Analysis of interfacial area changes during spontaneous emulsification of metal droplets in slag

Rhamdhani, MA, Brooks, GA and Coley, KS (2006) Analysis of interfacial area changes during spontaneous emulsification of metal droplets in slag. Metallurgical And Materials Transactions B-process Metallurgy And Materials Processing Science, 37 6: 1087-1091. doi:10.1007/BF02735032


Author Rhamdhani, MA
Brooks, GA
Coley, KS
Title Analysis of interfacial area changes during spontaneous emulsification of metal droplets in slag
Journal name Metallurgical And Materials Transactions B-process Metallurgy And Materials Processing Science   Check publisher's open access policy
ISSN 1073-5615
Publication date 2006
Sub-type Article (original research)
DOI 10.1007/BF02735032
Volume 37
Issue 6
Start page 1087
End page 1091
Total pages 5
Place of publication Warrendale
Publisher Minerals Metals Materials Soc
Language eng
Abstract In some metal/slag reactions involving spontaneous emulsification, there is a significant increase of interfacial area, which in turn affects the global rate. In previous work by the authors, the reaction between Fe-Al alloy droplets and CaO-SiO2-Al2O3 slag was investigated. Re-evaluation of the data has shown that at an initial reaction rate above 9 x 10(-7) mol min(-1) mm(-2), the maximum change in interfacial area increases linearly with the initial rate and with the change of free energy due to chemical reaction. There were found to be two sources of interfacial area increase: (a) flattening of the original droplet, which was independent of initial rate; and (b) separation of smaller droplets, which was dependent on the initial rate.
Keyword Materials Science, Multidisciplinary
Metallurgy & Metallurgical Engineering
Tension
Iron
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Mechanical & Mining Engineering Publications
 
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Created: Fri, 25 Jan 2008, 17:00:51 EST