| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Structure and Dynamics of Metallic Glasses
|
| Presentation Title |
Stress-strain curves for hard-sphere colloidal glasses: experiments and microscopic analysis |
| Author(s) |
Frans A. Spaepen, Aidan J. Duncan, J. Zsolt Terdik, Katharine E. Jensen |
| On-Site Speaker (Planned) |
Frans A. Spaepen |
| Abstract Scope |
Colloidal glasses, composed of micron-size hard spheres, are attractive systems for the experimental study of the deformation of glasses. Tracking the motion of the individual particles by confocal microscopy over a large sample volume allows both local and macroscopic strain measurements. By coupling the glass to a calibrated highly compliant elastic gel, the macroscopic stress can be measured. The resulting stress-strain curves can divided into elastic, anelastic and plastic contributions. The magnitude of each of these is associated with cooperative multi-particle local events, identified from the measured particle displacements. An important quantitative check on these identifications is the requirement that they add up to the macroscopic behavior, similar to the Orowan relation between macroscopic strain and the motion of dislocations. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Mechanical Properties, Other, |