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

小型企业创新研究(SBIR)第二阶段将为BSSCCO-2212线材和带材开发从粉末制备到机械变形和热处理的连续制造工艺。预计具有微细长丝的长丝多丝BSCCO-2212的性价比将与Nb3Sn相媲美。第一阶段论证了通过部分自动化的BSCCO-2212化学制备和连续热处理，制造成本效益高、高性能的BSCCO-2212/银合金多丝直径2-4微米丝的可行性。第二阶段将专注于通过焙烧和优化长导体的连续热处理来实现粉末工艺的完全自动化。根据第一阶段的结果，粉末工艺将进一步优化，这表明可能会得到纳米级的BSCCO-2212粒子。将对纯度较低的材料进行成本最小化研究，自动化对劳动力成本的影响，以及整体加工时间的减少。将研究BSSCO粉末的替代包装方法，以减少碳吸收，提高搬运便利性，并控制线材中的包装密度。具有成本效益的高性能多丝BSCCO-2212电线的商业供应将使新一代电力变压器和高场磁铁或磁铁插件的生产能够在超过20特斯拉的磁场下运行。这些设备将影响电力行业的经济效益，以及高能物理、先进核磁共振(或核磁共振)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.