Studies of X-ray amorphous phase in mechanochemical synthesis of iron silicides from elements

Abstract

Iron disilicide synthesis was developed by means of mechanochemical activation under intensive mechanical treatment. The X-ray amorphous phases formed during mechanical treatment of initial iron and silicon were investigated. The methods of the differential dissolution, differential thermal analysis and X-ray phase analysis were used. The formation of supersaturated amorphous solid solution of silicon in iron with limited concentration 17 at.% Si takes place during the initial period of activation. Primary phase obtained in this system is iron monosilicide formed in the decomposition of amorphous supersaturated solution.