Surface Porosity of Natural Diamond Crystals after the Catalytic Hydrogenation

The study of diamond surfaces is traditionally undertaken in geology and materials science. As a sample material, two natural crystals type Ia were selected, their luminescence nitrogen state was characterized. In order to etch the surface catalytic hydrogenation performed using Fe particles as an etchant. Micromorphology investigated by scanning electron laser confocal microscopy. It demonstrated that etching occurred perpendicular crystal surface, with no signs tangential etching. average depth caverns did not exceed 20–25 μm maximal 40 μm. concluded diamonds effective produce porous can be used composites or substrate material. Additionally, comparison results microsculptures observed on impact from Popigai astrobleme revealed strong resemblance.