Synthesis of FeNi Alloy Nanomaterials by Proteic Sol-Gel Method: Crystallographic, Morphological, and Magnetic Properties

Abstract EN

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, H2-TPR, SEM, TEM, Mössbauer spectroscopy, and VSM.

It was observed by X-ray diffraction pure FeNi alloy in the samples reduced at 600°C (40 mL/min H2 flow) and 700°C (25 mL/min H2 flow).

The FeNi alloy presented stability against the oxidizing atmosphere up to 250°C.

The morphology exhibited agglomerates relatively spherical and particles in the range of 10–40 nm.

Mössbauer spectroscopy showed the presence of disordered ferromagnetic FeNi alloy, and magnetic hysteresis loop revealed a typical behavior of soft magnetic material.