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Nanocrystalline Fe powders were synthesized by transmetallation reaction and embedded in silica to form Fe–SiO 2 nanocomposite. Thermomagnetic study of the as-prepared Fe sample indicates the presence of Fe 3 O 4 and Fe particles. Oxidation studies of Fe and Fe–SiO 2 show an increased thermal stability of Fe–SiO 2 nanocomposite over pure Fe. The Fe–SiO 2...
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