Deformation-Induced Structural-Phase Transformations during Mechanosynthesis of Fe–Fullerite in Toluene

Resumo

Abstract—X-ray diffraction, Mössbauer and Raman spectroscopy have been used to study structural phase transformations during mechanosynthesis of Fe–С_60/70 in toluene with 20 and 25 at % С_60/70 fullerite. The quantitative carbon content determines the phase composition of mechanocomposites. (Fe₃C)_D forms at 20 at % С_60/70, whereas Fe₇C₃ and a paramagnetic phase form at 25 at % С_60/70 at the initial stage of mechanical alloying. Free carbon is in an amorphous state in the sample. The formation mechanism of carbides and a paramagnetic component is discussed.