Investigation on effect of sintering temperature on structural, morphological and magnetic properties of pure and tin doped nickel ferrites for soft magnetic device applications

Based on the importance of the understanding of the ferrite material properties at high temperature conditions, the present authors made re-investigation for pure and tin doped nickel ferrite materials at sintering temperature conditions such as 900 to 1200°C with 100 deg interval. Crystallographic phase stability and grain size effects of pure and doped test samples with respect to temperature are evaluated by powder X-ray diffractometer (PXRD). Surface morphology and magnetic phase stabilities are details are examined by the scanning electron microscope (SEM) and vibrating sample magnetometer (VSM). Fortunately, 1200 deg/C sintered pure and tin doped title material showed the good crystalline nature and high statured saturation magnetization compared to other samples due to the re-crystallization effect taking place by the impact of sintering temperature. The triangle correlation of structural – morphological- magnetic properties is discussed.