Translingual Information Access

Not Available High power density non-nuclear power sources are required for BMDO, TMD and NMD applications. Systems operating at liquid nitrogen temperature using superconducting wire with high engineering current densities will successfully enable these applications. YBCO coated conductors offer the most promise for generator systems but require advances in coating processes to reduce cost and process complexity for high critical current density conductors. A low cost, thick film process incorporating advantages of existing laboratory methods will be demonstrated. This approach combines the demonstrated high critical current densities of the ex situ BaF2 deposition approach with a proven commercial non-vacuum deposition method for production of long lengths of YBCO superconducting tape. The objective of the Phase I and II efforts is development of superior YBCO coated conductor to enable the demonstration of efficient, high power density power systems for airborne use. The Phase I effort will demonstrate that this thick film deposition approach will produce YBCO films with superconducting performance comparable to benchmark vacuum and solution deposition processes. A scaleable manufacturing process for the uniform deposition of the precursor over long lengths of substrate will be demonstrated. The manufacturing robustness and cost benefits of the deposition approach over competing approaches will be assessed.