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Title: Observation of calcium aluminate inclusions at interfaces between Ca-treated, Al-killed steels and slags
Authors: Coletti, Bert ×
Vantilt, S.
Blanpain, Bart
Sridhar, S. #
Issue Date: Oct-2003
Publisher: Minerals, Metals & Materials Society
Series Title: Metallurgical and Materials Transactions B, Process Metallurgy and Materials Processing Science vol:34 issue:5 pages:533-538
Abstract: The evolution of Al2O3-CaO inclusions on molten steel surfaces and at molten steel/slati 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.
ISSN: 1073-5615
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Department of Materials Engineering - miscellaneous
Chemical and Extractive Metallurgy Section (-)
× corresponding author
# (joint) last author

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