About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Mechanical Behavior at the Nanoscale VIII
|
| Presentation Title |
Evaluating the Full Elasticity Tensor of Boron Carbide via Nanoindentation |
| Author(s) |
Matin Jafari, Arezoo Zare |
| On-Site Speaker (Planned) |
Matin Jafari |
| Abstract Scope |
This study aims to overcome the challenges of evaluating the full elasticity tensor of boron carbide, a low-symmetry trigonal ceramic with high ultrasonic wave velocity and typically small single crystal sizes. Nanoindentation is employed to determine the out-of-plane Young’s moduli of single crystals oriented along specific crystallographic planes. An analytical solution is developed to relate these measurements to the full elasticity tensor, and its accuracy is validated using elastic constants obtained from resonant ultrasound spectroscopy. To account for in-plane anisotropy on each studied plane, the relative orientation between the crystal surface and the Berkovich indenter tip is carefully controlled. The framework established here provides a robust approach for extracting full elastic tensors and can be extended to other low-symmetry material systems. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Mechanical Properties, Ceramics, High-Temperature Materials |