BENDING EFFECTS ON CRITICAL CURRENTS OF Nb[sub 3]Sn SUPERCONDUCTING WIRES | Zendy

M. Takayasu | Zendy; L. Chiesa | Zendy; J.H. Schultz | Zendy; J.V. Minervini | Zendy; U. Balachandràn | Zendy

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BENDING EFFECTS ON CRITICAL CURRENTS OF Nb[sub 3]Sn SUPERCONDUCTING WIRES

Author(s) -

M. Takayasu,

L. Chiesa,

J.H. Schultz,

J.V. Minervini,

U. Balachandràn

Publication year - 2010

Publication title -

aip conference proceedings

Language(s) - English

Resource type - Conference proceedings

eISSN - 1551-7616

pISSN - 0094-243X

DOI - 10.1063/1.3402307

Subject(s) - superconductivity , materials science , bending , critical current , breakage , protein filament , current (fluid) , superconducting wire , composite material , condensed matter physics , physics , thermodynamics

Bending effects on Nb3Sn wires have been investigated to understand the critical current degradation of large Nb3Sn superconducting cables. An integrated model taking into account the neutral axis shift, the current transfer length, the mechanical filament breakage and the uniaxial strain release due to applying bending has been developed for a Nb3Sn wire. Five different Nb3Sn wires developed by the ITER parties were tested. The experimental data are presented and analyzed with a newly developed integrated model. The current transfer effect appears to be an important factor.

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