Superconducting Wires for Magnet Applications

这个小企业创新研究第一阶段项目是由美国超导公司（ASC）提出的，目的是建立一种新的低成本工艺的可行性，以制造商业上可行的磁铁组件所需的坚固超导导线，这些磁铁组件能够在廉价制冷技术可以达到的温度下工作。高温超导导线在磁体组件中的大部分潜在大规模商业应用都需要在高达5特斯拉的磁场中，温度高于50 K时的高持续电流密度。提议的工艺是ASC及其合作伙伴首创的金属前驱体工艺的创新组合，用于经济生产坚固的高温超导线。第一阶段项目将建立金属前驱丝制造工艺的可行性，该工艺采用薄膜工艺中使用的纹理工艺，以获得高度排列的晶粒微观结构。金属前驱体合金固有的可成形性为制造复杂的、几何上精确的、化学上均匀的前驱体提供了独特的机会，类似于薄膜工艺中使用的前驱体。

This Small Business Innovation Research Phase I project is proposed by American Superconductor Corporation (ASC) to establish the feasibility of a novel, low-cost process for manufacturing the robust superconducting wires required for commercially viable magnet components capable of operating at temperatures that are accessible by inexpensive refrigeration technologies. Most of the potentially large-scale commercial applications of high temperature superconducting wires in magnet components require high sustained current densities at temperatures above 50 K in magnetic fields up to 5 Tesla. The proposed process is an innovative combination of the metallic precursor process pioneered by ASC and its partners for the economical production of robust high temperature superconducting wires, and film processes that produce the highest demonstrated critical current densities above 50 K in fields above 5 T. The Phase I project will establish the feasibility of a metallic precursor wire manufacturing process that employs the texturing processes utilized in thin film processes for attaining highly aligned grain microstructures. The inherent formability of the metallic precursor alloys presents a unique opportunity for manufacturing complex, geometrically precise, chemically homogeneous precursors similar locally to those used in thin film processes.