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Updated: Apr 21, 2026

Accurate Determination of the Equilibrium Surface Tension Values with Area Perturbation Tests
Published on: August 30, 2019
Extensive study of shape and surface structure formation in the mercury beating heart system
E Ramírez-Álvarez1, J L Ocampo-Espindola, Fernando Montoya
1Facultad de Ciencias, Universidad Autónoma del Estado de Morelos , Avenida Universidad 1001, Colonia Chamilpa 62209, Cuernavaca, Morelos, México.
Abstract:
A phenomenological study of the mercury beating heart system in a three electrode electrochemical cell configuration forced with a harmonic perturbation is presented. The system is controlled via a potentiostat, where the mercury drop is electrically connected to a platinum wire and acts as the working electrode. This configuration exhibits geometrical shapes and complex surface structures when a harmonic signal is superimposed to the working electrode potential. This study involves a wide range of frequencies and amplitudes of the forcing signal. Differents levels of structure complexity are observed as a function of the parameters of the applied perturbation. At certain amplitudes and frequencies, rotational behavior is also observed.
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