#6673. The effect of ball to powder ratio on the processing of a novel Mo-Cu-Al2O3 composite

October 2026publication date
Proposal available till 01-06-2025
4 total number of authors per manuscript0 $

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Journal’s subject area:
Metals and Alloys;
Mechanical Engineering;
Mechanics of Materials;
Materials Chemistry;
Ceramics and Composites;
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Abstract:
In the present article a 45Mo-45Cu-10Al2O3 (wt%) nano-composite was produced by mechanical alloying, shaped by cold pressing then by hot pressing at 950 °C. Our aim was to investigate the effect of different ball to powder ratio (BPR) on the particle size and shape, as well as on the material composition. Investigations were done with XRD, SEM and for hot pressed specimens Brinell hardness measurement. Lower BPR resulted in nano-sized crystallites in the powder, a homogenous phase distribution and higher BPR resulted in even smaller crystallite sizes, but with ZrO2 contamination from the milling equipment.
Keywords:
Hot pressing; Metal matrix composite; Milling; Pseudo-alloy; Recrystallization

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