FABRIKASI MAGNET KOMPOSIT BERBAHAN DASAR MAGNET DAUR ULANG DENGAN PENGIKAT CULT

Abstract

Have been made use of inorganic wasteby recycling former magnet loudspeaker andcult into a composite using powder metallurgy techniques. Magnet powder and cult mixed by wet milling for 6 hours which aims to avoid the attachment of a mixture of materials on the wall sand grinder balls millling. The resulting mixture was dried using the oven, then filtered with as creen printing fabric T150. The mixture then added with PVA(PolyVynilAlcohol), then printed using a hydraulic press. Manufacture of composite magnetis focused to determine the crystal structure, constituent elements, and magnetic properties. Characterization by XRD and XRF is used to determine the crystal structure and constituent elements. For the characteristic of magnetic properties using Permagraph. Characterization results showed that the crystal structure is formedon samples belonging to the cubic space group with lattice parameters a= 5.8864Å and b= 23.1741Å. Magnet powder compound of the former contains two sizeable fraction of the weight of Fe(76.91%) and Ba(19.6%). Characterization induced remanent magnetic properties obtained which are increasing with the addition of magnetic material composition. At the coercivity irregularities in the composition of 50%:50% of which 0.233 kOe. This is possible on the composition of 50%:50% the size of the grains included in the range of Single Domain/SD so that the coercivity is a maximum price.