Measurement of surface tension of liquid copper by means of electromagnetic levitation
K. Aziz, A. Schmon and G. Pottlacher
An electromagnetic levitation device has been recently constructed by the thermophysics and metalphysics group at TU Graz, Austria and first investigations of copper in the liquid phase have been carried out. Data for temperature dependence of surface tension will be presented in this work and compared to results from literature.
The value obtained for surface tension in this work is:
g = (1633 – 0.21 · T) mN m-1
With temperature T between 1400 K ≤ T ≤ 1750 K.
Keywords: Surface tension, liquid copper, oscillating drop, electromagnetic levitation