Development of Fe-sheathed MgB2 wires and tapes for electric power applications

H. Fang, P. Gijavanekar, Y. X. Zhou, P. T. Putman, K. Salama

Research output: Contribution to journalArticle

10 Scopus citations

Abstract

Superconducting coils with different dimensions were manufactured via a wind-reaction process by using Fe-sheathed MgB2 wires, which were fabricated using the powder-in-tube method and ultra-fine starting precursors. Very good grain connectivity as well as high core density was obtained in Fe-sheathed wires and tapes. At 20 K and self-field, the critical current of the coil with ID 12 mm and 12 turns is 360 A, which is equivalent to the J c of 1.8 × 105 A/cm2. At 6 Tesla external magnetic field and 4.2 K, the coil with ID 14 cm and 10 turns possesses the Jc of 1 × 104 A/cm2. In-field current carrying capability of MgB2 wires and tapes were further enhanced by Ti additive. These results demonstrate the potential of MgB2 superconducting wires and tapes for large-scale applications.

Original languageEnglish (US)
Pages (from-to)3200-3203
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume15
Issue number2 PART III
DOIs
StatePublished - Jun 1 2005

Keywords

  • Critical current density
  • Magnesium diboride
  • Powder-in-tube
  • Superconducting

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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