| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Real Time Imaging
|
| Presentation Title |
Wetting and Spreading Kinetics between Liquid CaO-SiO2 Slags and a Solid SiO2 |
| Author(s) |
Chaeyeon Yoo, Jaewoo Myung, Yongsug Chung |
| On-Site Speaker (Planned) |
Jaewoo Myung |
| Abstract Scope |
The objective of this study was to investigate wetting and spreading phenomena based on solubility difference of two compositions. Slags were prepared at 1873K (1600℃) by changing SiO2 content: 1) saturated composition; and 2) non-saturated composition. The substrate was β–quartz single crystal. Wetting and spreading experiments were carried out at 1873K (1600℃) in Ar (99.999%) atmosphere using Dispensed Drop Technique (DDT) with a high-speed camera (1000 frames/sec). Results showed that the apparent contact angle of non-saturated slag was smaller than that of saturated slag ( θF^NS=8°,θF^S=35°). The spreading rate of non-saturated slag was faster than that of saturated slag. Spreading is controlled by a viscous force. Both slags can fit the non-reactive model. However, for the non-saturated slag, the actual contact angle at the triple line was different from the apparent contact angle values. Dissolution might have contributed to such difference. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Iron and Steel, High-Temperature Materials, Other |