| 摘要 |
A multifilamentary superconductor having a large number of NbTi filaments in an aluminum alloy matrix which is stabilized by a high-purity aluminum sheath is disclosed, together with the method of its manufacture. An Al alloy billet having a number of NbTi rods disposed therein is extruded. A superpure Al sheath is added; this product is then enclosed in copper and wiredrawn after which the copper is etched off.
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