rating

Oxide superconductor Bi--Sr--Ca--Mg--Ba--Cu--O does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Oxide superconductor Bi--Sr--Ca--Mg--Ba--Cu--O, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oxide superconductor Bi--Sr--Ca--Mg--Ba--Cu--O will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-829168