Enhancement of Electrical Properties by Tailoring Nanoparticles in Holmium-doped YBa2Cu3O7-Delta Superconductors

摘要

High-temperature superconducting (HTS) tape and wire are promising for high power density shipboard motor and generator applications. There is a need, however, for improving the performance and stability of these materials in high magnetic fields in order to fully exploit this technology. The Naval Research Laboratory, with our extensive expertise and sophisticated capabilities for microstructural analysis, has been approached by and is working closely with several HTS wire processing groups, including HTS manufacturers American Superconductor Corporation and Metal Oxide Technologies Incorporated, as well as the U.S. Air Force Research Laboratory, to understand the basic relationships between microstructure and performance of HTS tapes.