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

First Performance Test of Ceramic-insulated {\rm Nb}_{3}{\rm Sn} 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

5 Author(s)
Rochepault, E. ; CEA Saclay/IRFU/SACM, Gif-sur-Yvette, France ; de Rapper, W.M. ; Vedrine, P. ; Rondeaux, F.
more authors

An innovative ceramic insulation has been developed by CEA Saclay for Nb3Sn cables. As the ceramic cures during the heat treatment of the Nb3Sn, there is no need for an impregnation afterwards. This process eliminates the epoxy-impregnation steps which present the risk to damage the conductor. The porosity of this insulation is expected to increase the capacity of the heat extraction needed by the next magnets generation. However, in high field magnets, the transverse compressive stress on the cables can exceed 150 MPa, due to Lorentz forces. The effects of this high compressive stress on the critical current of Nb3Sn conductors has been investigated at CEA Saclay in collaboration with CERN using two experimental setups. This paper reports the first quench data measured on ceramic-insulated cables. The samples are compared to a witness sample in order to compute the degradation. It finally appears that the ceramic insulation gives a weaker mechanical support than epoxy-impregnation, leading to an additional degradation of the conductor. Some solutions are proposed to improve the mechanical strength of the ceramic.

Published in:

Applied Superconductivity, IEEE Transactions on  (Volume:22 ,  Issue: 3 )

Date of Publication:

June 2012

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.