An innovative technique to synthesize C-doped MgB2 by using chitosan as the carbon source (Articolo in rivista)

Type
Label
  • An innovative technique to synthesize C-doped MgB2 by using chitosan as the carbon source (Articolo in rivista) (literal)
Anno
  • 2014-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1088/0953-2048/27/2/022001 (literal)
Alternative label
  • Bovone, G.; Vignolo, M.; Bernini, C.; Kawale, S.; Siri, A. S. (2014)
    An innovative technique to synthesize C-doped MgB2 by using chitosan as the carbon source
    in Superconductor science and technology (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Bovone, G.; Vignolo, M.; Bernini, C.; Kawale, S.; Siri, A. S. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 27 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 7 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 2 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • University of Genoa; Consiglio Nazionale delle Ricerche (CNR) (literal)
Titolo
  • An innovative technique to synthesize C-doped MgB2 by using chitosan as the carbon source (literal)
Abstract
  • Here, we report a new technique to synthesize carbon-doped MgB2 powder. Chitosan was innovatively used as the carbon source during the synthesis of boron from boron oxide. This allowed the introduction of local defects, which later on served as pinning centers in MgB2, in the boron lattice itself, avoiding the traditional and time consuming ways of ex situ MgB2 doping (e.g. ball milling). Two volume percentages of C-doping have been tried and its effect on the superconducting properties, evaluated by magnetic and transport measurements, are discussed here. Morphological analysis by scanning electron microscopy revealed nano-metric grains' distribution in the boron and MgB2 powder. Mono-filamentary MgB2 wires have been fabricated by an ex situ powder-in-tube technique by using the thus prepared carbon-doped MgB2 and pure MgB2 powders. Transport property measurements on these wires were made and compared with MgB2 wire produced using commercial boron. (literal)
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