THE INCREASE OF PINNING IN (BI, PB)2SR2CA2CU3O10+D BULK CERAMICS

Authors
MAJEWSKI P ELSCHNER S HETTICH B LANG C KAESCHE S ALDINGER F
Citation
P. Majewski et al., THE INCREASE OF PINNING IN (BI, PB)2SR2CA2CU3O10+D BULK CERAMICS, Superconductor science and technology, 7(7), 1994, pp. 514-517
Citations number
14
Categorie Soggetti
Physics, Applied","Physics, Condensed Matter
Journal title
Superconductor science and technology → ACNP
ISSN journal
09532048
Volume
7
Issue
7
Year of publication
1994
Pages
514 - 517
Database
ISI
SICI code
0953-2048(1994)7:7<514:TIOPI(>2.0.ZU;2-3
Abstract
Considering the phase equilibrium diagram of the Bi2O3-PbO-SrO-CaO-CuO system, ceramics of the 2223 phase with the composition Bi1.8Pb0.4Sr2 Ca2CU3O10+d have been transformed by a simple annealing procedure into multi-phase samples. The transformation results in a four-fold increa se of the critical current density at 2 T and 30 K (three-fold at 1 T and 50 K), which is believed to express an enhanced pinning capacity o f the material. The nature of the pinning centres produced is not yet clarified.