Synthesis and characterisation of advanced ball
01 09 2016· Amongst the early studies of this technique Prabhu et al employed a SPEX mill to synthesize Al Al 2 O 3 composite powders with volume fractions of 20% 30% and 50% and found that the Al 2 O 3 reinforcement materials were distributed homogeneously in the Al matrix after 20 h of milling at a ball to powder weight ratio of 10 1