Superconductor technology: apparatus – material – process – High temperature – per se – Having tc greater than or equal to 150 k
Patent
1991-12-02
1993-12-28
King, Roy
Superconductor technology: apparatus, material, process
High temperature , per se
Having tc greater than or equal to 150 k
505730, 505742, 427 62, 427446, 427453, B05D 108, B05D 512
Patent
active
052739570
ABSTRACT:
A process is described for producing a superconducting thick layer on a base material by thermally spraying a powder containing bismuth, lead, strontium, calcium and copper in oxidic form. First a powdered starting mixture is prepared which has a composition corresponding to the formula:
REFERENCES:
patent: 4687678 (1987-08-01), Lindblom
Fukushima et al, "Structural modulation and superconducting properties in Bi.sub.2-x Pb.sub.x Sr.sub.2 CaCu.sub.2 O.sub.8+d and Bi.sub.2-y Pb.sub.y Sr.sub.2 YCu.sub.2 O.sub.8+d ", Physica C 159 (1989) pp. 777-783.
Yoshida et al, "High-Tc Superconducting Films of Bi-Pb-Sr-Ca-Cu-O oxide prepared by plasma spraying", Jpn. J. Appl. Phys. 28(4) Apr. 1989 pp. L639-L642.
Karthikeyan et al, "Plasma sprayed superconducting YiBa.sub.2 Cu.sub.3 O.sub.7-x coatings" J. Phys. D:Appl. Phys. 21(1988) pp. 1246-1249.
Sankawa et al, "Superconductivity in YBa.sub.2 Cu.sub.3 O.sub.7-8 thick films by the atmospheric plasma powder spraying", Jpn. J. Appl. Phys. 27(6) Jun. 1988 pp. L1083-L1085.
Ohmori et al, "Formation of yttrium-barium-copper-oxygen system superconductor by thermal spraying", Trans. JWRI 20(1) 1991 pp. 53-60.
JA-A-2 125 854 (Kagaku Gijutsu-Cho Kinz), May 14, 1990.
Journal of American Ceramic Society, Bd. 73, No. 4, Apr. 1990, Columbus, US; pp. 889-892, F. -H. Chen et al., "Formation of High-T.sub.c Superconducting Bi-Pb-Sr-Ca-Cu oxide films by spray pyrolysis of an oxalate suspension".
Chemical Abstracts, Band 111, 1989, Columbus, Ohio, US; Zussamenfassung Nr. 204412F, T. Arima et al., "Optical spectra of bismut lead strontium calcium copper oxide", p. 644.
Junger Sabine
Morach Eugen
Schindler Hubert
Schwarz Martin
Hoechst Aktiengesellschaft
King Roy
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