Al-Jawad, M, Manuel, P, Ritter, C and Kilcoyne, SH 2006, 'Kinetic neutron diffraction study of Nb3Sn phase formation in superconducting wires' , Journal of Physics: Condensed Matter, 18 (4) , pp. 1449-1457.

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Abstract

The kinetics of Nb3Sn phase formation in commercial multifilamentary wires have been studied as a function of time and temperature using time-resolved, in situ neutron diffraction. This work shows that at higher temperatures the Nb3Sn phase forms in a fraction of the recommended annealing time. A temperature-independent Avrami exponent of n = 0.51 ± 0.01 was observed, indicating a diffusion-controlled growth mechanism, and a large apparent activation energy of Ea = 10 ± 1 eV is reported where the energies of nucleation and growth both contribute.

Item Type:	Article
Themes:	Subjects / Themes > Q Science > QC Physics Subjects outside of the University Themes
Schools:	Colleges and Schools > College of Science & Technology Colleges and Schools > College of Science & Technology > School of Computing, Science and Engineering Colleges and Schools > College of Science & Technology > School of Computing, Science and Engineering > Materials & Physics Research Centre
Journal or Publication Title:	Journal of Physics: Condensed Matter
Publisher:	Institute of Physics
Refereed:	Yes
ISSN:	09538984
Depositing User:	H Kenna
Date Deposited:	22 Aug 2007 14:02
Last Modified:	27 Sep 2011 12:21
URI:	http://usir.salford.ac.uk/id/eprint/306

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