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Journal of alloys and compounds, 2014-03, Vol.588, p.36-41
2014
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Details

Autor(en) / Beteiligte
Titel
An investigation on the formation mechanism of nano ZrB2 powder by a magnesiothermic reaction
Ist Teil von
  • Journal of alloys and compounds, 2014-03, Vol.588, p.36-41
Ort / Verlag
Kidlington: Elsevier B.V
Erscheinungsjahr
2014
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
  • •Synthesis of zirconium diboride by magnesiothermic reduction.•Using high energy ball milling to perform mechanochemical reactions.•Study of mechanism of ZrB2 synthesis by studying subreactions and thermal analysis. Nanocrystalline zirconium diboride (ZrB2) powder was produced by mechanochemistry from the magnesiothermic reduction in the Mg/ZrO2/B2O3 system. The use of high-energy milling conditions was essential to induce a mechanically induced self-sustaining reaction (MSR) and significantly reduce the milling time required for complete conversion. Under these conditions, it was found that the ignition time for ZrB2 formation was only about a few minutes. In this study, the mechanism for the formation of ZrB2 in this system was determined by studying the relevant sub-reactions, the effect of stoichiometry, and the thermal behavior of the system.
Sprache
Englisch
Identifikatoren
ISSN: 0925-8388
eISSN: 1873-4669
DOI: 10.1016/j.jallcom.2013.11.050
Titel-ID: cdi_crossref_primary_10_1016_j_jallcom_2013_11_050

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