Superconductor technology: apparatus – material – process – Processes of producing or treating high temperature... – Shaping or consolidating
Patent
1993-02-24
1994-09-06
Lieberman, Paul
Superconductor technology: apparatus, material, process
Processes of producing or treating high temperature...
Shaping or consolidating
423593, 505725, 505742, 505491, 505500, 505501, C01F 1102, C01G 302, H01L 3924
Patent
active
053448162
ABSTRACT:
High temperature superconducting oxide materials can be taken to a higher, but stable, state of oxidation by removing H-impurities, such as OH.sup.-, using I.sub.2 /O.sub.2 mixtures in a reactive atmosphere process. A higher T.sub.c and a narrower .DELTA.T-transition result.
REFERENCES:
patent: 4409260 (1983-10-01), Pastor et al.
patent: 4429009 (1984-01-01), Pastor et al.
patent: 4462970 (1984-07-01), Pastor et al.
patent: 4462974 (1984-07-01), Pastor et al.
patent: 4465656 (1984-08-01), Pastor et al.
patent: 4916116 (1990-04-01), Yamazaki
patent: 4929598 (1990-05-01), Bagley et al.
patent: 4942152 (1990-07-01), Itozaki et al.
patent: 5079217 (1992-01-01), Leary
Patent Abstracts of Japan, vol. 13, No. 199(C-594) May 11, 1989 & JP,A1018970 (Fujikura Ltd) Jan. 23, 1989.
Patent Abstracts of Japan, vol. 13, No. 224 (C-599) May 24, 1989 & JP,A1037464 (Fujikura Ltd) Feb. 8, 1989.
Database WPIL, Weel 8912, Derwent Publ., Ltd., London GB; AN 89-088420, & JP,A,1037424 (Fujikura CableWorks KK) Feb. 8, 1989.
Patent Abstracts of Japan, vol. 13, No. 29 (C-562) Jan. 23, 1989, & JP,A,63233066 (Fujikura Ltd) Sep. 28, 1988.
Mat. Res. Bull., vol. 16, 1981, pp. 1413-1420, R. C. Pastor, et al., "Reactive Atmosphere Processing of Oxides".
CRC Handbook of Chemistry and Physics, 63rd Edition, Weast (Editor), 1982-83, p. B-21.
Hazen, et al., Physical Review Letters, vol. 60, No. 12, Mar. 21, 1988, "Superconductivity in the High-T.sub.c Bi--Ca--Sr--Cu--O System: Phase Identification", pp. 1174-1177.
Khairullin et al., "Low temperature microwave response of yttrium barium copper oxide superconductors: narror resonance-like peak in ESR", Inst. Nucl. Phys., Synth. Met., vol. date 1988, 29(2-3), Chemical Abstract.
Osi'yan, et al., "Observation of superconductivity in yttrium barium copper oxide ceramics doped with bromine and iodine", Inst. Fiz. Tverd. Tela, Pis'ma Zh. Eksp. Teor. Fiz., 49(1), Chemical Abstract 1989.
D. P. Devor et al, "Hydroxyl impurity effects in YAG(Y.sub.3 Al.sub.5 O.sub.12)", Journal of Chemical Physics, vol. 81 (No. 9), pp. 4104-4117 (1984).
L. E. Gorre et al, "Hydrogen impurities inoxides and halides", Materials Research Bulletin, vol. 20, pp. 1441-1451 (1985).
R. C. Pastor et al, "Reactive atmosphere processing of oxides", Materials Research Bulletin, vol. 16, pp. 1413-1420 (1981).
R. C. Pastor et al, "Crystal growth in a reactive atmosphere", Materials Research Bulletin, vol. 10, pp. 117-124 (1975).
R. Dagani, "New Super-conductor", Chemical and Engineering News, p. 4 (Feb. 15, 1988).
R. C. Pastor et al, "Impurity-conditioned solid-solid transition in simple halides", Materials Research Bulletin, vol. 9, pp. 569-578 (1974).
Fuller Keith C.
Gorre, deceased Luisa E.
Pastor Ricardo C.
Pastor, deceased Antonio C.
Boyd John
Denson-Low W. K.
Duraiswamy V. D.
Hughes Aircraft Company
Lieberman Paul
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