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Electrochemical synthesis of Nb<sub>3</sub>Sn coatings on Cu substrates [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy. High Energy Physics Division, 2015.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
Physical Description
pages 613-615 : digital, PDF file
Additional Creators
Fermi National Accelerator Laboratory, United States. Department of Energy. High Energy Physics Division, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
This study aims at contributing to the development of superconducting Nb3Sn thin films for possible applications, as for instance in superconducting radio frequency (SRF) cavities. The synthesis of Nb-Sn coatings was carried out on copper substrates by electrodeposition from 1-Butyl-3-methylimidazolium chloride (BMIC) ionic liquids containing SnCl2 and NbCl5. Cyclic voltammetric curves were recorded to identify the reduction potentials of Nb and Sn ionic species. Electrodeposition was performed at 40 and 400 mA/cm2 and 130°C. The CV demonstrated that BMIC has a suitable potential window for co-deposition of Nb and Sn. The electrodeposited coatings showed a cubic Nb3Sn phase with (211) preferred orientation, a disordered orthorhombic NbSn2 phase and Sn-Cu phases. Film thickness was from 200 to 750 nm. These results suggest that electrodeposition of Nb-Sn coatings on copper substrates could be a suitable route to one day replace the current expensive Nb SRF cavities.
Report Numbers
E 1.99:fermilab-pub--15-400-td
fermilab-pub--15-400-td
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Note
Published through SciTech Connect.
09/11/2015.
"fermilab-pub--15-400-td"
Materials Letters 161 C ISSN 0167-577X AM
S. Franz; E. Barzi; D. Turrioni; L. Glionna; M. Bestetti.
Funding Information
AC02-07CH11359
View MARC record | catkey: 24094473