| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Magnesium Technology 2025
|
| Presentation Title |
SiC nanowhisker reinforced lightweight metal composites: a detailed study of the interface |
| Author(s) |
Zhuocheng Xu, Anne Bonnin, Benjamin Watts, Xinyi Hao, Yuting Dai, Christopher Gourlay, Christian Kübel, Milo Shaffer, Qianqian Li |
| On-Site Speaker (Planned) |
Qianqian Li |
| Abstract Scope |
Nano-β-SiC is a promising reinforcement for Mg-Al alloy matrices. However, past research paid less attention to the interfacial behaviours between β-SiC and Mg-Al matrix, with most reports stating the interfaces were 'clear' and exhibited an 'absence of interfacial reactions'. In this study, β-SiC nanowhiskers were introduced into AZ91 matrix. The interfacial behaviours in this nanocomposite were thoroughly investigated using multiscale characterisation techniques including X-ray phase contrast tomography (X-PCT), scanning transmission X-ray microscope (STXM) and advanced electron microscopy. The analysis identified a less commonly reported ternary carbide, T2-Al2MgC2, adjacent to the nano-SiC, providing strong evidence of interfacial reactions during manufacturing. The effects of this ternary carbide on the composite microstructure, e.g. phase distributions and interfacial texture were also investigated. This comprehensive understanding of the interface of the β-SiC reinforced Mg and its correlation to nanocomposite properties is crucial for optimising manufacture and provides key inputs for modelling studies on interfacial mechanics. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Composites, Magnesium, Characterization |