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Título: | An investigation on the formation mechanism of nano ZrB2 powder by a magnesiothermic reaction |
Autor: | Jalaly, M.; Bafghi, M.Sh.; Tamizifar, M.; Gotor, F.J. CSIC ORCID | Palabras clave: | Mechanosynthesis Zirconium diboride Formation mechanism. |
Fecha de publicación: | 2014 | Editor: | Elsevier | Citación: | Journal of Alloys and Compounds 588: 36- 41 (2014) | Resumen: | 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. © 2013 Elsevier B.V. All rights reserved. | URI: | http://hdl.handle.net/10261/104195 | DOI: | 10.1016/j.jallcom.2013.11.050 | Identificadores: | doi: 10.1016/j.jallcom.2013.11.050 issn: 0925-8388 |
Aparece en las colecciones: | (ICMS) Artículos |
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JAllComp(87).pdf | 797,07 kB | Adobe PDF | Visualizar/Abrir |
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