INT-Colloquium "About manifold functionalities on material surfaces through periodic microtopography and microstructures based on Laserinterference"

Univ. Prof. Dr.-Ing. Frank Mücklich

Material Engineering Center Saarland, Saarbrücken, and
Chair for Functional Materials, Saarland University, Saarbrücken, German

Zoom-Meeting
https://us02web.zoom.us/j/81653406350?pwd=YnFubHBMWWNkSVZVL2pBNGlqc2ZkZz09
 
Meeting-ID: 816 5340 6350
Password: 931112

Abstract:

In the course of evolution, the material surfaces in living nature have often achieved their impressive perfect functionalization through optimized geometric microstructures. Whether e.g. wetting, friction or color effects, very different but periodic microstructures lead to the optimum performance. For this reason it is astonishing that we are still satisfied with the definition of roughness for our technical surfaces of components. Instead, we should make targeted use of the additional degrees of freedom of microstructural and microtopographic surfaces and the resulting possibilities of newly optimized functionality for the very wide variety of our technical surfaces.

Through the advanced use of pulsed laser radiation available today from the nanosecond range down to the ultra-short pulse range, we can exploit a variety of materials science processes to realize microstructural and microtopographic structuring for practically all types of materials. Direct Laser Interference Patterning (DLIP) plays a key role in the fast, geometrically precise but also extremely flexible realization. The talk will discuss ideal-typical examples that address a wide range of potential applications from e.g. extremely low-friction tribology to antimicrobial efficiency and drastically increased reliability of electrical contacts etc.