Preparation of nanocrystalline VO y by high-energy ball milling
Tóm tắt
We report high-energy milling of macrocrystalline nonstoichiometric cubic vanadium monoxide (VO
y
) powder in a planetary ball mill lined with stabilized zirconia. The results indicate that milling of macrocrystalline VO
y
powder at 500 rpm for more than 2 h considerably broadens diffraction line profiles, with no changes in the crystal structure of the vanadium monoxide, VO1.00. Microstructural examination of vanadium monoxide powder by high-resolution scanning electron microscopy and X-ray diffraction indicates that high-energy ball milling can be used to produce vanadium monoxide powder with an average crystallite size within 23 nm.
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