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Study on the Growth of Nb3Sn Superconductor in Cu(Sn)/Nb Diffusion Couple

Kumar, AK and Laurila, T and Vuorinen, V and Paul, A (2010) Study on the Growth of Nb3Sn Superconductor in Cu(Sn)/Nb Diffusion Couple. In: 5th International Conference on Diffusion in Solids and Liquids, JUN 24-26, 2009, Rome.

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Official URL: http://www.scientific.net/DDF.297-301.467

Abstract

Nb3Sn growth following the bronze technique, (i.e. by interdiffusion between Cu(Sn) alloy (bronze) and Nb) is one of the important methodologies to produce this superconductor. In this study, we have addressed the confusion over the growth rate of the Nb3Sn phase. Furthermore, a possible explanation for the corrugated layer in the multifilamentary structure is discussed. Kirkendall marker experiments were conducted to study the relative mobilities of the species, which also explained the reason for finding pores in the product phase layer. Based on the parabolic growth constant at different temperatures, the activation energy for the growth is determined. We have further explained the dramatic increase in the growth rate of the prod

Item Type: Conference Paper
Publisher: Trans Tech Publications Inc
Additional Information: Copyright of this article belongs to Trans Tech Publications Inc.
Keywords: Diffusion, Kirkendall Porosity, Nb3Sn, Superconductor
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 08 Sep 2010 11:35
Last Modified: 08 Sep 2010 11:35
URI: http://eprints.iisc.ac.in/id/eprint/32090

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