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Canadian Metallurgical Quarterly
The Canadian Journal of Metallurgy and Materials Science
Volume 32, 1993 - Issue 4
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Chemical and Extractive Metallurgy

The Determination of the Surface Tensions of Nickel-Sulphur Alloys Using the Electromagnetic Oscillating Droplet Technique

Pages 289-294 | Published online: 18 Jul 2013
 

Abstract

An oscillating droplet method combined with electromagnetic levitation technique has been applied to determine the surface tensions of liquid nickel-sulphur alloys as a function of the temperature and composition. The natural frequency of the oscillating droplet is evaluated using a Fourier analyser, and the influence of magnetic field strength on the surface tension was considered. Furthermore, the applicability of Butler's equation and subregular solution model for the surface was shown to predict the surface tension of the systems containing the surface active elements.

Résumé

Uné méthode oscillatoire de goutte combinée à une technique de lévitation électromagnetique ont été utilisées afin de déterminer les tensions de surface d'alliages liquides nickel—soufre en fonction de la température et de la composition. La fréquence naturelle d'oscillation de la goutte est évaluée par un analyseur de Fourier et on considére l'influence de la force du champ magnetique sur la tension de surface. De plus, l'applicabilité aux surfaces de l'équation de Butler ainsi que du modèle de solution sous-régulière a été démontrée afin de prédire la tension de surface de systèmes contents des a éléments actifs.

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