| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Biological Materials Science
|
| Presentation Title |
B-16: Fracture Mechanisms of Epoxy-alumina Composites |
| Author(s) |
Jiacheng Gao, Ruyi Man, Yuyang Wang, Yichun Tang, Kangning Su, Michael Hillman, Jing Du |
| On-Site Speaker (Planned) |
Yichun Tang |
| Abstract Scope |
Polymer-ceramic composite materials are commonly used in biomedical applications, such as drug delivery, tissue engineering, and bone repair. In our prior work, epoxy-alumina composites were used in the bio-inspired design of functionally graded dental materials. This work presents the results of an experimental study of the fracture behaviors of epoxy-alumina composites. Epoxy-alumina composite specimens are made by mixing epoxy resin with alumina particle fillers of various volume fractions. Fracture toughness values are then measured using three-point bending test on single-edge notched bend (SENB) specimens. The three-point bending tests are also paused to allow micro- X-ray computed tomography (micro-CT) scans of the specimen. The propagation of fracture paths is revealed in the micro-CT image stacks. The effects of ceramic filler volume fractions on the fracture mechanisms are studied, and the implications of the results on the design of robust composite materials are discussed for future design of robust biomaterials. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |