Abstract
Surface roughness or texture is one of the key parameters for liquid fluids or liquid metals to achieve good or poor wetting. In certain applications surface roughness of a smooth surface [mirror finish] is treated as a slippery surface for poor wettability however in a few applications’ roughness surfaces are considered as better wetting, especially for liquid metals. In this regard, to understand the parameters for the optimum surface roughness of the substrates to achieve good wetting is essential. In the present review paper, an attempt has been made to find the ideal roughness value of the substrate for better wetting of liquid metals or alloys based on substrates and fluids.
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