Development of DC and AC MgB2 Superconductor Wires and Their Applications

Nov. 30 15:00-15:25

*Michael Tomsic1, Matt Rindfleisch11, David Doll1, Mike D Sumption2
Hyper Tech Research, Inc.1
Department of Materials Science and Engineering, The Ohio State University2

The use of Magnesium Diboride (MgB2) wires for DC applications has been progressing over the years. In recent years the new development area has been the development of low AC MgB2 for several applications. The desire has been to decrease the filament size, reduce the twist pitch, and remove magnetic materials from the wire matrix, without losing the superconducting current density (Jc). We will be reporting on the successes that has been made to reduce the AC losses. We will also be discussing the benefits of these low AC loss wires for various applications and the potential for developing all superconducting (rotor and stator) rotating machines for wind turbine generators, motors and generators for electric aircraft, ships and trains. The low AC loss wires are also useful for fast charge and discharge superconducting magnetic energy storage(SMES), and utility transformers. We will also update progress on 2nd generation MgB2 wire performance.Acknowledgement This low AC loss MgB2 wire development has been supported by NASA, USA