Preparation of superconducting oxides and oxide-metal composites

Details Preparation of superconducting oxides and oxide-metal composites Preparation of superconducting oxides and oxide-metal composites

1987-06-10

1993-04-20

Silverberg, Sam

Superconductor technology: apparatus, material, process

High temperature , per se

Having tc greater than or equal to 150 k

505736, 427 62, B05D 512, C23C 810

Patent

active

052043185

ABSTRACT:
A method of preparing a superconducting oxide by combining the metallic elements of the oxide to form an alloy, followed by oxidation of the alloy to form the oxide. Superconducting oxide-metal composites are prepared in which a noble metal phase intimately mixed with the oxide phase results in improved mechanical properties. The superconducting oxides and oxide-metal composites are provided in a variety of useful forms.

REFERENCES:
patent: 3427154 (1969-02-01), Mader et al.
patent: 3796553 (1974-03-01), Daunt
patent: 3815224 (1974-06-01), Pickus et al.
patent: 3933315 (1976-01-01), Sleight
patent: 3954459 (1976-05-01), Schreiner et al.
patent: 4000014 (1976-12-01), Winter
patent: 4001146 (1977-01-01), Horowitz
patent: 4050147 (1977-09-01), Winter et al.
patent: 4171464 (1979-10-01), Steyert, Jr.
patent: 4264358 (1981-04-01), Johnson et al.
patent: 4339508 (1982-07-01), Tsuya et al.
patent: 4540546 (1985-09-01), Giessen
patent: 4701301 (1987-10-01), Kuwahara et al.
patent: 4713360 (1987-12-01), Newkirk et al.
patent: 4770701 (1988-09-01), Henderson et al.
Bednorz et al., Z. Phys. B--Condensed Matter vol. 64, pp. 189-193 (1986).
McKinney, G. Supercurrents vol. 2, pp. 21-24 Feb. 1988.
Haldar et al., Applied Physics Letters vol. 51 No. 7, pp. 538-539 Aug. 17, 1987.
Jin et al., Applied Physics Letters vol. 51 No. 3 pp. 203-204 to Jul. 1987.
McKinnon, N. R. et al., Extended Abstacts High Temperature Superconductors (Proceedings of the 1987 Spring Meeting of the MRS) pp. 185-187 (Apr. 1987).
Shaplygin et al., Russian Journal of Inorganic Chemistry vol. 24(6) 1979 pp. 820-824.
Gilbert et al., Thin Solid Films vol. 54, 1978, pp. 129-136.
Saito et al., Japanese Journal of Applied Physics vol. 26 No. 3 Mar. 1987 pp. L223-224.
Tsurumi et al., Japanese Journal of Applied Physics vol. 26 No. 5 May 1987 pp. L856-L857.
Ku et al., "Superconductivity and Phase Stability in the Heavy Rare Earth Quaternary Compounds RBa.sub.2 Cu.sub.3 O.sub.7 (R.dbd.Ho, Er, Tm, Yb, Lu)", High Temperature Superconductors (Proceedings of Symposium 5, 1987 MRS Spring Meeting, 1987) pp. 177-178.
"Evidence for Superconductivity above 40 K in the La-Ba-Cu-O Compound System", Chu et al., Physical Review Letters, vol. 58, No. 4, Jan. 26, 1987, pp. 405-407.
"Bulk Superconductivity at 36 K in Lal.8Sr0.2CuO4," Cava et al., Physical Review Letters, vol. 581 No. 4, Jan. 26, 1987, pp. 408-410.
"Superconductivity at 93 K in a New Mixed Phase Y-Ba-Cu-O Compound System at Ambient Pressure", Wu et al., 1987.
"High Pressure Study of the New Y-Ba-Cu-O Superconducting Compound System" Hor et al., 1987.
"Superconductivity at 90 K in a Multi-Phase Oxide of Y-Ba-Cu", Tarascon et al., 1987.
"Superconductivity at 40 K in the Oxygen-Defect Perovskites La2-xSrxCuO4-y", Tarascon et al., Science 235, Mar. 13, 1987, pp. 1373-1376.
"Superconductivity: A New Era of Discovery for Electricity", The New York Times, Mar. 10, 1987.
Article in Asahi Newspaper, Mar. 10, 1987.
Vol. 26, No. 4, Apr., 1987, pp. L334-L336, "Preparation of a High Tc Superconductor by Oxidization of an Amorphous Lal.8Sr0.2Cu Alloy Ribbon in Air", Matsuzaki et al., Japanese J. Appl. Physics.
"Formation of Perovskite Surface Layers by Oxidation of Cu-La-Sr Alloys", Gruen et al., J. Electrochem. Soc., 1987, pp. 1588-1589, vol. 134, No. 6.
"Glassy Yb.17Ba.33Cu.50 Alloy as Precursor for the High-Tc Oxide Superconductor Yb1Ba2Cu30x", Lu et al., Mat. Lett., Acc. Jun. 1987.
Haldar et al., "EuBa2Cu30x Produced by Oxidation of a Rapidly Solidified Precursor Alloy: An Alternative Preparation Method for High-Tc Ceramic Superconductors".
Ohio State University, Invention Disclosure Sheet, Dec. 26, 1970, Rapp, "Process for Producing Interwoven Two-Phase Materials and Their Use to Produce Porous Metals and Compounds".

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