R. H. Kadam, Suresh T. Alone
The structural and magnetic properties of Co–Ni nano-alloys were investigated, focusing on the effects of Al3+ ion substitution. The objective was to synthesize ferrite samples with varying Al content using a sol–gel auto-combustion method and analyze their properties. Samples were synthesized with the chemical formula Co0.5Ni0.5AlxFe2−xO4 (with x values of 0, 0.25, 0.5, 0.75, and 1.0) and annealed at 600 °C for 4 hours. X-ray diffraction (XRD) results demonstrated the formation of a single-phase cubic spinel structure, with the lattice parameter decreasing as Al content increased. Transmission electron microscopy (TEM) confirmed the nano-size of the powders produced. The study found that as Al substitution increased, the particle size and bulk density decreased, while specific surface area and porosity increased. Additionally, the cation distribution showed a linear dependence on Al substitution, impacting structural parameters like ionic radii and oxygen parameter ‘u.’ Further analysis indicated a decrease in saturation magnetization, magneton number, and coercivity with increased Al content. These findings provide insight into how Al substitution affects the structural and magnetic characteristics of Co–Ni nano-alloys, which are critical for future applications in high-frequency devices.
@article{47946372-d5ee-4d98-87fc-12e0ae75ee9d,
title={Al3+ Ions Dependent Structural and Magnetic Properties of Co–Ni Nano-Alloys},
author={R. H. Kadam and Suresh T. Alone},
year={2013},
language={en}
}TY - JOUR TI - Al3+ Ions Dependent Structural and Magnetic Properties of Co–Ni Nano-Alloys AU - R. H. Kadam AU - Suresh T. Alone PY - 2013 LA - en ER -
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