Nanocomposites produced by mechanical alloying of the Al50Fe25Ti25 powdersmixture

Nanocomposite powders were produced by high energy ball milling of the Al50 -Fe25-Ti25 (at.%) powder mixture added with ethanol (C2H5OH) and ammonium c arbonate ((NH4)(2)CO3). The phase transformations occurring in the material during the process were monitored by X-ray diffractometry and the structur es of the milled samples were examined using transmission electron microsco py. The nanocrystalline composite powder, consisting of complex (Ti,Al)C ca rbide distributed in the Fe(Al) matrix was obtained as the final product of the milling with participation of ethanol whereas the process performed wi th an addition of ammonium carbonate led to the formation of (Ti,Al)N-Fe(Al ) nanocomposite.