مطالعه تغييرات ساختاري اجزاي مخلوط FEZO3-C-AL بر اثر كار مكانيكي

The Effect of Mechanical Activation on Hematite-Graphite-Aluminum Mixture

In the present work, the effect of aluminum on mechanical activation of hematitegraphite-aluminum mixture has been investigated. Various amounts of aluminum powder (0 to 10 wt%) was added to hematite-graphite mixture (C/O=l or 18.40 wt% graphite). Then, the mixture was mechanically treated by means of ball milling within different time periods, from 0 to 10 hours. XRD and SEM tests were carried out to study the effect of aluminum and milling time on activation mechanism of the mixture. It was found that existence of aluminum particles, as formable material, in the brittle hematite-graphite mixture could influence on the microscopic condition and subsequently on the behavior and intensity of mechanical activation of the mixture.