Abstract
The discovery of high temperature superconducting (HTS) Y-Ba-Cu-O ceramics, with a transition temperature above that of liquid nitrogen1, issued the challenge to produce Y-Ba-Cu-O based conductors for practical usage. One of the first methods developed to produce the brittle intermetallic compound-based superconductors, was to deform the Y-Ba-Cu-O powder in a ductile can2. This method was employed to produce wire specimens based on A15 compounds (Nb3Sn)2, NaCl-(NbN)3,4, and Chevrelphases (PbMo6S8)5. The deformation stability problem of such conductors is not related to the crystallographic structure or the superconducting properties of an enclosed powder but is rather determined by factors such as powder dispersivity, mechanical properties of the canning material and the ratio between the canning and the powder-core areas4,6.
Consideration is given to the interaction of Y-Ba-Cu-O compounds and copper in a single filament YBa2Cu3O7−x powder conductor. The structure and composition of a HTS compound is shown to change, depending on the heat treatment conditions within 400 – 900 °C. It is shown that there is no diffusion-induced redistribution of metal atoms in the ceramics-copper interaction zone after annealing at a temperature of up to 900 °C.
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References
M. K. Wu, J. R. Ashburn, C. J. Torng, P. H. Hor, P. L. Meng, L. Gao, Z. J. Huang, Y. Q. Wang, C. W. Chu: Phys. Rev. Lett. 58, 908 (1987)
E. M. Savitzky, J. F. Efimov, N. D. Kozlov, B. P. Michailov, L. F. Myzenkova, E. D. Doron,kich: “Superconducting Materials”, M. Metallurgia (1976)
Patent USA N 4411953
E. M. Savitsky, V. V. Baron: “Powder metallurgy and superconducting materials” in “I. P. Bardeen and national metallurgy”
T. S. Luhman, O. Horigami, D. Dew-Hughes: Bull. Amer. Phys. Soc. 20, 343 (1975)
V. F. Suchkov, V. I. Svetlova, E. E. Finkel: “Thermoresistable cables with magnesia insulation”, M. Energia 1969, p. 96
A. S. Nikiforov, A. D. Nikulin, V. J. Fil’kin, N. V. Shishkov, I. I. Davydov, A. K. Shikov, E. V. Antipova, N. A. Chernoplekov, E. J. Klimenko: “La-Sr-Cu-O and Y-Ba-Cu-O composite superconductors”, M. Atomnaya Energia 63, 421 (1987)
N. M. Michailov, M. N. Smirnova, I. N. Groznov, V. A. Zhorin: “High pressure and deformation modification of structure and superconducting temperature of A-15 compounds”, Proceedings of the 2nd scientific meeting on “Metallophysics of superconductors”, 1983, Kiev, 134–135
T. Luhman, D. Dew-Hughes: J. Appl. Phys. 49, 936 (1978)
A. D. Nikulin, V. A. Kovaleva, E. G. Kasakov, A. I. Skvortsov, V. I. Panzirny, V. A. Vargin: “Investigation of interaction between Cu-Sn alloy melts and Nb Sn layer”, Proceedings of the 2nd scientific meeting on “Metallophysics of superconductors” 1983, Kiev, 268–269
Y. Takagi, R. Liang, Y. Inaguma, T. Nakamura: Jpn. J. App. Phys. 26, 1266 (1987)
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© 1988 Springer Science+Business Media New York
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Nikulin, A.D. et al. (1988). Studies of HTS Ceramics-Copper Interaction. In: Weber, H.W. (eds) High-T c Superconductors. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-0846-9_44
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DOI: https://doi.org/10.1007/978-1-4899-0846-9_44
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