Professor of Materials Science & Engineering and Director of the Materials Characterization and Processing Center, Johns Hopkins University, with a joint appointment at Pacific Northwest National Laboratory
"High Entropy Alloys through the Looking ‘Glass’: Characterization as a Pathway to Discovery"
In this talk, an overview of the challenges and opportunities in characterization of high entropy alloys is discussed. Topics range from atomic to mesoscale structural interrogation to platforms for understanding alloy behavior in their target environments using in situ and operando techniques, including high throughput methodologies. Finally, translation of this information toward alloy discovery, classification, and development is reviewed.
Mitra Taheri is a Professor of Materials Science and Engineering and the Director of the Materials Characterization and Processing (MCP) Center at Johns Hopkins University (JHU). Prior to her position at JHU, Taheri held the Hoeganaes Endowed Chair Professorship in the Department of Materials Science & Engineering at Drexel University. She has received numerous awards, including but not limited to: NSF Career Award, DOE Early Career Award, ONR Summer Faculty Fellowship, Microscopy Innovation Award, R&D 100 Award, US Steel Graduate Fellowship, and MRS Graduate Student Award. Taheri obtained her PhD from Carnegie Mellon University, where she received a US Steel Graduate Scholarship, a Materials Research Society Graduate Student Award, was inducted as a member of Sigma Xi, and was a visiting scholar at RWTH Aachen University, the National Center for Electron Microscopy (LBL), and Northwestern University’s Center for Atom Probe Tomography. Following her doctoral studies, Taheri was an NRC Postdoctoral Fellow at the Naval Research Laboratory (NRL) and a Director’s Postdoctoral Fellow at Lawrence Livermore National Laboratory (LLNL), where her group’s work on the Dynamic TEM project received an R&D 100 award, a Nano-50, and the Microscopy Society of America’s Microscopy Innovation Award. She has received the NSF and DOE Early Career awards, an ONR Summer Faculty Fellowship, and was faculty scholar at the Politecnico di Milano, in Milan, Italy. Taheri has published over 100 articles in journals such as Science, Nature Communications, ACS Nano, Nanoletters, and Acta Materialia, and has garnered over 150 invited and keynote presentations and seminars across the world. She recently served on the editorial board for both the Journal of Materials Research and Nature Scientific Reports.
Taheri leads the Dynamic Characterization Group, focusing on the development and use of innovative in situ microscopy and spectroscopy to characterize microstructural evolution and properties of materials in a wide variety of environments and external stimuli. Her current research focuses on the following topics: instrumentation development for electron microscopy and spectroscopy; machine learning; high throughput methodologies; physical metallurgy and in particular, understanding microstructural evolution; materials processing; metal additive manufacturing (3D printing), magnetic composite development; optimization and in situ processing of quantum materials, 2D materials, and surfaces; and biomaterials, with a particular focus on maternal fetal medicine.