A Unidade de Investigação “Vidro e Cerâmica para as Artes” convida para a palestra do artista Carlo Pantano, intitulada “Chemical Stability of Glass Surfaces and interfaces”, que terá lugar na sala 217 D do edifício Departamental, Campus de Caparica, no próximo dia 12 de Janeiro, pelas 14H30.
Department of Materials Science and Engineering
Materials Research Institute
The Pennsylvania State University
“Chemical Stability of Glass Surfaces and Interfaces”
Physical and chemical adsorption phenomena at glass surfaces mediate many important properties including chemical durability, strength, friction, wetting and adhesion. Although the composition of the glass and reactivity of the environment are primary factors determining the reactivity/stability of the surface, the processing that leads to creation of the glass and its surface can also play a role. In some cases, this is due to effects of processing on surface composition, while in others it is due to fictive temperature/structure effects. We have used both laboratory and manufactured glass fibers and flat glasses, and a variety of surface sensitive techniques, to understand the mechanisms through which composition and processing influence the surface reactivity and stability of multicomponent glasses and their interfaces. The talk will focus on both the surface of glass and a variety of methods employed to characterize surfaces and interfaces, in general.