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

*** 小行星9761515 该小型企业创新研究（SBIR）第一阶段项目将探索一种使用连续热处理制造微米级细丝BSCCO-2212线材的工艺。 尽管高温超导线材和带材的研究取得了稳步进展，但尚未完全商业化。 该创新有望生产出在成本和性能方面与铌锡化合物（Nb 3Sn）线材具有竞争力的长多芯BSCCO-2212线材。 第一阶段将证明通过使用连续热处理，具有2-4微米的细丝直径的高性能多芯BSCCO-2212银（Ag）合金护套线的成本效益制造。 第一阶段将集中在最佳的颗粒大小和分布的粉末适合制造线与2-4微米的长丝。 将确定生产机械均匀线材的拉拔参数。 温度梯度和通过率将被优化以实现期望的性能。 第二阶段将寻求优化工艺参数和制造长长度（200-500米）的多芯线。 高性能多芯BSCCO-2212线材的商业应用有望用于生产新一代高磁场磁体或磁体插入件，这些磁体或磁体插入件可在超过20特斯拉的磁场下工作。 这些超高场磁体将显著影响高能物理学、先进磁共振成像（MRI）和中子磁共振（NMR）分析以及能量存储装置的进一步发展，例如，超导磁储能（SMES）和微型SMES。 ***

*** 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. ***