Synthesis, Characterization, and Studies of the Properties of Low-Cost Eco-friendly Hydrophobic Coating on Magnesium Alloy
摘要
The hydrophobic coating was applied on a Magnesium alloy substrate by a stearic acid coating, which is less harmful to the environment. The coating was done at a fixed temperature of 90 °C for one hour, two hours, and three hours, respectively. The hydrophobicity was studied by contact angle test. The maximum attained contact angle was 121°. The response parameter micro-hardness is measured at different coating times. Significant growth in micro-hardness has been observed in the coated sample, particularly with a maximum increase of approximately 35% compared to the bare sample, specifically for the sample coated for three hours. The appearances, surface morphology, and composition were analyzed by surface roughness, SEM, XRD, and EDX.