Pengaruh Ball Milling Dua Tahap Terhadap Suseptibilitas Magnetik Dan Komposis…

The effect of two-stage ball milling on the magnetic susceptibility and particle composition of the natural sands of Rokan River has been carried out. The sample was processed using Iron Sand Separator (ISS). The product of ISS was milled using ball milling for 80 hours using two stage ball milling with time variations for 20 hours, 30 hours and 40 hours with milling ball diameter of 1.5 cm…