Mechanochemical Reduction of V2O5

✍ Scribed by H. Yang; P.G. McCormick

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 636 KB
• Volume: 110
• Category: Article
• ISSN: 0022-4596
• DOI: 10.1006/jssc.1994.1147

✦ Synopsis

The reduction of (\mathrm{V}{2} \mathrm{O}{5}) using (\mathrm{Mg}, \mathrm{Al}), and (\mathrm{Ti}) as reductants during mechanical milling in a ball mill has been studied. With all three reductants, a combustion reaction was observed after milling for a critical ignition time. Using (\mathrm{Mg}) as the reductant, the ignition time was found to increase with decreasing collision energy. However, the combustion event could not be associated with a critical degree of microstructural refinement or a reduction of the ignition temperature. With both (M g) and (\wedge \mid) reductants TI:M examination of the as-combensted powders showed the presence of namoseale single crystal smoke particles, similar to those formed by gas evaporation techniques. 1994 Academic Press, Inc.