M Al-Jawad
Kinetic neutron diffraction study of Nb3Sn phase formation in superconducting wires
Al-Jawad, M; Manuel, P; Ritter, C; Kilcoyne, SH
Authors
P Manuel
C Ritter
SH Kilcoyne
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.
Citation
Al-Jawad, M., Manuel, P., Ritter, C., & Kilcoyne, S. (2006). Kinetic neutron diffraction study of Nb3Sn phase formation in superconducting wires. Journal of Physics: Condensed Matter, 18(4), 1449-1457. https://doi.org/10.1088/0953-8984/18/4/028
Journal Article Type | Article |
---|---|
Publication Date | Feb 1, 2006 |
Deposit Date | Aug 22, 2007 |
Journal | Journal of Physics: Condensed Matter |
Print ISSN | 0953-8984 |
Publisher | IOP Publishing |
Peer Reviewed | Peer Reviewed |
Volume | 18 |
Issue | 4 |
Pages | 1449-1457 |
DOI | https://doi.org/10.1088/0953-8984/18/4/028 |
Publisher URL | http://dx.doi.org/10.1088/0953-8984/18/4/028 |
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