The influence of several parameters: vibrational temperature, thermal disequilibrium, pressure, copper vapours on the composition and heat capacity of a plasma formed in SF 6 are studied. The effects of these parameters on chemical reactions and plasma compound are discussed. For example, we show that the concentration of negative charged particle decreases as the thermal disequilibrium increases. L'influence des paramètres suivants : température de vibration, déséquilibre thermique, pression et vapeurs de cuivre sur la composition et la capacité calorifique d'un plasma de SF 6 hors d'équilibre thermique est étudiée. Les effets de ces paramètres sur les réactions chimiques et le comportement du plasma sont discutés. Par exemple, nous montrons que la concentration des espèces chimiques chargées négativement diminue à mesure que le déséquilibre thermique augmente

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Zinc electrodeposition from a deep eutectic mixture of ZnCl2 and choline chloride/ethylene glycol on titanium covered by an anodic titania film of different thicknesses was studied. It was shown that thin titanium dioxide layers work as high resistive media and the rate of zinc deposition decreases with film thickness. Thicker titania layers (23 nm and higher) have opposite properties and the zinc reduction rate starts gradually increasing with thickness. This happens because at the higher voltage necessary to grow thicker anodic films they become more crystalline and consequently more conductive. There is also evidence that in deep eutectic solvent no dense organic layer forms on the titanium/titania electrodes. The application of an AC signal superimposed on a DC potential only marginally increases the amount of zinc deposited and FTIR measurements did not reveal the formation of any chemical bonds between the film and deep eutectic solvent. Zn deposition onto titanium/titania at −1.6 V is characterized by instantaneous three-dimensional nucleation mechanism, which is independent of the titania thickness.

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