Field percolation and high current density in 80/20 DyBa2Cu3O7-x/Dy2BaCuO5 bulk magnetically textured composite ceramics

Cloots, Rudi; Dang, An; Vanderbemden, Philippe; Vanderschueren, André; Bougrine, Hassan; Vanderschueren, Hyacinthe; Rulmont, André; Ausloos, Marcel

doi:10.1007/s002570050160

Article (Scientific journals)

Field percolation and high current density in 80/20 DyBa2Cu3O7-x/Dy2BaCuO5 bulk magnetically textured composite ceramics

Cloots, Rudi; Dang, An; Vanderbemden, Philippe et al.

1996 • In Zeitschrift für Physik. B, Condensed Matter, 100 (4), p. 551-555

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DOI
10.1007/s002570050160

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Keywords :

AC susceptibility; high-Tc superconductors; critical current

Abstract :

[en] We measured the AC susceptibility of magnetically textured (123) 80%/211(20%) DyBaCuO composite in a special set-up in order to enhance the intergrain contribution. The synthesis process led to very clean ''weak links'' at grain boundaries. At the percolation threshold bulk shielding paths were such that the intergrain critical current density J(c) was above 10(5) A/cm(2). The field dependence of J(c) was understood through an analytical form indicating a distribution of currents similar to the law of clusters at fracture/percolation thresholds.

Research Center/Unit :

SUPRATECS - Services Universitaires pour la Recherche et les Applications Technologiques de Matériaux Électro-Céramiques, Composites, Supraconducteurs - ULiège

Disciplines :

Physics

Author, co-author :

Cloots, Rudi ; Université de Liège - ULiège > Département de chimie (sciences) > Chimie inorganique structurale - Doyen de la Faculté des Sciences

Dang, An

Vanderbemden, Philippe ; Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Capteurs et systèmes de mesures électriques

Vanderschueren, André

Bougrine, Hassan ; Université de Liège - ULiège > CARE "Le Réseau des bibliothèques" > Bibliothèque des Sciences et Techniques

Vanderschueren, Hyacinthe ; Université de Liège - ULiège > Services généraux (Faculté des sciences appliquées) > Relations académiques et scientifiques (Sciences appliquées)

Rulmont, André ; Université de Liège - ULiège > Département de chimie (sciences) > Département de chimie (sciences)

Ausloos, Marcel ; Université de Liège - ULiège > Département de physique > Physique statistique appliquée et des matériaux - S.U.P.R.A.S.

Language :

English

Title :

Field percolation and high current density in 80/20 DyBa2Cu3O7-x/Dy2BaCuO5 bulk magnetically textured composite ceramics

Publication date :

1996

Journal title :

Zeitschrift für Physik. B, Condensed Matter

ISSN :

0722-3277

eISSN :

1431-584X

Publisher :

Springer Verlag, New York, United States - New York

Volume :

100

Issue :

Pages :

551-555

Peer reviewed :

Peer Reviewed verified by ORBi

Additional URL :

http://springerlink.metapress.com/content/hxcu32a7x3gubp38/?p=49b220441458464b8539f773c61f926d&pi=9

Funders :

F.R.S.-FNRS - Fonds de la Recherche Scientifique
FWB - Fédération Wallonie-Bruxelles
SSTC - Services Fédéraux des Affaires Scientifiques, Techniques et Culturelles

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