Scaling the reversible strain response ofMgB2 conductors

M Dhallé; H van Weeren; S Wessel; A den Ouden; H H J ten Kate; I Hušek; P Kováč; S Schlachter; W Goldacker

doi:10.1088/0953-2048/18/12/006

Superconductor Science and Technology

Scaling the reversible strain response of MgB₂ conductors

M Dhallé¹, H van Weeren¹, S Wessel¹, A den Ouden¹, H H J ten Kate¹, I Hušek², P Kováč², S Schlachter³ and W Goldacker³

Published 4 November 2005 • IOP Publishing Ltd
Superconductor Science and Technology, Volume 18, Number 12 Citation M Dhallé et al 2005 Supercond. Sci. Technol. 18 S253 DOI 10.1088/0953-2048/18/12/006

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Author affiliations

¹ Low Temperature Division, Faculty of Science and Technology, University of Twente, PO Box 217, 7500AE Enschede, The Netherlands

² Institute of Electrical Engineering, Slovak Academy of Sciences, Dúbravska cesta 9, 842 39 Bratislava, Slovakia

³ Forschungszentrum Karlsruhe, Institut für Technische Physik, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany

Dates

Received 29 July 2005
Published 4 November 2005

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Abstract

The reversible axial strain dependence of the critical current of MgB₂ conductors is shown to vary with the temperature and magnetic field. The measured critical temperature and irreversibility field are also found to change reversibly with the axial strain. Combining these effects, we show empirically how the strain dependence of the whole critical surface can be scaled with just three parameters: the strain dependences of its three corner points.

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Scaling the reversible strain response of MgB2 conductors