Wednesday, January 28, 2015 @ 3:00 PM
Metallic glasses respond to radiation in qualitatively different ways than crystalline solids. I will describe two distinctive mechanisms of radiation response in metallic glasses, identified through a series of ½ billion-atom simulations using molecular dynamics. In the first, inter-nuclear scattering causes localized melting and quenching at rates approaching 1014 K/s, giving rise to nanoscale “super-quenched zones” (SQZs) with exceptionally high free volume. In the se...
Wednesday, February 4, 2015 @ 3:00 PM
In an energy landscape with increased environmental concerns and reduced availability of fossil fuels, electrochemical systems will likely play a major role for automotive and grid-storage applications. For the discovery and integration of materials that provide low-cost, long-lifetime solutions, both microscopic and macroscopic theory play an important role. Microscopic theory may predict materials with the desired behavior, while macroscopic modeling extracts critical ...
Maureen Tang joined the faculty of Chemical and Biological Engineering at Drexel University in Fall 2014. She received her B.S. in Chemical Engineering from Carnegie Mellon University and her Ph. D. from the University of California, Berkeley. She has also completed postdoctoral work at Stanford University and research internships at Kyoto University, the University of Dortmund, and Dupont. Her research at Drexel develops materials, architectures, and fundamental insight...