TITLE

Diffusion and growth mechanism of Nb3Sn superconductor grown by bronze technique

AUTHOR(S)
Laurila, T.; Vuorinen, V.; Kumar, A. K.; Paul, A.
PUB. DATE
June 2010
SOURCE
Applied Physics Letters;6/7/2010, Vol. 96 Issue 23, p231910
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The rather surprising position of the Kirkendall pores in Nb3Sn superconductor grown by bronze technique is clarified. It is shown that Sn is the fastest diffusing species, which seems to be unusual considering the crystal structure of Nb3Sn. Further, we explain the dramatic change in the growth rate and the activation energy for growth of the product phase, when the Sn composition in the Cu(Sn) bronze alloy is changed from 7 to 8 at. %.
ACCESSION #
51378936

 

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