Improved Hc2 in Bulk-Form Magnesium Diboride by Mechanical Alloying With Carbon

B. J. Senkowicz; J. E. Giencke; S. Patnaik; C. B. Eom; E. E. Hellstrom; D. C. Larbalestier

doi:10.1063/1.1920428

Improved Hc2 in Bulk-Form Magnesium Diboride by Mechanical Alloying With Carbon

Superconductivity 2009-11-10 v2

Authors: B. J. Senkowicz , J. E. Giencke , S. Patnaik , C. B. Eom , E. E. Hellstrom , D. C. Larbalestier

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Abstract

High energy milling of MgB2 pre-reacted powder renders the material largely amorphous through extreme mechanical deformation and is suitable for mechanically alloying MgB2 with dopants including carbon. Bulk samples of milled C and MgB2 powders subjected to hot isostatic pressing and Mg vapor annealing have achieved critical fields in excess of 32T and critical current density approaching 10^6 A/cm^2.

Keywords

magnesium diboride mechanical alloying carbon doping critical field critical current density hot isostatic pressing

Cite

@article{arxiv.cond-mat/0411199,
  title  = {Improved Hc2 in Bulk-Form Magnesium Diboride by Mechanical Alloying With Carbon},
  author = {B. J. Senkowicz and J. E. Giencke and S. Patnaik and C. B. Eom and E. E. Hellstrom and D. C. Larbalestier},
  journal= {arXiv preprint arXiv:cond-mat/0411199},
  year   = {2009}
}

Comments

13 pages, 3 figures references updated, typos corrected, numerical error corrected

Improved Hc2 in Bulk-Form Magnesium Diboride by Mechanical Alloying With Carbon

Abstract

Keywords

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