Fundamental Studies for High Temperature Superconductor Conductor Technology
Abstract
There is strong Air Force interest in compact, airborne, high-power generators and klystron/gyrotron/magnetron magnets for radar applications. Both applications need superconducting magnets but, to be practical, superconducting magnets must be made with high temperature superconductors (HTS) capable of being refrigerated by robust cryocoolers at temperatures near liquid nitrogen (77K). The pacing element for all such applications is the conductor from which such magnets can be made. The material of choice for this conductor is YBa2CU3O7-x, made in the form of a multilayer tape as a Coated Conductor. This report proposal describes research carried out in support of this effort from 1999-2002. Our global thrusts were to understand the ultimate critical current potential of YBCO in coated conductor form. To this end we performed the following work under this contract: 1. Studies of current limiting mechanisms in Coated Conductor samples., 2. Studies of the microstructure of buffer and YBCO layers of Coated Conductors, 3. Analysis of the influence of obstructions to current flow and local dissipation, and 4. Facility development in support of our research program.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 2002
- Accession Number
- ADA418367
Entities
People
- David C. Larbalestier
Organizations
- University of Wisconsin–Madison