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Thermal spraying in oxygen-free environment: Meltoff and atomisation behaviour of twin-wire arc spraying processes in silane-doped inert gases

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External Research Organisations

  • Clausthal University of Technology (TUC)
  • Clausthaler Zentrum für Materialtechnik

Details

Translated title of the contributionThermisches Spritzen unter Ausschluss von Sauerstoff: Abschmelz- und Zerstäubungsverhalten beim Zweidrahtlichtbogenspritzen in silandotierten Inertgasen
Original languageEnglish
Pages (from-to)24-30
JournalThermal Spray Bulletin
Volume16
Issue number1
Publication statusPublished - May 2023

Abstract

In addition to the actual functional properties, the bond strengths between the coating and the substrate constitute one of the decisive quality criteria of a thermally sprayed coating. Since conventional thermal spraying is carried out almost exclusively in an air atmosphere, this leads to the oxidation of the surfaces and the interfaces at the coating point so that no material-locking interfaces can be achieved. One possibility of completely suppressing the oxidation during the coating operation is offered by shifting the coating operation into a monosilane / inert gas mixture. The present paper deals with the influences of different inert gas mixtures with different residual oxygen proportions on the arc and the particle atomisation in the case of twin-wire arc spraying. It is shown that the shifting of the coating process into a silane-doped inert gas atmosphere leads to freedom from oxides and a rise in the productivity of the process.

Cite this

Thermal spraying in oxygen-free environment: Meltoff and atomisation behaviour of twin-wire arc spraying processes in silane-doped inert gases. / Rodriguez Diaz, Manuel; Hassel, Thomas; Hölscher, Lennart Vincent et al.
In: Thermal Spray Bulletin, Vol. 16, No. 1, 05.2023, p. 24-30.

Research output: Contribution to journalArticleResearchpeer review

Rodriguez Diaz M, Hassel T, Hölscher LV, Szafarska M, Gustus R, Möhwald K et al. Thermal spraying in oxygen-free environment: Meltoff and atomisation behaviour of twin-wire arc spraying processes in silane-doped inert gases. Thermal Spray Bulletin. 2023 May;16(1):24-30. doi: 10.53192/TSB20230124
Rodriguez Diaz, Manuel ; Hassel, Thomas ; Hölscher, Lennart Vincent et al. / Thermal spraying in oxygen-free environment : Meltoff and atomisation behaviour of twin-wire arc spraying processes in silane-doped inert gases. In: Thermal Spray Bulletin. 2023 ; Vol. 16, No. 1. pp. 24-30.
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abstract = "In addition to the actual functional properties, the bond strengths between the coating and the substrate constitute one of the decisive quality criteria of a thermally sprayed coating. Since conventional thermal spraying is carried out almost exclusively in an air atmosphere, this leads to the oxidation of the surfaces and the interfaces at the coating point so that no material-locking interfaces can be achieved. One possibility of completely suppressing the oxidation during the coating operation is offered by shifting the coating operation into a monosilane / inert gas mixture. The present paper deals with the influences of different inert gas mixtures with different residual oxygen proportions on the arc and the particle atomisation in the case of twin-wire arc spraying. It is shown that the shifting of the coating process into a silane-doped inert gas atmosphere leads to freedom from oxides and a rise in the productivity of the process.",
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Download

TY - JOUR

T1 - Thermal spraying in oxygen-free environment

T2 - Meltoff and atomisation behaviour of twin-wire arc spraying processes in silane-doped inert gases

AU - Rodriguez Diaz, Manuel

AU - Hassel, Thomas

AU - Hölscher, Lennart Vincent

AU - Szafarska, Maik

AU - Gustus, René

AU - Möhwald, Kai

AU - Maier, Hans Jürgen

PY - 2023/5

Y1 - 2023/5

N2 - In addition to the actual functional properties, the bond strengths between the coating and the substrate constitute one of the decisive quality criteria of a thermally sprayed coating. Since conventional thermal spraying is carried out almost exclusively in an air atmosphere, this leads to the oxidation of the surfaces and the interfaces at the coating point so that no material-locking interfaces can be achieved. One possibility of completely suppressing the oxidation during the coating operation is offered by shifting the coating operation into a monosilane / inert gas mixture. The present paper deals with the influences of different inert gas mixtures with different residual oxygen proportions on the arc and the particle atomisation in the case of twin-wire arc spraying. It is shown that the shifting of the coating process into a silane-doped inert gas atmosphere leads to freedom from oxides and a rise in the productivity of the process.

AB - In addition to the actual functional properties, the bond strengths between the coating and the substrate constitute one of the decisive quality criteria of a thermally sprayed coating. Since conventional thermal spraying is carried out almost exclusively in an air atmosphere, this leads to the oxidation of the surfaces and the interfaces at the coating point so that no material-locking interfaces can be achieved. One possibility of completely suppressing the oxidation during the coating operation is offered by shifting the coating operation into a monosilane / inert gas mixture. The present paper deals with the influences of different inert gas mixtures with different residual oxygen proportions on the arc and the particle atomisation in the case of twin-wire arc spraying. It is shown that the shifting of the coating process into a silane-doped inert gas atmosphere leads to freedom from oxides and a rise in the productivity of the process.

U2 - 10.53192/TSB20230124

DO - 10.53192/TSB20230124

M3 - Article

VL - 16

SP - 24

EP - 30

JO - Thermal Spray Bulletin

JF - Thermal Spray Bulletin

SN - 1866-6248

IS - 1

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