Influence of copper location on stability of composites made of superconducting filaments in a highly resistive matrix
It is questionable as to where to place the stabilising normal metal in superconducting composites so as to ensure the best conditions for stability. In this paper two different composite structures are considered from the cryostability point of view. In one composite, the copper is concentrated around the axis of the wire and in the second, the copper is located in a peripheral shell. Special attention is paid to the detrimental effects of the highly resistive barriers on cryostability. In addition to the resulting radial temperature gradient, additional power is dissipated by the transverse currents circulating through the resistive matrix in the current sharing zones. Experimental results show how stability can be strongly influenced by the position of the stabilising copper.
Bibliographic Reference: Article: Cryogenics, Vol. 31 (1991) pp. 738-748
Record Number: 199111634 / Last updated on: 1994-12-02
Original language: en
Available languages: en