Title :
Microstructure and electrophysical properties of Ca,Cu enriched Bi-2223 HTSC ceramics
Author :
Kravtchenko, V.S. ; Zhuravleva, M.A. ; Uskov, Ye.M. ; Bezverkhy, P.P. ; Bogolyubov, N.A. ; Kopylov, A.V.
Author_Institution :
Inst. of Inorg. Chem., Acad. of Sci., Novosibirsk, Russia
Abstract :
The effect of excess of Ca and Cu on superconducting and electrophysical properties of Bi-2223 ceramics was investigated. It was found that a certain excess of Ca and Cu in the nominal composition with relation to the stoichiometric one improves the superconductive properties of the ceramics which results from the developing of dense net of intergranular contacts during formation of ceramics microstructure
Keywords :
bismuth compounds; calcium compounds; ceramics; crystal microstructure; high-temperature superconductors; stoichiometry; strontium compounds; Bi-2223 HTSC ceramic; Bi2Sr2Ca2Cu3O; electrophysical properties; microstructure; stoichiometry; superconducting properties; Ceramics; Charge carriers; Conductivity; Critical current density; Gravity; Magnetic materials; Magnetoresistance; Microscopy; Microstructure; Temperature dependence;
Conference_Titel :
Electronic Instrument Engineering Proceedings, 1998. APEIE-98. Volume 1. 4th International Conference on Actual Problems of
Conference_Location :
Novosibirsk
Print_ISBN :
0-7803-4938-5
DOI :
10.1109/APEIE.1998.769000
