The effect of strain on the critical-current density of Cu-Nb composites
Document Type
Article
Publication Date
12-1-1987
Abstract
Microfilamentary superconducting composites of Nb fibers in Cu matrices prepared by the stack and draw method were tested for tensile critical-current performance at 4.2 K. The superconducting critical-current densities increased exponentially under the influence of an applied mechanical strain until the onset of Nb fiber plastic deformation. In the elastic range, the critical-current densities conformed to log10 J c =m (strain)+b. In several tests the critical current was increased by more than an order of magnitude by the applied strain. This behavior is consistent with an increase in the upper critical field of the Nb fibers by the applied stress.
Publication Title
Journal of Applied Physics
Recommended Citation
Klein, J.,
&
Rose, R.
(1987).
The effect of strain on the critical-current density of Cu-Nb composites.
Journal of Applied Physics,
61(8), 2979-2982.
http://doi.org/10.1063/1.337847
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/8894
