Investigation on structural and magnetic properties of Calcium doped magnetite

In this research, magnetite nanoparticles and magnetite substituted by calcium ions nanoparticles using by stoichiometric ratio of metal chloride powders and sodium hydroxide as sediment agent by Co-precipitation Method. First, magnetite nanoparticles prepared in special conditions. Afterwards, effect of substitution of calcium ion on structural and magnetic properties of magnetite nanoparticles was to be considered. Phase combination, microstructures and kind of bonding in powders and structural and magnetic properties of nanoparticles using by X-ray Diffraction analyze (XRD). Far Fourier Transmission Infra Red (far FT-IR) and Vibration Sample Magnetometer (VSM) to be considered. The results of X-ray diffraction shows that the all sample for single-phase samples have been crystallized. The results of far Fourier Transmission Infra-Red show that magnetite crystal structure is formed. The result of Vibration Sample Magnetometer shows that increasing the amount of calcium, reduced saturation magnetization.

کلیدواژه ها:

magnetic properties ، Magnetite ، Magnetite substituted by calcium