Wettability of laser micro-circle-dimpled SiC surfaces

Surface wettability on laser micro-circle-dimpled SiC surfaces was discussed. The morphology on the substrate was measured by the white-light interfering 3D profile meter, and the chemical composition of the substrate was tested by the Energy Dispersive Spectrometer (EDS). Water contact angles measured on the dimpled SiC surfaces and the correlation between the dimple parameters and the contact angles were analyzed. The results show that the circle-dimpled texture enhances hydrophobicity of the SiC surfaces, and the diameter of the circle dimples has more obvious influence on the contact angles than other dimple parameters.