Icephobic Performance of Superhydrophobic CoatingsAli DolatabadiDepartment of Mechanical and Industrial EngineeringConcordia University

Abstract: Suspension plasma spraying (SPS) technique has been used to develop microtextured TiO2 coatings with a hierarchical surface roughness to develop superhydrophobic surfaces. Superhydrophobic coatings demonstrate extremely water repellent properties and can be potentially used for applications such as anti-icing, reduced drag and friction, self-cleaning and corrosion resistance purposes. The focus of this presentation is on engineering the hierarchical morphology or so-called “cauliflower” features using a parametric study approach to optimize the wetting properties of the coatings. It is demonstrated that by carefully designing and controlling the process parameters, rather fine and uniform dual-scale (hierarchical) surface textured coatings can be generated. Finally, icephobic performance of superhydrophobic surfaces are assessed both experimentally and also through a detailed numerical modeling of cloud-sized droplet impact and solidification.

Bio: Ali Dolatabadi, PhD, PEng, FCSME, Professor and Concordia Research Chair -Tier I,

To find out more about Prof. Dolatabadi's research, you can consult his web pages.

Cette conférence est présentée par le RQMP Versant Nord du Département de physique de l'Université de Montréal et de Génie physique de la Polytechnique.