Abstract
The solid-state interfacial state of aluminum pow- ders was investigated upon inert gas, ball number and size, millingtime,speed,andprocessingcontrolagent(PCA)under high energy planetary mechanical alloying in sub-micron scale. The study observed significant variations in morpholo- gyofthemilledpowdersatdifferentmilling parametersdueto the fracturing and cold welding mechanisms. The uses of different ball numbers and sizes, and with higher rotating speed have resulted in further agglomeration. However, the adding of methanol as the PCA has provided the effective fracture mechanisms, by modifying the surface properties of the deforming particles to overcome the cold welding, hence reducing the particle sizes and changing the morphological shape to granular structures. The milling parameters have been proposed to also include 100 stainless steelballs with 10 mm in diameter, 200 rpm rotational speed, performed under theargon gas for 30 h to effectively produce finer particles and homo- geneity in the particle distribution for future sintering process.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
