Cart (Loading....) | Create Account
Close category search window

Theory of current-direction dependence of normal-zone propagation velocity in multifilamentary composite conductors

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Clem, J.R. ; Ames Laboratory, Iowa State University, Ames, Iowa ; Bartlett, R.J.

We develop a theory for the current-direction dependence of the normal-zone propagation velocity observed in multifilamentary composite superconductors. Normal-zone propagation is known to be driven primarily by Joule heating in both the normal zone and the current-sharing zone, which lies between the normal (T>Tc) and superconducting (I<Ic) zones. We show, however, that the Peltier effect is an important secondary source of heating and cooling in the current-sharing zone and accounts for essentially all of the current-direction dependence of the normal-zone propagation velocity observed in a Nb3Sn/Cu composite conductor. For one current direction Peltier heat is deposited in the current-sharing zone, thereby adding to the Joule heat and increasing the normal-zone propagation velocity, while for the other current direction Peltier heat is absorbed, thereby cooling the current-sharing zone and thus decreasing the normal-zone propagation velocity. Contrary to the claim of Gurevich and Mints, we find that the Thomson effect is about an order of magnitude too small to account for the current-direction dependence observed in a Nb3Sn/Cu composite conductor.

Published in:

Magnetics, IEEE Transactions on  (Volume:19 ,  Issue: 3 )

Date of Publication:

May 1983

Need Help?

IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.