Abstract
Proteic Sol-Gel method was used for the synthesis of FeNi alloy at
different temperature conditions and flow reduction. The solids were
characterized by XRD, H-2-TPR, SEM, TEM, Mossbauer spectroscopy, and
VSM. It was observed by X-ray diffraction pure FeNi alloy in the samples
reduced at 600 degrees C (40 mL/min H-2 flow) and 700 degrees C (25
mL/min H-2 flow). The FeNi alloy presented stability against the
oxidizing atmosphere up to 250 degrees C. Themorphology exhibited
agglomerates relatively spherical and particles in the range of 10-40
nm. Mossbauer spectroscopy showed the presence of disordered
ferromagnetic FeNi alloy, and magnetic hysteresis loop revealed a
typical behavior of soft magnetic material.
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