X-Ray diffraction study of the microstructure of C60 fullerite powder after grinding in a planetary ball mill

The profiles of diffraction peaks of C60 fullerite were used to follow changes in the microstructure of C60 powder during grinding in a planetary ball mill at a rotation rate of 500 rpm and milling time of 8 h. The results demonstrate that grinding for just 1 h leads to a significant decrease in crystallite size. With increasing milling time, the average crystallite size varies little, whereas the lattice strain increases considerably.