In this study,Mg-Al substituted barium hexa-ferrite of BaFen-2xMgxAlxO_(19)(x=0-0.2)materials using co-precipitation method at a calcination temperature of 1200°C for 2 hours were carried out.The precursor concentrations of the mixture were varied to identify the optimum sample.The final powder was characterized by using XRD,FE-SEM,and VSM.The XRD shows that the Mg-Al substitution was not change the micro-structures of barium hexa-ferrite.FE-SEM observation was carried out on the surface of hexagonal shape of barium hexa-ferrite.The magnetic properties shows that the decreases saturation(Ms),remanence(Mr)and coercivity(Hc).The optimum condition was obtained on x=0.2 with Ms= 29.28 emu/g,Mr= 15.33 emu/g,Hc= 1259 Oe.
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