SBIR Phase I: An Advanced Method to Manufacture Continuous Reacted Lengths of BSCCO-2212 Wires

这个小企业创新研究（SBIR）第一阶段项目将探索一种使用连续热处理制造微米尺寸细丝的BSCCO-2212线材的工艺。虽然在高温超导体（HTS）电线和磁带方面取得了稳定的进展，但它们还没有完全商业化。这一创新有望生产出与铌锡化合物（Nb3Sn）线材在成本和性能上具有竞争力的长多丝BSCCO-2212线材。第一阶段将展示采用连续热处理技术制造高性能多丝BSCCO-2212银（Ag）合金护套线的成本效益，其丝径为2-4微米。第一阶段将重点研究适合制造2-4微米细丝的线材的最佳粒度和粉末分布。拉丝参数，以生产机械均匀的电线没有将确定。温度梯度和通过率将被优化以达到期望的性能。第二阶段将致力于优化工艺参数和制造长（200-500米）多丝电线。高性能多丝BSCCO-2212线的商业应用有望用于生产新一代高场磁铁或磁铁插入件，这些磁铁或磁铁插入件可以在超过20特斯拉的磁场下工作。这些超高磁场磁体将显著影响高能物理、先进磁共振成像（MRI）和中子磁共振（NMR）分析以及超导磁储能（SMES）和微型SMES等储能设备的进一步发展。＊＊＊

*** 9761515 Sengupta This Small Business Innovation Research (SBIR) Phase I project will explore a process that uses continuous heat treatment for manufacturing BSCCO-2212 wire with micron-sized filaments. Although steady progress has been achieved in high temperature superconductor (HTS) wires and tapes, they are not fully commercialized. This innovation is expected to produce long multifilamentary BSCCO-2212 wire competitive in cost and performance with niobium tin compound (Nb3Sn) wire. Phase I will demonstrate the cost-effective fabrication of high-performance multifilamentary BSCCO-2212 silver (Ag) alloy sheathed wire with filament diameters of 2-4 microns by using continuous heat treatment. Phase I will focus on the optimum particle size and distribution of powders suitable for fabrication of wires with 2-4 micron filaments. Drawing parameters to produce mechanically uniform wires without will be determined. The temperature gradient and the pass rate will be optimized to achieve desired properties. Phase II would pursue optimizing process parameters and fabrication of long-length (200-500 meter) multifilamentary wires. Commercial application of high-performance multifilamentary BSCCO-2212 wire is expected in production of a new generation of high-field magnets or magnet inserts which may operate at fields in excess of 20 Tesla. These ultra-high field magnets would significantly impact further development of high energy physics, advanced magnetic resonance imaging (MRI) and neutron magnetic resonance (NMR) analysis, and energy storage devices, e.g., superconducting magnetic energy storage (SMES) and micro SMES. ***