| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Mechanical Behavior Related to Interface Physics IV
|
| Presentation Title |
Influence of Temperature on the Interlayer Strength of Muscovite, a Layered Solid |
| Author(s) |
Henry Q. Afful, Frank W. DelRio, Anastasia G. Ilgen, Corinne E. Packard |
| On-Site Speaker (Planned) |
Henry Q. Afful |
| Abstract Scope |
Muscovite is a naturally occurring highly anisotropic layered material with different interlayer and intralayer strengths. The abundance of muscovite in rock formations makes it less expensive than other layered solids like graphite. Understanding the mechanical behavior of muscovite can, therefore, help advance our understanding of other layered solids. During nanoindentation of muscovite, displacement bursts have been observed in the load-displacement data and these were associated with plastic deformation mechanisms including kinking, fracture, spalling and delamination. Other studies have associated some bursts with incipient kink bands which yield superelasticity. The evolution of the mechanical deformation with temperature remains unknown and limits an understanding of the thermal activation of the associated mechanisms. In our study, we conducted nanoindentation on muscovite using a Berkovich tip up to 400C to study the deformation behavior. We report changes in deformation behavior as well as burst distribution and energies with increasing temperature. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Mechanical Properties, High-Temperature Materials, |