Time milling influence on the size of the Lemabang iron sand powder synthesized by using high energy milling method

Abstract

Has been synthesized iron sand from the Lemabang-Sumsel Area by using High Energy Milling Method. Before synthesized, extraction of Lemabang iron sand in advance by using permanent magnets and Methanol-Soap Bathed Method in order to separated iron sand and impurities. After it, iron sand milled by using High Energy Milling with variations in milling time 2 hours, 4 hours, and 6 hours. Milling time optimization done in order to see the effect of time milling on powder size and surface morphology. Then Iron sand already in milling characterized by using XRD to see crystal structure and crystal size, and SEM-EDS used to see surface morphology and composer elements. XRD’s result show that, the longer of the milling time resulting the shorter of the powder size. Whereas the results of the SEM-EDS’s photo, its seem that the grain morphology of the iron sand powder after milling is smoother and more homogeneous be compared before milling