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The present paper reports the growth and branching mechanism of W18O49 nanowires grown on nanocrystalline tungsten (W) surfaces. Nanocrystalline W powder was prepared using high energy ball milling. The nanopowder was non-isothermally heat-treated up to 1400°C in argon atmosphere. The nanowires of 30–50nm diameter were observed on nanopowder surfaces after the heat-treatment. A model based on crystallographic...
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