Direct Determination of the Surface Tension of Metal Alloys near the Melting Point by Means of the Generation of Spherical Microparticles in Uniform Electric Fields

CIRILO-LOMBARDO, DIEGO JULIO; CESAR GRECO, ALEJANDRO; VERSACI, RAUL

ECS Journal of Solid State Science and Technology

IOP

Año: 2021 vol. 10

2162-8769

The possibility of modeling microparticles of various alloys of interest through an electric field of medium and high intensity isconsidered in order to obtain in a straight way the surface tension near the melting point. To this end, a new method for thefabrication of microparticles by spark machining is used as an experimental framework for this study. We explicitly show, using asimple model based on a flat parallel capacitor, that both the expressions of the electric field and the series expansion of the surfacetension near the melting point contain the same critical parameter. Considerations regarding other empirical works as well as someexamples of our method using data of previous experimental work involving fabrication of microspheres of Fe and UMo areexplicitly given