Spark plasma synthesis and sintering of superconducting MgB 2-based Materials

Tatiana Prikhna, Jacques Noudem, Wolfgang Gawalek, Athanasios Mamalis, Alexander Soldatov, Yaroslav Savchuk, Viktor Moshchil, Michael Eisterer, Harald W. Weber, Sergey Dub, Tobias Habisreuther, Jan Dellith, Shujie You, Christa Schmidt, Friedrich Karau, Ulrich Dittrich, I. Vajda, Nina Sergienko, Vladimir Sokolovsky, Doris Litzkendorf & 3 others Xavier Chaud, Vladimir Sverdun, Roman Kuznietsov

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Abstract

Superconducting (SC) and mechanical properties of spark plasma (or SPS) produced MgB 2 -based materials allow their efficient applications in fault current limiters, superconducting electromotors, pumps, generators, magnetic bearings, etc. The synthesized from Mg and B at 50 MPa, 1050 °C for 30 min material has a density of 2.52 g/cm 3, critical current density, j c = 7.1·10 5 A/cm 2 at 10 K , 5.4·10 5 A/cm 2 at 20 K, and 9·10 4 A/cm 2 at 35 K in zero magnetic field; at 20 K its field of irreversibility B irr(20)=7 T and upper critical field B c2(20)=11 T; microhardness H V=10.5 GPa and fracture toughness K 1C =1.7 MPa·m 1/2 at 4.9 N-load. SPS-manufactured in- situ MgB 2- based materials usually have somewhat higher j c than sintered ex-situ. The pressure variations from 16 to 96 MPa during the SPS-process did not affect material SC characteristics significantly; the j c at 10-20 K was slightly higher and the material density was higher by 11%, when pressures of 50-96 MPa were used. The structure of SPS-produced MgB 2 material contains Mg-B-O inclusions and inclusions of higher borides (of compositions near MgB 4, MgB 7, MgB 12, MgB 17, MgB 20), which can be pinning centers. The presence of higher borides in the MgB 2 structure can be revealed by the SEM and Raman spectroscopy.

Original languageEnglish
Title of host publicationMaterials Science Forum
Pages3-8
Number of pages6
Volume721
DOIs
Publication statusPublished - 2012
Event7th Japanese-Mediterranean and Central European Workshop on Applied Electromagnetic Engineering for Magnetic, Superconducting and Nano Materials, JAPMED'7 - Budapest, Hungary
Duration: Jul 6 2011Jul 9 2011

Publication series

NameMaterials Science Forum
Volume721
ISSN (Print)02555476

Other

Other7th Japanese-Mediterranean and Central European Workshop on Applied Electromagnetic Engineering for Magnetic, Superconducting and Nano Materials, JAPMED'7
CountryHungary
CityBudapest
Period7/6/117/9/11

Fingerprint

borides
sparks
Electric sparks
sintering
Sintering
inclusions
Plasmas
magnetic bearings
Boron Compounds
synthesis
toughness
fracture strength
Borides
microhardness
critical current
generators
Raman spectroscopy
mechanical properties
pumps
current density

Keywords

  • Critical current density
  • Mechanical properties
  • MgB -based superconductive nanostructural materials
  • Raman spectroscopy
  • Spark plasma synthesis and sintering

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Prikhna, T., Noudem, J., Gawalek, W., Mamalis, A., Soldatov, A., Savchuk, Y., ... Kuznietsov, R. (2012). Spark plasma synthesis and sintering of superconducting MgB 2-based Materials. In Materials Science Forum (Vol. 721, pp. 3-8). (Materials Science Forum; Vol. 721). https://doi.org/10.4028/www.scientific.net/MSF.721.3

Spark plasma synthesis and sintering of superconducting MgB 2-based Materials. / Prikhna, Tatiana; Noudem, Jacques; Gawalek, Wolfgang; Mamalis, Athanasios; Soldatov, Alexander; Savchuk, Yaroslav; Moshchil, Viktor; Eisterer, Michael; Weber, Harald W.; Dub, Sergey; Habisreuther, Tobias; Dellith, Jan; You, Shujie; Schmidt, Christa; Karau, Friedrich; Dittrich, Ulrich; Vajda, I.; Sergienko, Nina; Sokolovsky, Vladimir; Litzkendorf, Doris; Chaud, Xavier; Sverdun, Vladimir; Kuznietsov, Roman.

Materials Science Forum. Vol. 721 2012. p. 3-8 (Materials Science Forum; Vol. 721).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Prikhna, T, Noudem, J, Gawalek, W, Mamalis, A, Soldatov, A, Savchuk, Y, Moshchil, V, Eisterer, M, Weber, HW, Dub, S, Habisreuther, T, Dellith, J, You, S, Schmidt, C, Karau, F, Dittrich, U, Vajda, I, Sergienko, N, Sokolovsky, V, Litzkendorf, D, Chaud, X, Sverdun, V & Kuznietsov, R 2012, Spark plasma synthesis and sintering of superconducting MgB 2-based Materials. in Materials Science Forum. vol. 721, Materials Science Forum, vol. 721, pp. 3-8, 7th Japanese-Mediterranean and Central European Workshop on Applied Electromagnetic Engineering for Magnetic, Superconducting and Nano Materials, JAPMED'7, Budapest, Hungary, 7/6/11. https://doi.org/10.4028/www.scientific.net/MSF.721.3
Prikhna T, Noudem J, Gawalek W, Mamalis A, Soldatov A, Savchuk Y et al. Spark plasma synthesis and sintering of superconducting MgB 2-based Materials. In Materials Science Forum. Vol. 721. 2012. p. 3-8. (Materials Science Forum). https://doi.org/10.4028/www.scientific.net/MSF.721.3
Prikhna, Tatiana ; Noudem, Jacques ; Gawalek, Wolfgang ; Mamalis, Athanasios ; Soldatov, Alexander ; Savchuk, Yaroslav ; Moshchil, Viktor ; Eisterer, Michael ; Weber, Harald W. ; Dub, Sergey ; Habisreuther, Tobias ; Dellith, Jan ; You, Shujie ; Schmidt, Christa ; Karau, Friedrich ; Dittrich, Ulrich ; Vajda, I. ; Sergienko, Nina ; Sokolovsky, Vladimir ; Litzkendorf, Doris ; Chaud, Xavier ; Sverdun, Vladimir ; Kuznietsov, Roman. / Spark plasma synthesis and sintering of superconducting MgB 2-based Materials. Materials Science Forum. Vol. 721 2012. pp. 3-8 (Materials Science Forum).
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abstract = "Superconducting (SC) and mechanical properties of spark plasma (or SPS) produced MgB 2 -based materials allow their efficient applications in fault current limiters, superconducting electromotors, pumps, generators, magnetic bearings, etc. The synthesized from Mg and B at 50 MPa, 1050 °C for 30 min material has a density of 2.52 g/cm 3, critical current density, j c = 7.1·10 5 A/cm 2 at 10 K , 5.4·10 5 A/cm 2 at 20 K, and 9·10 4 A/cm 2 at 35 K in zero magnetic field; at 20 K its field of irreversibility B irr(20)=7 T and upper critical field B c2(20)=11 T; microhardness H V=10.5 GPa and fracture toughness K 1C =1.7 MPa·m 1/2 at 4.9 N-load. SPS-manufactured in- situ MgB 2- based materials usually have somewhat higher j c than sintered ex-situ. The pressure variations from 16 to 96 MPa during the SPS-process did not affect material SC characteristics significantly; the j c at 10-20 K was slightly higher and the material density was higher by 11{\%}, when pressures of 50-96 MPa were used. The structure of SPS-produced MgB 2 material contains Mg-B-O inclusions and inclusions of higher borides (of compositions near MgB 4, MgB 7, MgB 12, MgB 17, MgB 20), which can be pinning centers. The presence of higher borides in the MgB 2 structure can be revealed by the SEM and Raman spectroscopy.",
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AU - Savchuk, Yaroslav

AU - Moshchil, Viktor

AU - Eisterer, Michael

AU - Weber, Harald W.

AU - Dub, Sergey

AU - Habisreuther, Tobias

AU - Dellith, Jan

AU - You, Shujie

AU - Schmidt, Christa

AU - Karau, Friedrich

AU - Dittrich, Ulrich

AU - Vajda, I.

AU - Sergienko, Nina

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N2 - Superconducting (SC) and mechanical properties of spark plasma (or SPS) produced MgB 2 -based materials allow their efficient applications in fault current limiters, superconducting electromotors, pumps, generators, magnetic bearings, etc. The synthesized from Mg and B at 50 MPa, 1050 °C for 30 min material has a density of 2.52 g/cm 3, critical current density, j c = 7.1·10 5 A/cm 2 at 10 K , 5.4·10 5 A/cm 2 at 20 K, and 9·10 4 A/cm 2 at 35 K in zero magnetic field; at 20 K its field of irreversibility B irr(20)=7 T and upper critical field B c2(20)=11 T; microhardness H V=10.5 GPa and fracture toughness K 1C =1.7 MPa·m 1/2 at 4.9 N-load. SPS-manufactured in- situ MgB 2- based materials usually have somewhat higher j c than sintered ex-situ. The pressure variations from 16 to 96 MPa during the SPS-process did not affect material SC characteristics significantly; the j c at 10-20 K was slightly higher and the material density was higher by 11%, when pressures of 50-96 MPa were used. The structure of SPS-produced MgB 2 material contains Mg-B-O inclusions and inclusions of higher borides (of compositions near MgB 4, MgB 7, MgB 12, MgB 17, MgB 20), which can be pinning centers. The presence of higher borides in the MgB 2 structure can be revealed by the SEM and Raman spectroscopy.

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