| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Characterization of Minerals, Metals and Materials 2025: In-Situ Characterization Techniques
|
| Presentation Title |
Preparation of Glass-Ceramics From Ferronickel Slag and Iron Ore Tailings: Effects of Crystallization Temperature and Time |
| Author(s) |
Zhiwei Peng, Chaojun Xiang, Huimin Tang, Xin Zhang, Qiang Zhong, Mingjun Rao |
| On-Site Speaker (Planned) |
Chaojun Xiang |
| Abstract Scope |
Ferronickel slag (FNS) and iron ore tailings (IOT) were used together to prepare enstatite-spinel based glass-ceramics by microwave-assisted one-step crystallization, with a focus on the effect of crystallization temperature and time on the product performance. The results indicated that crystallization temperature significantly affected the properties of the glass-ceramics. However, as the crystallization temperature increased from 820 °C to 880 °C, the bending strength of the glass-ceramics initially increased and then decreased. This phenomenon was attributed to incomplete crystallization at lower temperatures and excessive enstatite and spinel crystal grain growth at higher temperatures, which impaired structural uniformity. The effect of crystallization time was relatively minor, but insufficient time resulted in incomplete grain growth and thereby affected bending strength. Conversely, too long crystallization time led to excessively large grains, which was detrimental to bending strength. |
| Proceedings Inclusion? |
Planned: |