The innovation engine for new materials

The Role of Surfaces in Mechanical Behavior Across Scales

Seminar Group: 


Prof. Tevis Jacobs


Mechanical and Materials Science
University of Pittsburgh, PA


Friday, March 24, 2023 - 10:30am


MRL Room 2053


Prof. Angela Pitenis

Surfaces have a profound effect on the mechanical behavior of materials. Our group uses in situ transmission electron microscopy and other characterization techniques to explore these connections across scales. First, I will focus on the effect of surface structure and chemistry on the adhesion and compression of nanoparticles. We use in situ mechanical testing inside of a transmission electron microscope to reveal how surface mechanics and surface chemistry govern properties. Second, I will focus on recent efforts to scale up these insights to predict the performance of large-scale systems. Similar to the role of microstructure in governing bulk performance, we strive to use surface structure to rationally tailor surface performance.