... of graphene increases, the micro-arc oxidation voltage first rises and then decreases, resulting in an overall higher voltage compared with the undoped samples. The thickness and hardness of the coating layers exhibit an initial increase followed by a decrease, while surface roughness initially decreases...

... that the most stable configuration for a liquid droplet on a rough solid surface appears only when the droplet base is axisymmetric. It is also demonstrated that the Cassie–Baxter equation pertains only to the droplet in the most stable state, where the excess free energy is minimized. Surface topography...

...Dory Cwickel, PhD; Yaron Paz; Abraham Marmur Wettability of rough surfaces is critical for many processes and materials. The most prevalent technique for characterizing wettability is the measurement of contact angles. Unfortunately, the routine assessment of wettability by contact angle...