Effect of Excess Ca and Cu or Ca and Pb on the Superconducting and Electrical Properties of Bi-2223 Ceramics Full article
Journal |
Inorganic Materials
ISSN: 0020-1685 , E-ISSN: 1608-3172 |
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Output data | Year: 1998, Volume: 34, Number: 10, Pages: 1074-1079 Pages count : 6 | ||||
Tags | CRITICAL CURRENT-DENSITY; O SYSTEM; WIRES; Ca2CuO3; DEFECTS | ||||
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Abstract:
The effect of excess Ca and Cu or Ca and Pb on the superconducting and electrical properties of Bi-2223 ceramics was studied. The excess cations were added either to the starting charge or, in the form of presynthesized Ca2CuO3 and Ca2PbO4, to single-phase Bi-2223. The resultant materials were characterized by x-ray diffraction, critical current density, magnetoresistance, and Hall effect measurements. Microstructures were examined by scanning electron microscopy. The properties of the samples were found to depend on the type and content of excess cations and the way in which they were introduced. Small amounts of excess Ca and Cu added to the starting mixture change the electrical properties of the ceramics and improve their superconducting properties, producing a microstructure with a dense network of intergranular superconducting contacts, favorable for enhanced current-carrying capacity.
Cite:
Kravchenko V.S.
, Zhuravleva M.A.
, Uskov E.M.
, Bezverkhii P.P.
, Bogolyubov N.A.
, Potapova O.G.
, Makarshin L.L.
Effect of Excess Ca and Cu or Ca and Pb on the Superconducting and Electrical Properties of Bi-2223 Ceramics
Inorganic Materials. 1998. V.34. N10. P.1074-1079. WOS Scopus РИНЦ
Effect of Excess Ca and Cu or Ca and Pb on the Superconducting and Electrical Properties of Bi-2223 Ceramics
Inorganic Materials. 1998. V.34. N10. P.1074-1079. WOS Scopus РИНЦ
Original:
Кравченко В.С.
, Журавлева М.А.
, Усков Е.М.
, Безверхий П.П.
, Боголюбов Н.А.
, Потапова О.Г.
, Макаршин Л.Л.
Влияние избытка Ca, Cu и Ca, Pb на сверхпроводящие и электрофизические свойства керамик Bi-2223
Неорганические материалы. 1998. Т.34. №10. С.1274-1280. РИНЦ
Влияние избытка Ca, Cu и Ca, Pb на сверхпроводящие и электрофизические свойства керамик Bi-2223
Неорганические материалы. 1998. Т.34. №10. С.1274-1280. РИНЦ
Dates:
Submitted: | Nov 20, 1996 |
Published print: | Oct 1, 1998 |
Identifiers:
Web of science | WOS:000076720300023 |
Scopus | 2-s2.0-2542519429 |
Elibrary | 13303821 |
Chemical Abstracts | 1998:717781 |
Chemical Abstracts (print) | 130:9450 |