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

该小型企业创新研究（SBIR）第二阶段将开发一种连续的制造工艺，从粉末制备到机械变形和热处理，用于BSSCCO-2212电线和带材。 预期具有微尺寸细丝的长长度多晶BSCCO-2212将具有与Nb 3Sn竞争的成本/性能。 阶段I证明了通过使用部分自动化的BSCCO-2212化学制备和连续热处理来制造具有2-4微米的细丝直径的成本有效的、高性能的多相BSCCO-2212/银合金线的可行性。 第二阶段将集中于通过煅烧和优化长导体的连续热处理实现粉末工艺的完全自动化。 粉末工艺将根据阶段I的结果进一步优化，该结果表明可能产生纳米尺寸的BSCCO-2212颗粒。 将对纯度较低的材料、自动化对劳动力成本的影响以及总体加工时间的减少进行成本最小化研究。 BSSCO粉末的替代包装方法将被研究，以击败碳吸收，提高易于处理，并控制包装密度的电线。 具有成本效益、高性能、多用途的BSCCO-2212导线的商业可用性将使新一代电力变压器和高磁场磁体或能够在超过20特斯拉的磁场下工作的磁体插入件的生产成为可能。 这些设备将影响电力行业的经济效率以及高能物理、先进MRI（或NMR）分析和储能设备的未来发展。

This Small Business Innovation Research (SBIR) Phase II will develop a continuous manufacturing process from powder preparation through mechanical deformation and heat treatment for BSSCCO-2212 wires and tapes. It is expected that long length multifilamentary BSCCO-2212 with micro-size filaments will be cost/performance competitive with Nb3Sn. Phase I demonstrated the feasibility of fabricating a cost-effective, high performance multi-filamentary BSCCO-2212/silver alloy wire with filament diameters of 2-4 microns by using partially automated BSCCO-2212 chemical preparation and a continuous heat treatment. Phase II will concentrate on complete automation of the powder process through calcination and optimization of the continuous heat treatment for long conductors. The powder process will be further optimized based on Phase I results which indicate that nano-sized BSCCO-2212 particles may result. A cost minimization study will be performed on lesser purity materials, the effect of automation on labor costs, and the reduction of overall processing times. Alternative packaging methods for BSSCO powders will be investigated to defeat carbon uptake, improve ease of handling, and control packing density in the wires. Commercial availability of cost effective, high-performance, multifilamentary BSCCO-2212 wires will enable the production of a new generation of electric power transformers and high field magnets or magnet inserts capable of operation at fields in excess of 20 Tesla. These devices will impact the economic efficiency of the electric power industry as well as future developments in high energy physics, advanced MRI (or NMR) analysis, and energy storage devices.