STRAIN EFFECT ON TRANSPORT PROPERTIES OF Nb3Sn MULTIFILAMENT STRANDS PREPARED BY INTERNAL TIN ROUTE |
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| Authors: | LIANG Ming ZHANG Pingxiang TANG Xiande LI Jinshan LU Yafeng ZHOU Lian |
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| Affiliation: | 1. State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710016
2. Northwest Institute for Nonferrous Metal Research, Xi’an 710016
3. Western Superconducting Technologies Co., Ltd., Xi’an 710016 |
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| Abstract: | Characteristic curves of critical current–strain (Ic–ε) of internal tin processed Nb3Sn strands were measured in the axial strain ranged from −0.9% (compressive) to +0.6% (tensile) at 4.2 K and 12 T by the Pacman spring. The scaling law between critical current and axial strain was simulated
with the improved deviatoric scaling model (the DEV model). The degradation of the superconducting critical current and the change of n value induced by strain were analyzed. The strain sensitivities of Ic were compared for the strands prepared by different processes. |
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| Keywords: | " target="_blank">3Snzz')" href="#"> Nb3Sn internal tin process axial strain deviatoric scaling (DEV) model |
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