Modified Interconductor Contact Resistivity in Coated Conductor Stacks and Roebel Cables

Interconductor contact resistivity (ICR) is a key property in determining the stability and current sharing of coated conductor cables. Most coated conductor cables have relatively high contact resistivity and low current sharing as fabricated because of surface roughness and an oxide layer that for...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2020-06, Vol.30 (4), p.1-5
Main Authors: Kovacs, Chris J., Sumption, Mike D., Majoros, Milan, Collings, Edward W.
Format: Article
Language:English
Subjects:
Atmospheric measurements
Bonding
Cable insulation
Cables
Coating
Conductivity
Conductors
contact resistance
Copper
Current sharing
Diffusion layers
Diffusion welding
Electrical resistance measurement
Electrical resistivity
Engineering
high-temperature superconductors
Inserts
insulation
Low currents
Nanocomposites
Physics
Silver
Smart materials
Stacks
Superconducting materials
Surface layers
Surface roughness
Surface treatment
Temperature measurement
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Interconductor contact resistivity (ICR) is a key property in determining the stability and current sharing of coated conductor cables. Most coated conductor cables have relatively high contact resistivity and low current sharing as fabricated because of surface roughness and an oxide layer that forms on the Cu-stabilizer. Here we work to quantify the differences in using three methods to modify ICR: sample diffusion bonding, deposition surface modification, and thin conformable inserts. At first a stack of two coated conductors was used to simulate a cable. This stack was put under transverse pressure and exposed to moderate temperatures to promote diffusion bonding via the removal of the unstable Cu-oxide layer (
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2020.2966461