Y-Ba-Cu-O superconductor for containing antimony or boron to inc

Details Y-Ba-Cu-O superconductor for containing antimony or boron to inc Y-Ba-Cu-O superconductor for containing antimony or boron to inc

1988-11-09

1990-09-25

Lieberman, Paul

Superconductor technology: apparatus, material, process

High temperature , per se

Having tc greater than or equal to 150 k

75234, 419 22, 423604, 423635, 501123, 502346, 505775, C01F 1700, C01F 1102, C01G 302, H01L 3912

Patent

active

049593480

ABSTRACT:
A superconductor essentially comprises a three-component metallic oxide including yttrium, barium, and copper (Y-Ba-Cu three-component metallic oxide) and an oxide of an element having a melting point lower than that of the three-component metallic oxide and having 0.1 to 5.0 wt % in form of the oxide thereof. The element is preferably of bismuth, antimony, boron, lead, and praseodymium.

REFERENCES:
patent: 4540677 (1985-09-01), Enomoto et al.
Kobayashi, "Single Crystal ESR Study of Y.sub.2 BaCuO.sub.5 " Jap. Jnl. of Appld. Phys., vol. 27, No. 4, Apr. 1988, pp. L670-L673.
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Blower, "Bismuth Additions to Y Ba.sub.2 Cu.sub.3 O.sub.7 : Structural and Electrical . . . " Solid State Comm., vol. 68, No. 8, Nov. 1988, pp. 765-767.
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Sampathkumaran, "Absence of Solid Solution of the Type Y(Ba-RE)CuO" Jap. Jnl. of Appld. Phys., vol. 27, No. 4, Apr. 1988, pp. L584-L586.
Goncalves, "Transport Properties of the Oxide Y.sub.1-x Pr.sub.x Ba.sub.2 Cu.sub.3 O.sub.7-x. . . " Phys. Rev. B., vol. 37, No. 13, May 1, 1988, pp. 7476-7481.
Suzuki, "Rare-Earth(RE)-Barium Solubility Behaviour in . . . " Jap. Jnl. of Appld. Phys., vol. 27, No. 5, May 1988, pp. L792-L794.
Nojiri, "Barium Copper Lead Yttrium Oxide Superconductors . . . " Jap. Patent Appli-Abstract, 10/20/88.
Yamazaki, "Manufacture of Superconductive Materials" Jap. Patent Appli-Abstract, 10/25/88.

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