Efek Aditif Femo dan Proses Kalsinasi pada Serbuk Magnetik Bafe12o19

EFFECTOF FeMo ADDITIVEAND CALCINATION PRoCESS ONMAGNETIC POWDERS BaFe12O19. In this study, we have been investigated the effect of FeMo additive and calcination proCess in magnet permanent bariumhexaferrite. The permanentmagnet of bariumhexaferrite was prepared bymechanical alloying method. The mixing powder of BaFe12O19 and FeMo was calcinated on 1000 and 1200 oC prepared of temperature. The characterization was done for physical and magnetic properties with X-ray Powder Diffraction (XRD) and piknometer for the phase ofmaterial and the powder density and then Vibrating Sample Magnetometer (VSM) for the magnetic properties of barium hexaferrite magnet. The experiment result showed analysis that addition of FeMo increased the powder density of barium hexaferrite. The magnetic properties result showed that increasing of FeMo additive make deacreassing of magnetic characterization.While the more addition of FeMo can be increases remanence, saturation, and BH max Even though deacreases the coercivity. The increasing of calcination temperature can increases remanence and BH max but deacreases saturation and coercivity. It means the proCess can changes themagnet structure fromhard to soft magneticmaterial. The optimumvalue, when the barium hexaferrite add %wt 5 FeMo additive with 3.71 g/cm3 powder density before calcination proCess. And the magnetic properties such as: saturation 2.12 kG, remanence1,15 kG, coercivity 0,45 kOe dan BHmax0,145 MGOe after calcination process at 1000 oC