| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Thermodynamics of Materials in Extreme Environments
|
| Presentation Title |
Expanding Metastability Beyond Glasses and Undercooled States in Metals |
| Author(s) |
Martin Thuo, Andrew Martin, Alana Pauls |
| On-Site Speaker (Planned) |
Andrew Martin |
| Abstract Scope |
A recent publication on the Kauzmann paradox suggests that it is an unresolvable challenge. Here we argue and demonstrate that a narrow view of the thermodynamic free energy space hinders resolution of this entropy paradox. Starting with the undercooled metal particles, we demonstrate that processing and in situ generated stressors can affect free energy of phase transition allowing us to perturb and produce an array of metastable soft metals at the microscale. Felicitous choice of stimuli allows us to ‘walk’ metal particles along their relaxation path. Investigation of the associate entropy and Ehrenfest discontinuities implies that these metastable states undergo higher order phase transitions. We adopt a simple heuristic model to predict progress towards design rules that can abet expansion of the metastable materials state into at least three-dimensional space, with potential for higher dimensions. |