Plenary Lecture 1

Plenary Lecture

On the Models of Thin Film Growth

Professor Gabriella Bognar
Director of Institute of Machine and Product Design
Faculty of Mechanical Engineering and Informatics
University of Miskolc
Hungary
E-mail: v.bognar.gabriella@uni-miskolc.hu

Abstract: The theoretical description of the formation and the spatio-temporal distribution of solid amorphous thin films by deposition processes is considered. In a wide range of technological and industrial applications is the manufacturing of coatings with prescribed morphology has attracted interest. By controlling the surface properties one can control the thickness, the composition and create surfaces with desired purposes. The evolution of the surface morphology during deposition process results from a competition between the molecular flux and the relaxation of the surface profile through surface diffusion. The aim is to describe the coarsening process, to present results showing that surfaces can be mathematically and physically classified into different categories, to provide analytical results on the wavelength and amplitude. Numerical simulations are presented to show the roughening and coarsening of the surface pattern and the evolution of the surface morphology in time.

Brief Biography of the Speaker: Professor Bognar received the M.Sc. in Mechanical Engineering from University of Miskolc, Miskolc, Hungary, Ph.D. and 'Candidate' degree in mathematics from the Hungarian Academy of Sciences, Doctor of Science in mechanical engineering. Since her graduation she has been teaching different subjects of mathematics and engineering for undergraduate, graduate and doctoral students at University of Miskolc. She was conferred the postdoctoral lecture qualification (Dr. habil) in 2006. Her research interests include boundary and eigenvalue problems of nonlinear ordinary and partial differential equations in fluid mechanics and tribology. Gabriella Bognar has authored/edited 12 books, and published over 180 research papers. She also serves as the Vice Dean for Research and International Affairs at the Faculty of Mechanical Engineering and Informatics, University of Miskolc.