Oxide superconducting material and process for producing the sam

Details Oxide superconducting material and process for producing the sam Oxide superconducting material and process for producing the sam

1992-01-15

1994-03-08

Lieberman, Paul

Superconductor technology: apparatus, material, process

High temperature , per se

Having tc greater than or equal to 150 k

252518, 252521, 505780, 505785, C01F 1700, C01G 302, H01L 108, H01L 3912

Patent

active

052927164

ABSTRACT:
A RE-Ba-Cu-O type oxide superconducting material (RE represents Y, Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm, Yb, Lu or a combination of two or more of them) having a phase structure including a REBa.sub.2 Cu.sub.3 O.sub.y phase and a RE.sub.2 BaCuO.sub.5 phase of 20 .mu.m or less in diameter dispersed in the REBa.sub.2 Cu.sub.3 O.sub.y phase, in which superconducting material RE consists of at least two elements selected from Y, Cl, Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm, Yb and Lu. Said oxide superconducting material can be produced by melt processing.

REFERENCES:
patent: 4956336 (1990-09-01), Salama
patent: 5084436 (1992-01-01), Morimoto
European search report.
"Copper Oxide Superconductor" by C. P. Poole, Jr., T. Datta and H. A. Farach (John Wiley & Sons, New York, 1988), pp. 122-130.
"Encyclopaedia Chimica", vol. 5, p. 388, right col., Kyoritsu Publishing Co., 1963, pp. 388-389.

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