Graduate Seminar Series
March 03, 2023
10:00 a.m. ET
7500 Wean Hall
March 03, 2023
10:00 a.m. ET
7500 Wean Hall
Nearly all structural and functional materials are polycrystalline systems; they are composed of crystalline grains that are internally joined at grain boundaries (GBs). Even minute amounts of dopants at GBs result in profound changes to GB dynamics, specifically grain growth during processing treatments or under high-temperature operating conditions. While GB solute segregation has been the subject of active research, most existing studies focus on the thermodynamics of GB segregation and the kinetic role (i.e., dynamic solute drag) remains unexplored. The challenge here is that GB solute drag depends on several properties, such as alloy thermodynamics (e.g., heat of mixing), and kinetic processes including GB solute diffusion and boundary migration; solute drag is a hypersurface. In this talk, we present physics-informed neural networks (PINNs) to investigate GB solute drag in regular solution metallic alloys. The PINN model not only predicts the solute drag hypersurface, but also honors the nonlinear governing equations describing GB segregation and solute transport. Representative PINN results are presented to reveal new insights about the roles of asymmetric GB segregation and solute-solute interactions in drag effects. In broad terms, our modeling approach provides avenues to detangle the thermodynamic and kinetic roles of GB segregation in grain coarsening of a wide range of metallic alloys.
December 6 2023
3:00 PM ET
Materials Science and Engineering
Chemo-Mechanical Interactions to Improve Intestinal Retention of Ingestible Medical Devices, presented by Durva Naik
2327 Wean Hall
December 8 2023
12:00 PM ET
Materials Science and Engineering
Unraveling the governing factors for cholesteric liquid crystal self-assembly of polysaccharides presented by Cécile A. C. Chazot, Northwestern University
Scaife Hall 105
December 8 2023
1:00 PM ET
Materials Science and Engineering
Cylindrical Grain Boundary Motion in the Isoconfigurational Ensemble, presented by Anqi Qiu
2327 Wean Hall
December 12 2023
9:00 AM ET
Materials Science and Engineering
Ph.D. Program Information Session
Join us for a virtual discussion about becoming part of the Materials Science and Engineering graduate student community.
Zoom link to be shared upon registration
December 12 2023
2:00 PM ET
Materials Science and Engineering
Ingestible Electronics for Diagnostics and Therapy, presented by Gaurav Balakrishnan
Scott Hall 6142
December 13 2023
9:00 AM ET
Materials Science and Engineering
Masters Program Information Session
Join us for a virtual discussion about becoming part of the Materials Science and Engineering graduate student community.
Zoom link to be shared upon registration