Studying Dielectric and Magnetic Properties of Nano Ferrite Functionally Graded Materials

Functionally graded materials (FGMs), with ceramic -ceramic constituents are fabricated using powder technology techniques. In this work three different sets of FGMs sample were designed in to 3 layers, 5 layers and 7 layers. The ceramic constituents were represented by hard ferrite (Barium ferrite) and soft ferrite (lithium ferrite). All samples sintered at constant temperature at 1100oC for 2 hr. The magnetic properties showed an increase in coercive force (Hc) with increased number of layers. The dielectric properties measured at room temperature with constant frequency 1 MHZ. The results showed the dielectric constant increase with the increase the number of layers from (1.39×10-2) to (2.83×10-2).