Microstructure and superconducting properties of TaC-doped bi-2223 ceramicsстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:The microstructure, phase composition, and superconducting properties of Bi-2223 ceramics doped with 0.05-0.5 wt % TaC were investigated. The materials were heat-treated at 840 degreesC in three steps (10 + 24 + 24 h). By optimizing the TaC content and heat-treatment conditions, the 77-K critical current density of the Bi-2223 ceramics in zero field was raised by a factor of 2.