Characterization of Superfine TiC Powders by Positron Annihilation Technique and High Resolution Electron Microscope

摘要

By means of positron annihilation technique and hign resolution electron microscope, superfine TiC powders obtained by ball-milling process were characterized at atomic scale. Results showed that there was a clear connection between a change in TiC powders and a change in the PAT parameters, and it was also confirmed by HREM results.