Greifswald 2024 – wissenschaftliches Programm
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P: Fachverband Plasmaphysik
P 6: Poster I
P 6.18: Poster
Montag, 26. Februar 2024, 16:30–18:30, ELP 6: Foyer
Development and application of low energy plasma treatments for steel surfaces — •Gustav Gürtler1,2, Wolfgang Burgstaller1, Markus Valtiner2, and Friedrich Aumayr2 — 1voestalpine Stahl Gmbh, voestalpine Straße 3, 4020 Linz, Austria — 2Institute of Applied Physics, TU Wien, Wiedner Hauptstraße 8-10/E134, 1040 Wien, Austria
Plasma cleaning can be an efficient way of preparing metallic surfaces for subsequent coating procedures by removing oxides and other contaminants and consequently enhancing the adhesion of deposited coating layers [1]. This study investigates the efficiency of low-pressure plasma treatments of steel batch samples. Plasma monitoring via optical emission spectroscopy (OES) is performed on a pulsed-DC argon plasma discharge. A successful removal of sample material is confirmed by Fe atomic emission, while an estimation of electron density Ne and electron temperature Te is attempted by exploiting intensity ratios of neutral argon Ar (I) emission lines via a modified Boltzmann plot and a Te-dependent neutral Ar (I) emission line ratio [2]. A possible correlation of Te and Ne values and the amount of detached material is investigated.
[1] H. C. Barshilia et al, 2012, Vacuum, 86 1165-1173
[2] J. B. Boffard et al, 2012, J. Phys. D: Appl. Phys. 45 045201
Keywords: low-pressure plasma; argon plasma; steel surface; optical emission spectroscopy