About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Theory and Design of Metallic Glasses
|
| Presentation Title |
Eutectic Structure Induced Formation of Amorphous Silicon in Al-Si Alloys |
| Author(s) |
Jun Hyeok Moon, Chae Woo Ryu, Eun Soo Park |
| On-Site Speaker (Planned) |
Jun Hyeok Moon |
| Abstract Scope |
Porous amorphous silicon (a-Si) has emerged as a promising material for various applications, including high-performance lithium-ion battery anodes, due to its high capacity and improved structural stability. However, conventional fabrication methods for a-Si rely on thin-film deposition techniques that are complex and difficult to scale. In this study, we investigate the formation of a-Si within the Al–Si eutectic system through rapid solidification. When a eutectic microstructure is formed under high cooling rates, the Si-rich domains within the eutectic structure are transformed into an amorphous phase, bypassing crystallization. Structural and thermal analyses confirm the glassy nature of the embedded Si, including the observation of delayed crystallization upon heating. These results demonstrate that the eutectic environment provides favorable conditions for elemental Si glass formation. This work suggests that eutectic alloy processing as a scalable and efficient approach for producing bulk amorphous Si, expanding opportunities in energy storage and semiconductor applications. |
| Proceedings Inclusion? |
Planned: |