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

摘要

The effect of the high-energy synthesis of powder mixtures of aluminium granules, ferrophosphorous (Fe_2P) and strontium salt (SrCO_3) 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.