Interfacial phenomena between alumina and fayalite slag

J. R. Donald, H. Fukuyama, J. M. Toguri

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


Surface and interfacial phenomena play a significant role in refractory performance. For example, the wettability of the refractory material with slag, matte, and metal influences infiltration and interfacial reactions. Yet, very little fundamental information regarding the surface properties of refractory materials and slag is available. Thus, in the present work, the sessile drop technique incorporating a high temperature furnace equipped with X-ray fluoroscope was employed to investigate the surface and interfacial phenomena of fayalite-type slags on solid alumina at 1200°C. The iron to silica (Fe/SiO 2) ratios employed were 1.4 and 2.0, and the oxygen potentials used were log p 02=-11 and log p 02=-9 atmospheres. The contact angle between the fayalite-type slags and the alumina were determined to be relatively low, at about 16.9 to 19.6 degrees under the experimental conditions. The surface tension of fayalite slag (Fe/SiO 2=1.4) at an oxygen potential of log -11 was 0.298, which agreed with the work of previous researchers. The surface tension of the fayalite was observed to increase with time. The spinel FeAl 2O 4 was determined to be the product of the interfacial reaction, and 8.8 to 15.8 mass percent alumina was dissolved into the slag after 40 minutes.

Original languageEnglish
Title of host publicationEPD Congress 1996
EditorsRay Y. Lin, Y.Austin Chang, Ramana G. Reddy, C.T. Liu
Number of pages13
Publication statusPublished - 1996
EventProceedings of the 1996 125th TMS Annual Meeting - Anaheim, CA, USA
Duration: 1996 Feb 41996 Feb 8

Publication series

NameTMS Annual Meeting


ConferenceProceedings of the 1996 125th TMS Annual Meeting
CityAnaheim, CA, USA


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