Influences of cracking of coated superconducting layer on voltage-current curve, critical current, and n -value in DyBCO-coated conductor pulled in tension

Influences of cracking of coating layer under applied tensile strain on V ( voltage ) - I ( current ) curve, critical current, and n -value of DyBa 2 Cu 3 O 7 − δ coated conductor were studied experimentally and analytically. The experimentally measured variations in V - I curve, critical current, a...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Journal of applied physics 2010-09, Vol.108 (6), p.063905-063905-8
Hauptverfasser: Ochiai, S., Arai, T., Toda, A., Okuda, H., Sugano, M., Osamura, K., Prusseit, W.
Format: Artikel
Sprache:eng
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Influences of cracking of coating layer under applied tensile strain on V ( voltage ) - I ( current ) curve, critical current, and n -value of DyBa 2 Cu 3 O 7 − δ coated conductor were studied experimentally and analytically. The experimentally measured variations in V - I curve, critical current, and n -value with increasing applied strain and the correlation of n -value to critical current were described well by the partial crack-current shunting model of Fang Also, the variations in the ratio of shunting current to overall critical current and the ratio of voltage developed in the cracked region to overall voltage with extension of crack, and the variation in critical current with the ratio of noncracked area to overall cross-sectional area of superconducting layer were revealed.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.3488014