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Evaluation of Mg size dependence on superconductivity of MgB2

Journal Article


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Abstract


  • MgB2 bulk samples are synthesized through solid state reaction route using Mg precursors with different particle size by keeping the boron precursor unchanged. Scanning electron microscopy study of the fractured surface for all the samples depicts quite distinct structure depending on the Mg precursor. Big size of Mg precursor resulted in to largely elongated and deep pores while smaller one gave roughly ellipsoidal and shallow pore structure. Influence of the Mg particle size on the grain to grain connectivity reflected in the critical current density value which was greater for samples with smaller Mg precursor. All the synthesized samples undergo a superconducting transition at around 36.5 K irrespective of different Mg precursor particle size.

Authors


  •   Sinha, B.B (external author)
  •   Jang, Seok Hem (external author)
  •   Chung, Kookchae (external author)
  •   Kim, Jung Ho
  •   Dou, Shi Xue

Publication Date


  • 2013

Citation


  • Sinha, B. B., Jang, S. H., Chung, K. C., Kim, J. H. & Dou, S. X. (2013). Evaluation of Mg size dependence on superconductivity of MgB2. Progress in Superconductivity and Cryogenics, 15 (2), 39-43.

Scopus Eid


  • 2-s2.0-84881228304

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2412&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1410

Has Global Citation Frequency


Number Of Pages


  • 4

Start Page


  • 39

End Page


  • 43

Volume


  • 15

Issue


  • 2

Place Of Publication


  • Korea

Abstract


  • MgB2 bulk samples are synthesized through solid state reaction route using Mg precursors with different particle size by keeping the boron precursor unchanged. Scanning electron microscopy study of the fractured surface for all the samples depicts quite distinct structure depending on the Mg precursor. Big size of Mg precursor resulted in to largely elongated and deep pores while smaller one gave roughly ellipsoidal and shallow pore structure. Influence of the Mg particle size on the grain to grain connectivity reflected in the critical current density value which was greater for samples with smaller Mg precursor. All the synthesized samples undergo a superconducting transition at around 36.5 K irrespective of different Mg precursor particle size.

Authors


  •   Sinha, B.B (external author)
  •   Jang, Seok Hem (external author)
  •   Chung, Kookchae (external author)
  •   Kim, Jung Ho
  •   Dou, Shi Xue

Publication Date


  • 2013

Citation


  • Sinha, B. B., Jang, S. H., Chung, K. C., Kim, J. H. & Dou, S. X. (2013). Evaluation of Mg size dependence on superconductivity of MgB2. Progress in Superconductivity and Cryogenics, 15 (2), 39-43.

Scopus Eid


  • 2-s2.0-84881228304

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2412&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1410

Has Global Citation Frequency


Number Of Pages


  • 4

Start Page


  • 39

End Page


  • 43

Volume


  • 15

Issue


  • 2

Place Of Publication


  • Korea