Solution combustion synthesis of nanocrystalline Fe–50%Ni alloy powder

Nanocrystalline Fe–50%Ni powder was synthesized via solution combustion process followed by hydrogen reduction. The influence of glycine to ferric nitrate ratio (G/Fe) on the combustion behavior and morphology evolution of the combusted powder was investigated. The effect of reduction temperature on the morphology and crystallite size of the obtained γ-Fe50%Ni powder was characterized. Porous γ-Fe–Ni powder with crystallite size below 100 nm was obtained after reduction. The Fe–50%Ni powder reduced at 700 °C has the maximum saturation magnetization and the minimum coercivity values of 156.33 emu/g and 37.2 Oe, respectively.