Reduction of the substitutional disorder by heat treatments in Mn2-xCoxVAl Heusler alloys
Radu GAVREA, Marin COLDEA, Lucian BARBU-TUDORAN, Olivier ISNARD, Viorel POP. Diana BENEA
download PDFAbstract. We report on the preparation and the atomic disorder reduction by annealing in Mn2-xCoxVAl Heusler alloys. The degrees of the B2 and L21 atomic ordering for the as-cast samples, obtained from intensity ratios of (200) and (111) peaks respectively related to (220) peak of the X-ray patterns, are significantly improved after annealing at 700 – 800 °C for 72 h. The diminution of the substitutional disorder is essential in these types of compounds, as the half-metallic character and the magnetic properties are primarily influenced by this factor.
Keywords
Heusler compounds, Substitutional disorder, X-ray diffraction, Neutron diffraction
Published online 11/5/2018, 9 pages
Copyright © 2018 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Radu GAVREA, Marin COLDEA, Lucian BARBU-TUDORAN, Olivier ISNARD, Viorel POP. Diana BENEA, ‘Reduction of the substitutional disorder by heat treatments in Mn2-xCoxVAl Heusler alloys’, Materials Research Proceedings, Vol. 8, pp 219-227, 2018
DOI: https://dx.doi.org/10.21741/9781945291999-25
The article was published as article 25 of the book Powder Metallurgy and Advanced Materials
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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