Details
Translated title of the contribution | Thermisches Spritzen unter Ausschluss von Sauerstoff: Abschmelz- und Zerstäubungsverhalten beim Zweidrahtlichtbogenspritzen in silandotierten Inertgasen |
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Original language | English |
Pages (from-to) | 24-30 |
Journal | Thermal Spray Bulletin |
Volume | 16 |
Issue number | 1 |
Publication status | Published - May 2023 |
Abstract
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In: Thermal Spray Bulletin, Vol. 16, No. 1, 05.2023, p. 24-30.
Research output: Contribution to journal › Article › Research › peer review
}
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
ER -