Magnetic, Electrical, and Physical Properties Evolution in Fe 3 O 4 Nanofiller Reinforced Aluminium Matrix Composite Produced by Powder Metallurgy Method.

An investigation into the addition of different weight percentages of Fe 3 O 4 nanoparticles to find the optimum wt.% and its effect on the microstructure, thermal, magnetic, and electrical properties of aluminum matrix composite was conducted using the powder metallurgy method. The purpose of this research was to develop magnetic properties in aluminum. Based on the obtained results, the value of density, hardness, and saturation magnetization (Ms) from 2.33 g/cm 3 , 43 HV and 2.49 emu/g for Al-10 Fe 3 O 4 reached a maximum value of 3.29 g/cm 3 , 47 HV and 13.06 emu/g for the Al-35 Fe 3 O 4 which showed an improvement of 41.2%, 9.3%, and 424.5%, respectively. The maximum and minimum coercivity (Hc) was 231.87 G for Al-10 Fe 3 O 4 and 142.34 G for Al-35 Fe 3 O 4 . Moreover, the thermal conductivity and electrical resistivity at a high weight percentage (35wt.%) were 159 w/mK, 9.9 × 10 -4 Ω·m, and the highest compressive strength was 133 Mpa.