Method for producing molded article of ceramic oxide superconduc

Details Method for producing molded article of ceramic oxide superconduc Method for producing molded article of ceramic oxide superconduc

1990-07-25

1992-08-11

Lowe, James

Superconductor technology: apparatus, material, process

High temperature , per se

Having tc greater than or equal to 150 k

264 22, 264 56, 264 61, 505725, H01L 3912

Patent

active

051378663

ABSTRACT:
A molded article of ceramic oxide superconductor having an increased critical current density is produced by a method including sintering a powdery mixture of oxides and/or carbonates of elements which constitute the ceramic oxide superconductor to obtain a molded article, or melting the sintered ceramic oxide superconductor and molding the superconductor melt to obtain a molded article, wherein the powdery mixture and/or the molded article is irradiated.

REFERENCES:
patent: 4729801 (1988-03-01), Togano et al.
patent: 4762754 (1988-08-01), Nellis et al.
Wenger et al, "Observation of Superconducting Current in LA-BA-Ca-O at 280K" (Feb. 1987).
K. Atobe et al., "Low-temperature neutron irradiation effects on superconducting Y-Ba-Cu oxides", Physical Review B. vol. 36, No. 13, pp. 7194-7196, Nov. 1987.
J. G. Bednorz et al., "Possible High T.sub.c Superconductivity in the Ba-La-Cu-O Systems", Z. Physicians B-Condensed Matter, vol. 64, pp. 189-193 (1986).
Wu et al., "Effects of Powder Preparation and Sintering on the High Temperature Superconducting Y-Ba-Cu-O System," High Temperature Superconductors, ed Gubser, 1987 MRS Spring Mtg., pp. 197-200.
Dagani, "Superconductivity: A Revolution in Electricity is Taking Shape," C&EN, May 11, 1987, pp. 7-16.

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