Article
An investigation on the formation mechanism of nano ZrB2 powder by a magnesiothermic reaction
Author/s | Jalaly, M.
Bafghi, M. Sh Tamizifar, M. Gotor Martínez, Francisco José |
Department | Universidad de Sevilla. Departamento de Química Inorgánica |
Publication Date | 2014 |
Deposit Date | 2018-04-24 |
Published in |
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Abstract | Nanocrystalline zirconium diboride (ZrB2) powder was produced by mechanochemistry from the magnesiothermic reduction in the Mg/ZrO 2/B2O3 system. The use of high-energy milling conditions was essential to induce a mechanically ... Nanocrystalline zirconium diboride (ZrB2) powder was produced by mechanochemistry from the magnesiothermic reduction in the Mg/ZrO 2/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. |
Funding agencies | Gobierno de España |
Project ID. | No. MAT2011-22981 |
Citation | Jalaly, M., Bafghi, M.S., Tamizifar, M. y Gotor Martínez, F.J. (2014). An investigation on the formation mechanism of nano ZrB2 powder by a magnesiothermic reaction. Journal of Alloys and Compounds, 588, 36-41. |
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