Abstract
Four different powders were produced, pure aluminum together with iron powders were mechanically alloyed (MAed); each elemental powder was mechanically milled (MMed); only pure aluminum powder was MMed, and subsequently MMed powder was added to pure iron powder, each elemental powder was mixed (Mixed): The all powders were consolidated into bulk materials by spark plasma sintering (SPS) Effects of MA, MM+MM, MM or Mix processes on magnetic properties of the SPS materials were evaluated by vibrating sample magnetometer The formation of Al_5Fe_2 was observed in MA and MM+MM SPS materials On the other hand, the aluminide compounds were not formed in the MM SPS material and Mix SPS material Formation and amount of the aluminide compounds were controlled by changing the process from MA to MM processing As a result of suppression of formed alminide compounds, magnetic properties were improved in the SPS materials fabricated from powders produced by MM for only pure aluminum and Mix powder
