Abstract
This research presents effect of sintering temperature T and structural transition process on magnetic and optical properties of as-prepared magnetite Fe2+Cr0.2Fe1.8O4 nanoferrites which synthesized by Co-precipitation method and sintered at different T. Structural phase of crystal lattice was converted from-cubic magnetite-to-maghemite-to-hexagonal hematite with T. Specific surface area S revealed decrease against crystallite size R. Saturation magnetization MS proved dependence on R and porosity P. Strain behavior Ԑ enhanced band gap energy Eg.
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