Effect of Excess Ca and Cu or Ca and Pb on the Superconducting and Electrical Properties of Bi-2223 Ceramics | Sciact - CRIS-system of Boreskov Institute of Catalysis

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

Output data

Year: 1998, Volume: 34, Number: 10, Pages: 1074-1079 Pages count : 6

Tags

CRITICAL CURRENT-DENSITY; O SYSTEM; WIRES; Ca2CuO3; DEFECTS

Authors

Kravchenko V.S. ¹ , Zhuravleva M.A. ¹ , Uskov E.M. ¹ , Bezverkhii P.P. ¹ , Bogolyubov N.A. ¹ , Potapova O.G. ¹ , Makarshin L.L. ²

Affiliations

1	Institute of Inorganic Chemistry, Siberian Division, Russian Academy of Sciences, pr. akademika Lavrent'eva 3, Novosibirsk, 630090, Russian Federation
2	Boreskov Institute of Catalysis, Siberian Division, Russian Academy of Sciences, pr. akademika Lavrent'eva 5, Novosibirsk, 630090, Russian Federation

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.

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 ANCAN

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

Submitted:	Nov 20, 1996
Published print:	Oct 1, 1998

Web of science:	WOS:000076720300023
Scopus:	2-s2.0-2542519429
Elibrary:	13303821
Chemical Abstracts:	1998:717781
Chemical Abstracts (print):	130:9450

DB	Citing
Web of science	2
Scopus	1
Elibrary	1