Abstract
The effect of reaction milling condition on Si-C solid state reaction and sintering process was characterized by the peak of SiC lattice plane (111) measured by X-ray diffraction analysis. SiC nano-powder can be synthesized from Si and C elemental powders using a reaction milling process and the milling condition affects the nature of formed SiC. In this research, total input energy: P* on Si-C reaction milling under adiabatic condition were calculated by collision model equation at which control factors were revolution speed, total milling time, and so on. The Si-C solid state reaction correlated closely with the calculated P* and the reaction to form SiC nanopowder was complete at P* higher than 1.0×1012kJ/g. Furthermore, this nanopowder could be sintered without process control agents at the lower temperature compared to the temperature of conventional sintering with sintering agents, 2000oC. These results will be discussed with X-ray analysis, morphologies and thermodynamic calculation.
