Fabrication, Transport Current Testing, and Finite Element Analysis of MgB2 Racetrack Coils

Kundu A., Patel D., Kumar N., Panchal A. G., Qiu W., Jie H., ...More

Journal of Superconductivity and Novel Magnetism, vol.30, no.10, pp.2957-2962, 2017 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 30 Issue: 10
  • Publication Date: 2017
  • Doi Number: 10.1007/s10948-016-3870-y
  • Journal Name: Journal of Superconductivity and Novel Magnetism
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.2957-2962
  • Keywords: Critical current, Magnetic field, MgB2 superconductor, Racetrack coil
  • Istanbul Gelisim University Affiliated: Yes

Abstract

© 2016, Springer Science+Business Media New York.This paper reports the fabrication, transport current testing, and finite element analysis of magnesium diboride (MgB2) racetrack coils made by a wind and react method at 4.2 K in self-field. This type of coil can be potentially appropriate for applications aimed at building block coils that can serve as wind turbine generator coils and correction coils for fusion magnets. We have fabricated racetrack coils using an in situ monofilament MgB2/Niobium/Monel wire; each coil had a wire length of 45 m and 80 turns. The best measured critical current of the coil was 134.9 A at 4.2 K and self-field of 0.55 T. In addition, the magnetic field and the Lorentz force contribution in the coil were estimated using finite element analysis.