Oriented superconductor containing a dispersed non-superconducti

Details Oriented superconductor containing a dispersed non-superconducti Oriented superconductor containing a dispersed non-superconducti

1990-01-29

1992-01-28

Lieberman, Paul

Superconductor technology: apparatus, material, process

High temperature , per se

Having tc greater than or equal to 150 k

252521, 423604, 423635, 501123, 501152, 505785, C01F 1102, C01F 1700, C01G 302, H01L 3900

Patent

active

050844369

ABSTRACT:
An oxide superconductor comprising a matrix of plate crystals of the formula REBa.sub.2 Cu.sub.3 O.sub.7-y wherein RE is at least one member selected from the group consisting of Y, La, Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm, Yb, and Lu, and y is the amount of oxygen deficiency, oriented and overlaid one on another, and granular crystals of the formula RE.sub.2 BACuO.sub.5 wherein RE is as defined above, insularly dispersed in the matrix in an amount of at least 0.1 mol per mol of the REBa.sub.2 Cu.sub.3 O.sub.7-y crystals.

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Liu, "Superconductivity and Structure of Single X'tal Y Ba.sub.2 Cu.sub.3 O.sub.x ", Physic Lett. A, v. 121(6), May 4, 1987, pp. 305-306.
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Ekin, "Transport Critical Current in Bulk Sintered BYa.sub.2 Cu.sub.3 O.sub.x ", Adv. Ceramic Mat'ls, v. 2. (3B) Special Issue, Jul. '87, p. 586.
Murphy, "New Superconducting Cuprate Perouskiter", Phys. Rev. Lett., v. 58(18), May 4, 1987, pp. 1888-1890.
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