Surface modification of ZnMgAl-coated steel by dielectric-barrier discharge plasma

Knust, Steffen; Kuhlmann, Andreas V.; Arcos, Teresa de los; Grundmeier, Guido

doi:10.1039/c9ra07378g

Cited by 13 publications

(14 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The preliminary DBR treatment was applied to one half of the plates to obtain initial samples with a modified surface, which can be further used for comparative analysis after processing in the gyrotron discharge. Currently, DBR is a known method of surface cleaning (see, e.g., [ 51 , 52 ]). After DBR treatment, the surface of the plates becomes smoother, the number of irregularities and microcracks decreases, traces of metal rolling become visible, and small scratches appear on the surface.…”

Section: Methodsmentioning

confidence: 99%

Microwave Simulation Experiments on Regolith (Lunar Dust) Deposition on Stainless Steel

et al. 2021

View full text Add to dashboard Cite

In this article, results are presented of experiments on depositing charged particles, which imitate the levitating dust on the Moon, on stainless steel. Ensembles of particles are created above the surface of laboratory regolith whose composition and particle size distribution imitate the dust that covers the Moon’s surface. Under the action of the gyrotron radiation on regolith, non-linear physical-chemical processes develop (breakdown, chain plasmachemical reactions, and particle scattering by the Coulomb mechanism), which lead to the appearance of a levitating cloud of particles. The simulation experiment is based on the similarity between the processes that develop in the laboratory experiments with regolith and the processes that occur on the Moon during its bombardment by micrometeorites. The effect of the levitating cloud on stainless steel plates is studied and it is shown that regolith particles in the shape of spheroids of different sizes are deposited on the surface of the plates. The dimensions of the deposited particles and the density of their placement depend on the quality of treatment of the plate surface. It is shown that the laboratory-produced dusty plasma can be used in simulation experiments to study the modification of surfaces of different materials for space technology.

show abstract

Section: Methodsmentioning

confidence: 99%

Microwave Simulation Experiments on Regolith (Lunar Dust) Deposition on Stainless Steel

et al. 2021

View full text Add to dashboard Cite

show abstract

“…The DBD plasma treatment was carried out in a home-made chamber. 11 The plasma was ignited between a copper plate serving as high voltage electrode and the sample acting as ground electrode with an Al 2 O 3 ceramic with a thickness of 2 cm in between. All measurements were performed at atmospheric pressure using an overall gas flow of…”

Section: Surface Functionalizationmentioning

confidence: 99%

“…[4][5][6][7][8] Treatment of zinc and aluminium alloys using plasmas has already proven to enhance the corresponding surface adhesive properties. [9][10][11][12][13] Such improved adhesive properties were assigned to cleaning of the sample surface and modifications in the outermost surface region of the oxide layers.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, the use of plasmas as surface treatment has gained much attention as a dry and therefore cost‐efficient and environment‐friendly process 4–8 . Treatment of zinc and aluminium alloys using plasmas has already proven to enhance the corresponding surface adhesive properties 9–13 . Such improved adhesive properties were assigned to cleaning of the sample surface and modifications in the outermost surface region of the oxide layers.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Influence of dielectric barrier plasma treatment of ZnMgAl alloy‐coated steel on the adsorption of organophosphonic acid monolayers

Knust

Kuhlmann

Orive

et al. 2020

Surface & Interface Analysis

Self Cite

View full text Add to dashboard Cite

The adsorption of octadecyl phosphonic acid (ODPA) on oxide-covered surfaces of ZnMgAl alloy coatings is described as a function of a dielectric barrier discharge (DBD) pretreatment step. The ODPA monolayer formation enables the investigation of the influence of the DBD treatment on the resulting interfacial bond formation and surface coverage. Surface characterisation by means of surface spectroscopy (PM-IRRAS, XPS) and surface electrochemistry (cyclic voltammetry) showed that the DBD pretreatment with Ar, Ar/O 2 and Ar/H 2 O gas mixtures leads to improved barrier properties of the adsorbed ODPA monolayer. Moreover, during ODPA monolayer formation from ethanolic solution, a partial etching of the surface oxide layer occurs.

show abstract

“…These changes had a high impact on the adsorption of adhesives and selfassembled monolayers, where the addition of oxygen and especially water increased the adhesion properties of the surface. [31,32] In this work, we present a novel setup that allows us to perform in situ Raman spectroscopy on the backside of a gas permeable electrode. The setup geometry limits the plasma/surface interaction to the plasma effluent, thus allowing to determine the impact of long-living plasma-produced species on the surface.…”

Section: Introductionmentioning

confidence: 99%

In situ backside Raman spectroscopy of zinc oxide nanorods in an atmospheric‐pressure dielectric barrier discharge plasma

Knust

Ruhm

Kuhlmann

et al. 2021

J Raman Spectroscopy

Self Cite

View full text Add to dashboard Cite

This work presents in situ backside Raman spectroscopy as a method for the investigation of atmospheric-pressure plasma modification of thin oxide films on metals. By using the backside of a permeable electrode, various contributions from the plasma (UV radiation, electrons, etc.) are blocked, which allows us to solely evaluate the effect of the plasma effluent. This approach is applied to study the influence of different gas mixtures (Ar, Ar/H 2 O, and Ar/O 2 ) on the plasma treatment of zinc oxide nanorod films. The spectral analysis reveals the interaction of the plasma effluent with the zinc sublattice, introducing defects dependent on the plasma gas-phase composition. The in situ measurements show that both the effluent/surface interaction and the resulting defects induce lattice stress in the wurtzite structure. Ex situ Raman measurements demonstrate that the defect stability over time depends on the defect type. The results for the dielectric barrier discharge plasma modification of ZnOnanostructured thin films indicate that the presented Raman spectroscopic setup is suitable for a variety of systems with a focus on remote plasma modifications.

show abstract

Surface modification of ZnMgAl-coated steel by dielectric-barrier discharge plasma

Abstract: Correlation between atmospheric DBD plasma-induced surface chemical changes on a ZnMgAl alloy coating and the resulting adhesive properties.

Cited by 13 publications

References 44 publications

Microwave Simulation Experiments on Regolith (Lunar Dust) Deposition on Stainless Steel

Microwave Simulation Experiments on Regolith (Lunar Dust) Deposition on Stainless Steel

Influence of dielectric barrier plasma treatment of ZnMgAl alloy‐coated steel on the adsorption of organophosphonic acid monolayers

In situ backside Raman spectroscopy of zinc oxide nanorods in an atmospheric‐pressure dielectric barrier discharge plasma

Contact Info

Product

Resources

About