Mark Asta, University of California, Berkeley and Lawrence Berkeley National Laboratory
Concentrated Alloys: Order, Disorder, and the Vast Space in Between
For seminal contributions to theory, computational modeling, and education on the structural, thermodynamic, and kinetic properties of phases, surfaces, and interfaces of materials..
The David Turnbull Lectureship recognizes the career contribution of a scientist to fundamental understanding of the science of materials through experimental and/or theoretical research. In the spirit of the life work of David Turnbull, writing and lecturing also can be factors in the selection process.
The past decade has witnessed intense interest in the materials science of chemically complex, concentrated alloys. Although it is often assumed complex solid solutions are stabilized by ideal configurational entropies, recent investigations have raised the prospect of pronounced chemical short-range order (SRO) with possibly significant effects on properties. This lecture will review mechanisms underlying SRO formation and present results of simulations and collaborative experimental studies, exploring its impact on deformation mechanisms, metastability and materials design.