METHOD FOR PREPARING Fe BASED NANO-POWDER USING MILL SCALE

摘要

PURPOSE: A method for preparing Fe based nano-powder using mill scale is provided to prepare nano-powder having good quality by forming double phased mill scale into single phase, mixing the single phased mill scale with other types of metal oxides, milling the mixture thereof and hydrogen reducing the mixture. CONSTITUTION: The method comprises a step of forming the double phased mill scale into single phased mill scale by heat treating double phased mill scale collected in the air; a mixing and milling step of ball milling the mixture after mixing the single phased mill scale with other types of metal oxides; and a step of reducing the mixture powdered through the mixing and milling step in a reduction furnace, wherein the heat treatment process is performed at a temperature of 500 deg.C or more.