Microstructure and superconducting properties of TaC-doped bi-2223 ceramics

Authors
Mikhailov, BP Burkhanov, GS Kazin, PE Lennikov, VV Shavkin, SV Laskova, GV Titov, AA
Citation
Bp. Mikhailov et al., Microstructure and superconducting properties of TaC-doped bi-2223 ceramics, INORG MATER, 37(11), 2001, pp. 1199-1205
Citations number
9
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
INORGANIC MATERIALS
ISSN journal
00201685 → ACNP
Volume
37
Issue
11
Year of publication
2001
Pages
1199 - 1205
Database
ISI
SICI code
0020-1685(200111)37:11<1199:MASPOT>2.0.ZU;2-L
Abstract
The microstructure, phase composition, and superconducting properties of Bi -2223 ceramics doped with 0.05-0.5 wt % TaC were investigated. The material s were heat-treated at 840 degreesC in three steps (10 + 24 + 24 h). By opt imizing the TaC content and heat-treatment conditions, the 77-K critical cu rrent density of the Bi-2223 ceramics in zero field was raised by a factor of 2.