Bi2212 Powder Production with Wide Tmax Window for High Field Magnet Applications

The production of advanced magnets, which are capable of generating magnetic fields of 16 Tesla and higher, requires advances in superconducting conductors that can be produced in volume and that is capable of operating at high temperatures.This program is focused on the development of highperformance bismuth strontium calcium copper oxide powder, or Bi2212, which is a leading candidate material for use in the production of high-temperature superconductor wires.During Phase I, Bi2212 powder was developed with newly-devised processing parameters that allowed the resulting powder to be successfully heat treated in a broader temperature window.This broader temperature window supports the manufacturability of the powder and the resulting wire, positioning it for broader adoption in the superconducting community.Multifilamentary round wire made with Bi2212 can enable advanced performance for high energy physics accelerator magnet applications.During Phase II, further optimization of processing parameters for Bi2212 powder will be performed.The impact of critical powder specifications, including dopants and particle size, will be explored, further enabling the performance boundary of Bi2212 powder and the resulting wire to be expanded.Highperforming powder will be repeatably produced in a scaled-up manner that demonstrates the production capability necessary to support the growing demands in this field.Commercial applications include next-generation systems for nuclear magnetic resonance (NMR) and magnetic resonance imaging (MRI).Fusion energy and various forms of renewable energy are also potential beneficiaries.