Abstract
Iron-based nanoparticles prepared by precipitation from solid solution of saturated binary Cu-Fe alloy were studied by transmission electron microscopy, high-energy X-ray diffraction and Mossbauer spectroscopy. The results showed that the investigated as-prepared nanoparticles contained two phases. The major phase was determined as α−F e and the minor phase as γ−F e 2 O 3. Furthermore, additionally annealed samples in Ar protective atmosphere were investigated. Results showed clear decrease in contribution of α−F e phase and also revealed the presence of various iron oxides (maghemite, magnetite, hematite and wűstite).
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