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Mechanical alloying (MA) as a novel powder processing technique has at-tracted increasing interest in basic research and in many applications.High energy ball-milling converts an initial powder blend into a composite powder with controlled microstructure. The introduction of iron impurities from the steel balls and/or the vial during the hall-milling processing is undesirable and unavoidable. However, the
Mechanical alloying (MA) as a novel powder processing technique has at-tracted increasing interest in basic research and in many applications. High energy ball-milling converts an initial powder blend into a composite powder with controlled microstructure. The introduction of iron impurities from the steel balls and / or the vial during the hall-milling processing is undesirable and unavoidable. However, the