Effect of Substitution on the Dielectric and Magnetic Properties of BaFe12O19

Hexaferrites are composed of irons and many other divalent metal ions in various atomic ratios. They classified as M, W, X, Y, Z, U type according to the crystalline structure. also used ferromagnetic compounds. These materials have been utilized permanent magnets, magnetic recording media microwave absorbers due their superior properties. wide application ferrofluids, sensors, loudspeakers, electric power generation, rotors small direct current (DC) motors, automotive electronics, ferrite cores, fabrication inductors, micro electro mechanical systems (MEMS), capacitors, transistors, microwave, magneto static electromagnetic devices. BaFe12O19 has gain focus recent years its large coercivity, high anisotropy, relatively saturation magnetization, electrical resistivity, low cost, ability resist corrosion. The Present chapter will on effect substitution dielectric properties BaFe12O19. Morphology barium hexaferrites, Co-Ti nanocrystalline rare-earth structural covered.