Nanosized MnFe2O4 ferrites were synthesized by the sol-gel combustion method. These particles were prepared from

metal nitrates and citric acid. The effect of PH on particle sizes and crystallinity of the samples ...

nanoparticles can be transferred to superparamagnetic ones if their particle size reduces to less than 14 nm. As well, crystalline to amorphous transition by phosphorus addition led to preparation of paramagnetic nanoparticles. Magnetic properties measurement...

This paper investigates a method to achieve a close to superparamagnetic behavior in Ni-Al2O3 nanocomposite synthesized by solution combustion. The starting materials used are nickel and aluminum nitrates, as oxidizers, ...