Pinning Force Anisotropy for HTS Wires

Article Preview

Abstract:

We investigate the pinning force anisotropy for BSCCO and YBCO commercial wires at 77 K. The pinning force is measured to 3 T and for all field angles. We show that the magnitude of the pinning force maximum as a function of applied field angle follows known statistical functions. The position of the maximum with field also follows these functions. This is a step towards a Dew-Hughes type scaling covering field, field angle and temperature for HTS wire.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

7-10

Citation:

Online since:

September 2011

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2012 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] S. Fleshler, D. Buczek, B. Carter, P. Cedrone, K. DeMoranville, et al, Scale-up of 2G wire manufacturing at American Superconductor Corporation, Physica C 469 (2009) 1316-1321

DOI: 10.1016/j.physc.2009.05.234

Google Scholar

[2] J.W. Ekin, Unified scaling law for flux pinning in practical superconductors: I. Separability postulate, raw scaling data and parameterization at moderate strains, Supercond. Sci. Technol. 23 (2010) 083001

DOI: 10.1088/0953-2048/23/8/083001

Google Scholar

[3] E.J. Kramer, Scaling laws for flux pinning in hard superconductors, J. Appl. Phys. 44 (1973) 1360-1370

DOI: 10.1063/1.1662353

Google Scholar

[4] D. Dew-Hughes, Flux pinning mechanisms in type II superconductors, Phil. Mag. 30 (1974) 293-305

DOI: 10.1080/14786439808206556

Google Scholar

[5] X.J. Xu, J. Fang, X.W. Cao and K. Li, A scaling formula of critical current density for anisotropic superconductors, J. Phys. D: Appl. Phys. 29 (1996) 2473–2475

DOI: 10.1088/0022-3727/29/9/036

Google Scholar

[6] N.J. Long, Model for the angular dependence of critical currents in technical superconductors, Supercond. Sci. Technol. 21 (2008) 025007

DOI: 10.1088/0953-2048/21/02/025007

Google Scholar

[7] J.L. Tallon, R.G. Buckley, P.W. Gilberd, M.R. Presland, I.W.M. Brown, M.E. Bowden, L.A. Christian and R. Goguel, High-Tc superconducting phases in the series Bi2.1(Ca, Sr)n+lCunO2n+4+δ, Nature 333 (1988) 153-156.

DOI: 10.1038/333153a0

Google Scholar