Co-precipitation synthesis of LaFe1-xAlxO3 (x = 0–0.2) on structure and electromagnetic properties

Abstract

The synthesis of LaFe_1-xAl_xO₃ (x = 0–0.2) on the structure and electromagnetic properties using the co-precipitation method were evaluated. LaFe_1-xAl_xO₃ (x = 0–0.2) materials were synthesized using lanthanum chloride and natural iron sand powders. The mixing process of precursors was held with a hotplate temperature of 60 °C. The calcination process was done at 400 °C for 2 h. Then samples were analyzed using X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Vibrating Sample Magnetometer (VSM), and CV meter. The XRD patterns result in two phases of LaFeO₃ and Fe₂O₃. SEM images were performed that the powders are porous agglomerates. The particle size distribution is shown in the histogram that the samples are in the range of 50–500 nm, respectively. Then, the magnetic properties measurement of VSM analysis studied the substitution of Fe to Al ions decreases magnetic properties and BHmax in LaFe_1-xAl_xO₃ (x = 0–0.2). The I-V measurements conducted the substitution of Fe to Al ions increase with a nonlinear reversal current in LaFeO₃. These results show that LaFe_1-xAl_xO₃ (x = 0–0.2) was recommended as the magnetic permanent material and perovskite material based on electromagnetic properties.