The synthesis of novel powder master alloys for the modification of primary and eutectic silicon crystals

Abstract

The effect of the high-energy synthesis of powder mixtures of aluminium granules, ferrophosphorous (Fe2P) and strontium salt (SrCO3) in a planetary mill was investigated on the structure of the resulting materials. Al–8Fe–2P, Al–10Sr and Al–10Sr–1P master alloys were synthesised, and the efficiency of these new alloys was demonstrated in the modification of an eutectic silicon in Al–12Si alloys and the complex modification of Al–18Si alloys.