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Chemical composition, microstructure and physical properties of magnetically melt-textured bulk Bi2Sr2Ca0.8Dy0.2Cu2O8-y superconducting ceramics
Stassen, Sophie; Cloots, Rudi; Vanderschueren, André et al.
1996 • In Balachandran, U.; McGinn, P. J.; Abell, J. S. (Eds.) High Temperature Superconductors: Synthesis, Processing, and Large-Scale Applications.
Peer reviewed
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Keywords :
critical current; Bi-2212 compounds; AC susceptibility
Abstract :
[en] Dysprosium doped Bi-based 2212 ceramics were synthesized by a melt-texturing growth process in a 1.2 T magnetic field, applied perpendicularly to the main axis of a cylindrical shape sample. Four well oriented and chemically defined phases forming successive layers were observed and characterized by X-ray diffraction, scanning electron microscopy and energy dispersive X-ray analysis. The origin and composition of such layers is described. A novel aspect is the calcium solubility at the strontium site in 2212 phases, and the strontium solubility at the calcium site in 8250 structures. The texturing process was optimized with respect to the sample electrical resistivity and ac magnetic susceptibility. The critical current density was then evaluated.
Research Center/Unit :
SUPRATECS - Services Universitaires pour la Recherche et les Applications Technologiques de Matériaux Électro-Céramiques, Composites, Supraconducteurs - ULiège
Disciplines :
Electrical & electronics engineering
Chemistry
Author, co-author :
Stassen, Sophie
Cloots, Rudi ;  Université de Liège - ULiège > Département de chimie (sciences) > Chimie inorganique structurale - Doyen de la Faculté des Sciences
Vanderschueren, André
Vanderbemden, Philippe  ;  Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Capteurs et systèmes de mesures électriques
Ausloos, Marcel ;  Université de Liège - ULiège > Département de physique > Département de physique
Language :
English
Title :
Chemical composition, microstructure and physical properties of magnetically melt-textured bulk Bi2Sr2Ca0.8Dy0.2Cu2O8-y superconducting ceramics
Publication date :
1996
Event name :
Proceedings of TMS Annual Meeting on High Temperature Superconductors: Synthesis, Processing, and Large-Scale Applications
Event organizer :
TMS - Miner. Metals. & Mater. Soc
Event place :
Anaheim, CA, United States
Event date :
4-8 February 1996
Audience :
International
Main work title :
High Temperature Superconductors: Synthesis, Processing, and Large-Scale Applications.
Editor :
Balachandran, U.
McGinn, P. J.
Abell, J. S.
Publisher :
TMS, Warrendale, United States
ISBN/EAN :
0 87339 326 0
Pages :
177-186
Peer reviewed :
Peer reviewed
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique
SSTC - Services Fédéraux des Affaires Scientifiques, Techniques et Culturelles
FWB - Fédération Wallonie-Bruxelles
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