Figure 1
From: Generation of Scratches and Their Effects on Laser Damage Performance of Silica Glass

The size distribution and morphology of abrasives used in the experiments.
(a) Size distribution of abrasives measured with a laser scattering size analyzer; (b) SEM image of Al2O3; (c) SEM image of CeO2; (d) SEM image of SiC W7. It is apparent that agglomeration forms in Al2O3 and CeO2 abrasives while agglomeration is seldom found in SiC.