The effect of hot isostatic pressing on the strain tolerance of thecritical current density found in modified jelly roll Nb(3)Snwires

The critical current density of Hot Isostatic Pressed (HIP'ed) and unHIP'ed Nb(3)Sn Modified Jelly Roll wires has been measured as a function of magnetic field and of strain at 4.2 K. The reversibility of critical current density was investigated for both wires. The critical current and up...

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Bibliographic Details
Published in:IEEE transactions on applied superconductivity 1999-06, Vol.9 (2), p.1447-1450
Main Authors: Keys, S A, Cheggour, N, Hampshire, D P
Format: Article
Language:English
Online Access:Get full text
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Summary:The critical current density of Hot Isostatic Pressed (HIP'ed) and unHIP'ed Nb(3)Sn Modified Jelly Roll wires has been measured as a function of magnetic field and of strain at 4.2 K. The reversibility of critical current density was investigated for both wires. The critical current and upper critical field were decreased for the HIP'ed sample. The reduced upper critical field of the HIP'ed wire was found to be less sensitive to strain than the unHIP'ed wire. The index (m) of the flux pinning scaling law is found to have increased from 0.86 to 2.14 as a result of the HIP processing
ISSN:1051-8223
DOI:10.1109/77.784662