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

doi:10.3390/coatings12081151

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 journal › Article › peer-review

2 Citations (Scopus)

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 language	English
Article number	1151
Journal	Coatings
Volume	12
Issue number	8
DOIs	https://doi.org/10.3390/coatings12081151
Publication status	Published - 2022 Aug

Keywords

MgB
Spark Plasma Sintering
bulk
soldering
superconductor

ASJC Scopus subject areas

Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

Access to Document

10.3390/coatings12081151

Cite this

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

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.",

keywords = "MgB, Spark Plasma Sintering, bulk, soldering, superconductor",

author = "Yohann Thimont and Yiteng Xing and Pierre Bernstein and Muralidhar Miryala and Jacques Noudem",

note = "Funding Information: Y.X. thanks the “Conseil R{\'e}gional-Normandie, France“ for her thesis grant. This work was partly supported by Shibaura Institute of Technology (SIT) International Research Center for Green Electronics. Publisher Copyright: {\textcopyright} 2022 by the authors.",

year = "2022",

month = aug,

doi = "10.3390/coatings12081151",

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AU - Thimont, Yohann

AU - Xing, Yiteng

AU - Bernstein, Pierre

AU - Miryala, Muralidhar

AU - Noudem, Jacques

N1 - Funding Information: Y.X. thanks the “Conseil Régional-Normandie, France“ for her thesis grant. This work was partly supported by Shibaura Institute of Technology (SIT) International Research Center for Green Electronics. Publisher Copyright: © 2022 by the authors.

PY - 2022/8

Y1 - 2022/8

N2 - 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.

AB - 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.

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KW - Spark Plasma Sintering

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KW - superconductor

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