Microstructure and thermal stability of Mo-(Ag)-N coatings with high nitrogen content

Neumann, Siegfried; Wüstefeld, Christina; Motylenko, Mykhaylo; Haus, L.; Bräunig, Stefan; Müller, Matthias; Rafaja, David

doi:10.1016/j.surfcoat.2018.08.029

Cited by 6 publications

(2 citation statements)

References 40 publications

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“…PET is one of the most common thermoplastic polymers. It has excellent properties such as chemical resistance, corrosion resistance, dimensional stability, and easy recycling, which has been widely used in the surface modification of polymers [26]. The PET film used in the experiment is a rectangular block with dimensions 10 mm 10 mm 5 mm.…”

Section: Simulation Hypothesismentioning

confidence: 99%

Improvement of the spreading effect of atmospheric pressure microplasma jet treatment through shielding-gas-controlled focusing

Lv¹,

Chen²,

Wang³

et al. 2022

Plasma Sci. Technol.

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Atmospheric pressure cold microplasma jet (APμPJ) has been widely used in material processing. However, the etched area is often larger than the jet orifice due to the expansion of the microplasma. For high processing accuracy, it is essential to precisely control the jet diameter. In this paper, a two-dimensional axisymmetric simulation model is established to analyze the effect of nitrogen (N2) shielding gas on helium (He) from gas dynamics. In addition, by etching the Polyethylene terephthalate (PET) film, the relationship between the etching effect and aerodynamic analysis was verified. The simulation results are similar to the experimental results, indicating that N2 shielding gas has a focusing effect, which is related to the N2 flow rate, the distance difference between the inner and outer tubes, and outer tube nozzle diameter. It is hoped that the results of this paper can provide a certain reference for the use of shielding gas to control the jet flow of APμPJ.

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Section: Simulation Hypothesismentioning

confidence: 99%

Improvement of the spreading effect of atmospheric pressure microplasma jet treatment through shielding-gas-controlled focusing

Lv¹,

Chen²,

Wang³

et al. 2022

Plasma Sci. Technol.

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show abstract

“…Up to now, several papers have been published on the topic of MoN-Ag films deposited by magnetron sputtering from elemental target materials [3,[15][16][17][18] or mosaic targets [19,20]. The optimal concentration of Ag significantly improves the mechanical and tribological properties of parts subjected to tribological load [3].…”

Section: Introductionmentioning

confidence: 99%

Formation of Solid Lubricants during High Temperature Tribology of Silver-Doped Molybdenum Nitride Coatings Deposited by dcMS and HIPIMS

et al. 2021

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The coating system MoN-Ag is an interesting candidate for industrial applications as a low friction coating at elevated temperatures, due to the formation of lubricous molybdenum oxides and silver molybdates. Film deposition was performed by high-power impulse magnetron sputtering and direct current magnetron sputtering. To facilitate a future transfer to industry Mo-Ag composite targets have been sputtered in Ar/N2 atmosphere. The chemical composition of the deposited MoN-Ag films has been investigated by wavelength dispersive X-ray spectroscopy. Morphology and crystallographic phases of the films were studied by scanning electron microscopy and X-ray diffraction. To obtain film hardness in relation to Ag content and bias voltage, the instrumented indentation test was applied. Pin-on-disc tribological tests have been performed at room temperature and at high temperature (HT, 450 °C). Samples from HT tests have been analyzed by Raman measurements to identify possible molybdenum oxide and/or silver molybdate phases. At low Ag contents (≤7 at.%), coatings with a hardness of 18–31 GPa could be deposited. Friction coefficients at HT decreased with increasing Ag content. After these tests, Raman measurements revealed the MoO3 phase on all samples and the Ag2Mo4O13 phase for the highest Ag contents (~23–26 at.%).

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Microstructural behavior of the Ti–Al–Mo–N system controlled by Mo content: impact on the performance as hard coatings

Jirón-Lazos,

Rodil,

Mazón-Montijo

et al. 2023

J Mater Sci

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Microstructure and thermal stability of Mo-(Ag)-N coatings with high nitrogen content

Cited by 6 publications

References 40 publications

Improvement of the spreading effect of atmospheric pressure microplasma jet treatment through shielding-gas-controlled focusing

Improvement of the spreading effect of atmospheric pressure microplasma jet treatment through shielding-gas-controlled focusing

Formation of Solid Lubricants during High Temperature Tribology of Silver-Doped Molybdenum Nitride Coatings Deposited by dcMS and HIPIMS

Microstructural behavior of the Ti–Al–Mo–N system controlled by Mo content: impact on the performance as hard coatings

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