Regensburg 2022 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 13: Nanostructures at Surfaces 2
O 13.8: Vortrag
Montag, 5. September 2022, 16:45–17:00, S052
AFM studies of ion-exchange treated glass surfaces — •Fabian Höhn1,3, Fabian Ullmann1,3, Norbert Arndt-Staufenbiel2, and Stefan Krischok1,3 — 1Institute of Physics, TU Ilmenau, Weimarerstraße 25, 98693 Ilmenau, Germany — 2Fraunhofer Institute for Reliability and Microintegration, Gustav-Meyer-Allee 25, 13355 Berlin, Germany — 3Center of Micro-and Nanotechnologies, TU Ilmenau, Gustav-Kirchhof-Straße 7, 98693 Ilmenau, Germany
There is a big difference between the bond strength of glass and its respective tensile strength. The reason for this discrepancy is assumed to be so-called "microcracks", this surface damage is considered to massively reduces the tensile strength. We assume that these damages widen by stretching the surface and become thus more visible. Another point that will be investigated, regarding this matter, is micro waveguides in glass. These are created by silver ion exchange in glass. It is assumed that the mentioned surface damages are a cause for reduced quality of these waveguides. For this purpose, we examine the difference in topography between untreated Gorilla V1 glass from Corning, a sample stretched using the three-point method and a sample in which a silver ion exchange was carried out on the surface. The difference in topography is first described qualitatively and then determined quantitatively with roughness parameters. Finally, a comparison of the three samples should provide an insight into the topography of glasses under stress and a contribution to the optimization of the mentioned waveguides.