Influence of humidity on atmospheric pressure air plasma treatment of aluminium surfaces

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Publikace nespadá pod Ekonomicko-správní fakultu, ale pod Přírodovědeckou fakultu. Oficiální stránka publikace je na webu muni.cz.
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PRYSIAZHNYI Vadym ZAPOROJCHENKO V b KERSTEN Holger ČERNÁK Mirko

Rok publikování 2012
Druh Článek v odborném periodiku
Časopis / Zdroj Applied Surface Science
Fakulta / Pracoviště MU

Přírodovědecká fakulta

Citace
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Doi http://dx.doi.org/10.1016/j.apsusc.2012.02.040
Obor Fyzika plazmatu a výboje v plynech
Klíčová slova Aging effect; Aluminium; Humid air plasma; Surface DBD; Surface treatment
Popis Atmospheric pressure air plasma treatment of aluminium surfaces and its aging behaviour in different environments were studied. Two types of aluminium samples with different purity and surface morphology were treated using the diffuse coplanar surface barrier discharge (DCSBD). Surface free energy (SFE) and X-ray photoelectron spectroscopy (XPS) have been utilised to characterise changes induced by the plasma. A significant decrease of hydrocarbon contaminants after the plasma treatment was observed. It is concluded that besides the re-contamination by exposure to ambient air, the aging effect, i.e. decrease of the surface free energy of plasma treated surfaces, can be due by dehydration of aluminium oxide layer. Also, it was observed that the humid air plasma treatment resulted in generation of NOx surface groups.
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