Analysis of the source of dynamic interfacial phenomena during reaction between metal droplets and slag

Rhamdhani, MA, Coley, KS and Brooks, GA (2005) Analysis of the source of dynamic interfacial phenomena during reaction between metal droplets and slag. Metallurgical And Materials Transactions B-process Metallurgy And Materials Processing Science, 36 5: 591-604.


Author Rhamdhani, MA
Coley, KS
Brooks, GA
Title Analysis of the source of dynamic interfacial phenomena during reaction between metal droplets and 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 2005
Sub-type Article (original research)
DOI 10.1007/s11663-005-0050-z
Volume 36
Issue 5
Start page 591
End page 604
Total pages 14
Place of publication Warrendale
Publisher Minerals Metals Materials Soc
Language eng
Abstract The dynamic interfacial phenomena during high-temperature reaction between an Fe-Al alloy droplet and a CaO-SiO2-Al2O3 slag were analyzed by evaluating the thermocapillary, solutocapillary, and electrocapillary effects. The magnitudes of these effects were determined using the local equilibrium model and utilizing kinetic data to determine local composition, temperature, and electrical potential. The electrocapillary effect was found to be dominant. It contributed approximately 85 pct of the maximum interfacial depression while the solutocapillarity contributed 15 pct. The thermocapillary effect was found to be negligible. In this work, the local gradient of interfacial tension along the interface due to the solutocapillary effect was estimated, i.e., Delta(gamma m-s) to 440 mN/m over a 1- to 2-mu m distance.
Keyword Materials Science, Multidisciplinary
Metallurgy & Metallurgical Engineering
Spontaneous Emulsification
Equilibrium Values
Tension
Iron
Oxygen
Kinetics
Steelmaking
Systems
Melts
M=c
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, 16:40:31 EST