Mechanical Milling: a Top Down Approach for the Synthesis ...
Lee et al[104] studied the Phase evolution of Fe 2 O 3 nanoparticle during high energy ball milling. Highenergy ball milling of αFe 2 O 3 powder was performed in a stainless steel attritor at a speed of 300 rpm for 10–100 h. The powdertoball mass ratio was 1:50 with a powder mass of 100 g.