ABSTRACT
Sintering of composites based on nano-dispersed components of the system Fe-C at high pressures is of considerable interest because of the possibility to obtain improved physical and mechanical properties, in particular hardness and wear resistance [1]. Previously it was shown that during sintering under high pressure (4-5 GPa) and temperature (9501200°C), based on the nanocomposite with addition of Fe 3-10 wt. % of nanocarbon formation of superhard carbon phase occurs not only because of the fullerenes, but also from other, cheaper nanodisperse carbon materials - soot containing fullerenes, multi-walled nanotubes, fullerene black [2]. As a result, it assumed a leading influence on the formation of “superhard carbon phase” in the Fe-C composites dispersion of nanocarbon component and sintering technology of material [3]. Therefore, it seemed appropriate to explore the possibility of preparing a solid C-Fe composite with prevalence of superhard carbon phase and a reflux ratio of the components of iron and carbon.
