סמינר המחלקה להנדסת מכונותביום שלישי 22.3.16 בשעה 13:15
Lateral and Normal Adhesion Forces at the Interface between a Liquid Drop and a Substrate
Dept. of Chemical Engineering, Lamar University
A novel tool, the Centrifugal Adhesion Balance, allows for the first time to measure the adhesion between a liquid drop and a solid substrate. Both lateral and normal forces are considered as well as the way they influence each other.
We will also review applications of this fundamental study: biotechnological related applications include liquid adhesion to skin tissues, insect feet adhesion to solids, and contact lenses to tear fluid adhesion. Materials applications include filtration and membranes study, fuel cells, and oil brine rock adhesion. If time allows, we will proceed to compare drops that resist motion with drops that move spontaneously, on their own accord, increasing their gravitational potential energy.
About the Speaker: Dr. Rafael Tadmor earned his B.Sc. (1992) and M.Sc. (1994) in Chemical Engineering from the Technion and his Ph.D. (2000) from the department of Materials and Interfaces, at the Weizmann Institute of Science. He then moved to U.C. Santa Barbara where he was a post doc with Prof. Jacob Israelachvili at the department of Chemical Engineering, following which he joined (2003) the department of Chemical Engineering (now the Dan F. Smith Department of Chemical Engineering) at Lamar University as an Assistant Professor. Since 2009 he has been an Associate Professor there. Rafael’s research interests include wetting phenomena, surface forces, and intermolecular forces. He won a number of awards and recognitions throughout his career. Currently he is a Lady Davis visiting professor at the Technion on behalf of Lamar University.