Joining Superconducting MgB2 Parts by Spark Plasma Sintering: A New Technique with High Potential for Manufacturing Future Superconducting Devices

Yohann Thimont, Yiteng Xing, Pierre Bernstein, Muralidhar Miryala, Jacques Noudem

Research output: Contribution to journalArticlepeer-review

Abstract

MgB2 pellets that were sintered by Spark Plasma Sintering (SPS) from commercial MgB2 powder were soldered by a SPS process and compared to unsoldered ones. The soldered samples were characterized by scanning and transmission electron microscopy which have shown no visible defects at the junction. SQUID magnetometry and four probes resistance measurements have confirmed that the soldered pellets present the same magnetic properties as the unsoldered ones. The presented soldering technique could find applications for manufacturing superconducting devices with custom shapes which could be used as rotors for motors and generators, magnets and magnetic shields. This new approach could generate a high potential interest for industrials in these and connected domains such as the development of new electrical planes using superconducting technologies.

Original languageEnglish
Article number1151
JournalCoatings
Volume12
Issue number8
DOIs
Publication statusPublished - 2022 Aug

Keywords

  • MgB
  • Spark Plasma Sintering
  • bulk
  • soldering
  • superconductor

ASJC Scopus subject areas

  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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