Atmospheric plasma torch treatment of aluminium: Improving wettability with silanes

Díaz-Benito, B.; Velasco, F.

doi:10.1016/j.apsusc.2013.09.138

Cited by 13 publications

(6 citation statements)

References 43 publications

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“…This effect can be exploited for the plasma process, too. Moreover, studies suggest that plasma processes could even increase the surface energy and thus the wettability [ 14 , 16 ].…”

Section: Discussionmentioning

confidence: 99%

“…Plasma processes are widely used for modifying the surface properties (decontamination, hydrophilic properties, adhesion) of aluminum [ 4 , 14 , 15 ]. Plasma treatment can increase the surface energy and wettability of aluminum surfaces [ 16 ]. However, under atmospheric non-vacuum conditions, plasma treatment can also promote oxidation, leading to the formation of a thicker amorphous oxide layer (up to 15 nm with air used as a plasma gas) [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Investigations into Flux-Free Plasma Brazing of Aluminum in a Local XHV-Atmosphere

Klett¹,

Bongartz²,

Viebranz³

et al. 2022

Materials

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As a lightweight construction material, aluminum plays a key role in weight reduction and, thus, sustainability in the transport industry. The brazing of aluminum and its alloys is impeded by the natural passivating oxide layer, which interferes with the brazing process. The presented study investigates the possibility of using a thermal silane-doped argon plasma to reduce this oxide layer in situ and thus eliminating the need to use hazardous chemical fluxes to enable high-quality brazing. Using plasma spectroscopy and an oxygen partial pressure probe, it was shown that a silane-doped argon plasma could significantly reduce the oxygen concentration around the plasma in a thermal plasma brazing process. Oxygen concentrations below 10−16 vol.-% were achieved. Additionally, metallographic analyses showed that the thickness of an artificially produced Al2O3-Layer on top of AlMg1 samples could be substantially reduced by more than 50%. With the oxide layer removed and inhibition of re-oxidation, silane-doped plasma brazing has the potential to become an economically efficient new joining method.

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“…This effect can be exploited for the plasma process, too. Moreover, studies suggest that plasma processes could even increase the surface energy and thus the wettability [ 14 , 16 ].…”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Investigations into Flux-Free Plasma Brazing of Aluminum in a Local XHV-Atmosphere

Klett¹,

Bongartz²,

Viebranz³

et al. 2022

Materials

View full text Add to dashboard Cite

show abstract

“…Interaction of all these species with the surface can lead to the improvement in adhesion through plasma proccessing. Research results showed plasma treatment can increase the surface free energy, leading to a higher adhesion [2][3][4][5][6]. In this study, the effect of plasma surface treatment technology on adhesion strength was examined in detail.…”

Section: Introductionmentioning

confidence: 97%

“…Plasma surface treatment is an alternative method. This high energy physical method is clean and environmental-friendly type of process that can be easily applied in in-line production, the capital cost is relatively low when compared to other methods [3][4][5]. Plasma is an ionized gas consists of electrons, ions and neutral particles such as atoms, molecules, radicals and excited and reactive species.…”

Section: Introductionmentioning

confidence: 99%

Adhesion Imrovement with Plasma Activation Between Aluminum Alloys

Altuncu¹,

Tecir²,

Birbaşar³

2020

acperpro

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Aluminum alloys are advantageous light metals in many respects. In the use of these alloys in the ship, aviation and automotive industries, bonding applications rather than welded joints or mechanical connections are preferred. Improving adhesion properties with various surface treatments applied to aluminum alloys is an important issue. Adhesive type, front surface treatments and surface activation techniques control adhesion strength. In this study, the effect of plasma surface treatment technology on adhesion strength was examined in detail. The water drop wetting ability of the alloys were examined, and then adhesion properties were compared with adhesion tests. It has been determined that plasma technology significantly increases the adhesion strength.

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“…Until now, the use of the atmospheric pressure plasma jet on metals was investigated mainly regarding the effects of the plasma on the decontamination, adhesion, hydrophilic properties and the applications of coatings. [12][13][14][15][16][17] However, little is known about the thickness, the composition and the corrosion properties of the oxides formed on surface of metals after atmospheric pressure plasma jet treatment. This information is essential in all the cases where a preliminary plasma treatment is performed to clean and to activate the surface before depositing a coating.…”

Section: Introductionmentioning

confidence: 99%

Effects of atmospheric pressure plasma JET treatment on aluminium alloys

Brunelli

Pezzato

Napolitani³

et al. 2014

Surface Engineering

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In this paper, the effect of surface treatments carried out with an atmospheric pressure plasma jet, generated by air, on the passive film of AA1071 and AA2024 was investigated. The samples of the aluminium alloys, before and after the surface plasma treatments, were analysed by secondary ions mass spectrometry depth profiling and by X-ray photoelectron spectroscopy. Potentiodynamic anodic polarisation tests and electrochemical impedance spectroscopy measurements were carried out to study the influence of the surface plasma treatments on the corrosion resistance properties of the Al alloys. The plasma treatments induced the oxidation of the surface and the formation of a thicker and denser passive layer, which exhibited higher corrosion resistance than the native film

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Atmospheric plasma torch treatment of aluminium: Improving wettability with silanes

Cited by 13 publications

References 43 publications

Investigations into Flux-Free Plasma Brazing of Aluminum in a Local XHV-Atmosphere

Investigations into Flux-Free Plasma Brazing of Aluminum in a Local XHV-Atmosphere

Adhesion Imrovement with Plasma Activation Between Aluminum Alloys

Effects of atmospheric pressure plasma JET treatment on aluminium alloys

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