Observation of calcium aluminate inclusions at interfaces between Ca-treated, Al-killed steels and slags
Source abstract
Abstract
The evolution of Al2O3-CaO inclusions on molten steel surfaces and at molten steel/slag interfaces was observed in-situ through a confocal scanning laser microscope (CSLM) equipped with a gold-image furnace. Depending on the slag chemistry, some of the initially liquid inclusions evolved into irregular Al2O3 or SiO2-enriched inclusions during the separation across the interface. Inclusions were found to cluster at specific locations at the steel/slag interface. Unlike capillary-depression-driven clustering, which is observed on molten steel surfaces, a weak repulsive force opposes fluid-flow-driven clustering at the steel/slag interface. After clustering, the irregular solid inclusions were observed to agglomerate to form large aggregates.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Metallurgical Processes and Thermodynamics · Minerals Flotation and Separation Techniques · Metal Extraction and Bioleaching
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (15)
Show source-provided references
1. P. Trojan: Metals Handbook, 9th ed., vol. 15, ASM INTERNATIONAL, Metals Park, OH, 1988, vol. 15, pp. 88–97.
2. M. Andersson: Ph.D. Thesis, Royal Institute of Technology, Stockholm, 2000, pp. 46–56.
3. T.A. Engh: Principles of Metals Refining, Oxford University Press, New York, NY, 1992, pp. 19–31.10.1093/oso/9780198563372.001.0001 ↗
4. T. Gladman: Ironmaking and Steelmaking, 1992, vol. 19, pp. 457–63.
5. S. Mizoguchi, K. Nakajima, Y. Nabeshima, H. Hasegawa, and S. Kimura: Proc. 2nd Int. Congr. on the Science and Technology of Steelmaking, Swansea, United Kingdom, 2001, pp. 219–28.
6. N.V. Pyatnitsa, Y.P. Shtan’ko, N.F. Yakovlev, and V.P. Pirozhkova: Elektroslag Technol., 1988, vol. 4, pp. 179–81.
7. D.Z. Lu, G.A. Irons, and W.K. Lu: Ironmaking and Steelmaking, 1994, vol. 21, pp. 362–71.
8. S.H. Lee, C. Tse, K.W. Yi, P. Misra, V. Chevrier, C. Orrling, S. Sridhar, and A.W. Cramb: J Non-Cryst Solids, 2001, vol. 282, pp. 41–48.10.1016/S0022-3093(01)00327-1 ↗
9. H. Yin, H. Shibata, T. Emi, and M. Suzuki: Iron Steel Inst. Jpn. Int., 1997, vol. 37, pp. 936–45.10.2355/isijinternational.37.936 ↗
10. H. Yin, H. Shibata, T. Emi, and M. Suzuki: Iron Steel Inst. Jpn. Int., 1997, vol. 37, pp. 946–55.10.2355/isijinternational.37.946 ↗
11. Y. Wang, M. Valdez, and S. Sridhar: Metall. Mater. Trans. B, 2002, vol. 33B, pp. 625–31.10.1007/s11663-002-0042-1 ↗
12. http://rsb.info.nih.gov/nih-image
13. P.A. Kralchevsky, N.D. Denkov, and K.D. Danov: Langmuir, 2001, vol. 17, pp. 7694–7705.10.1021/la0109359 ↗
14. K. Nakajima and K. Okamura: Proc. 4th Int. Conf. on Molten Slags and Fluxes, Sendai, Japan, 1992, pp. 505–10.
15. S. Sridhar and A.W. Cramb: Proc. Mills Symp. Metals, Slags, Glasses: High Temperature Properties & Phenomena, London, 2002, pp. 93–100.