November 1, 2022 @ 9:00 am - 10:00 am
Disorder by design: Applications and modeling of high-entropy ceramics
Corey Oses, Assistant Professor, Department of Materials Science and Engineering, Johns Hopkins University
JHU Homewood campus, Malone Hall, G 33/35
High-entropy ceramics break with traditional miscibility rules, offering compositional flexibility with enhanced and emergent properties. Employing disorder as a design principle has given rise to a new generation of thermal protection barriers, wear- and corrosion-resistant coatings, thermoelectrics, batteries, and catalysts. Engineering these materials for applications demands an understanding of the mechanisms governing synthesizability and performance, a challenging task often resolved within a limited context or neglected altogether. A simple modeling paradigm is presented that has already led to the discovery of new metal-carbide systems achieving high hardness values and tunable plasmonic properties as predicted. Promising new research directions for high-entropy ceramics will also be discussed.
Corey Oses, an assistant professor of materials science and engineering at Johns Hopkins University, leads the Entropy for Energy laboratory focusing on the discovery of materials for clean and renewable energy. Specifically, Oses looks to leverage the stabilizing effects of disorder to innovate clean hydrogen production, waste-heat conversion, and electric grid technologies. He completed his bachelor’s degree in applied and engineering physics from Cornell University in 2013 and his PhD in materials science from Duke University in 2018. Oses is also a lead developer of the aflow++ software framework for autonomous materials design. More information can be found at entropy4energy.ai.