Reduced friction on γ-Mo2N coatings deposited by high power impulse magnetron sputtering on microstructured surfaces

Sube, T.; Kommer, M.; Fenker, M.; Hader, B.; Albrecht, J.

doi:10.1016/j.triboint.2016.10.028

Cited by 14 publications

(16 citation statements)

References 26 publications

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“…Sube et al showed that it is possible to significantly reduce friction by combining surface structuring and a hard material layer. Here, a reduction of the coefficient of friction by 25 % could be achieved (see blue dashed lines in Figure 7) [10].…”

Section: Discussionmentioning

confidence: 91%

“…A similar experiment was carried out by Sube et al using a stamp to structuring the sample surface. A MoN layer was then deposited and the surface tribologically characterized [10]. The average coefficient of friction against a 100Cr6 counter body was also approx.…”

Section: Figure 5: Angular Dependence Of the Wear Volumes Of The Mon Layer And The Counter Body (Blue) Average Coefficients Of Friction (mentioning

confidence: 99%

“…Various micro/nanoscale geometries can be produced by a single crystal diamond tool through elliptical vibration cutting [9]. Sube et al have created microimprints on the surface by mechanical embossing using a diamond stamp, significantly reducing the occurring friction against steel [10]. It has been shown that a modification of the surface topography on a length scale of several ten micrometers prepared by laser structuring or mechanical imprinting can efficiently reduce friction and wear [11][12][13][14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

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Controlling friction and wear with anisotropic microstructures in MoN coated surfaces

Schulz

Köhn

Kolb

et al. 2021

Preprint

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Steel surfaces have been patterned by laser surface texturing (LST) to create anisotropic microstructures with typical dimensions of a few 10 micrometers. The subsequent deposition of thin molybdenum nitride coatings by high power impulse magnetron sputtering (HiPIMS) leads to surfaces that conserve the surface microstructures and exhibit an extraordinarily large resistance against mechanical wear. Tribological experiments with steel counter bodies show a substantial influence of the relative orientation of structures and wear track on friction and wear. It is pointed out that the main effect is the removal of abrasion particles from the mechanical contact. Analogue experiments with alumina counter bodies that hardly provide wear particles show that the orientation effect is absent.

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Section: Discussionmentioning

confidence: 91%

Section: Figure 5: Angular Dependence Of the Wear Volumes Of The Mon Layer And The Counter Body (Blue) Average Coefficients Of Friction (mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Controlling friction and wear with anisotropic microstructures in MoN coated surfaces

Schulz

Köhn

Kolb

et al. 2021

Preprint

Self Cite

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“…The latter surface has been prepared using a stamp with prominent microdiamonds partially embedded in a nickel matrix on top of a tungsten carbide base material that is pressed onto the steel surface. The diameter of the diamonds is 25 μm leading to an according size of individual imprints [35,36].…”

Section: Resultsmentioning

confidence: 99%

Enhanced performance of microbial electrolysis cells using microstructured electrodes

Keil

Windisch

Joukov

et al. 2021

Materialwissenschaft Werkst

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A microbial electrolysis cell is set up with the purpose to realize an efficient powerto-gas process. Both hydrogen production by electrolysis and biomethanization proceed in the same reactor cell. In particular, the formation of hydrogen bubbles is strongly governed by the surface properties of the used stainless steel electrodes. Here, we introduce surface topography modifications on the micron-scale to enhance the electrical transport in the cell and support charge conversion into hydrogen. Furthermore, it is analyzed if hydrogen bubble detachment can be supported to form smaller bubbles that can be efficiently converted into methane. A positive influence on the electrical transport is found and explained by a surfacecontrolled suppression of bio-film passivation.

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“…In the last few decades, molybdenum nitride (MoN) has been studied intensively because of its specific mechanical, chemical and electronic properties, such as its excellent hardness, good chemical stability and superconductivity [1][2][3] . These characteristics make MoN thin films very suitable for diffusion barriers in microelectronics, 4 for wear and corrosion-resistant coatings in engineering, 5 and as a back contact material for thin-film solar cells. 6 Moreover, recent studies have presented MoN thin films as nano-sheets for hydrogen evolution 7 or as an advanced anode material for Li ion batteries.…”

mentioning

confidence: 99%

Structural, Morphological and Mechanical Characterisation of Molybdenum Nitride Thin Films Deposited by a Plasma Focus Device

Hosseinnejad

Ettehadi-Abari

Panahi

2017

Journal of Chemical Research

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This research focuses on the characterisation of nanostructured molybdenum nitride (MoN) thin films deposited on glass substrates at room temperature using a low-energy (1.1 kJ) plasma focus device. The nanostructure, surface morphology, electrical resistivity and mechanical properties of MoN thin films were studied in terms of the number of shots required to prepare them. X-ray diffraction (XRD) analysis indicated that all of the deposited layers were polycrystalline in nature, possessing the γ-Mo2N (fcc) structure. The XRD results also revealed that the degree of crystallinity and residual stress of the thin films were strongly dependent on the number of shots. X-ray photoelectron spectroscopy showed the Mo 3d3/2, Mo 3d5/2, Mo 3p3/2 and N 1s peaks for all of the thin films, confirming the formation of the γ-Mo2N structure. Scanning electron microscopy images showed the growth of granular structures and then the formation of larger-sized agglomerates on the surfaces of the samples with increasing numbers of shots. Atomic force microscopy indicated that grain sizes on surface layers as well as the average and root mean square roughness increased for samples deposited with more shots. Furthermore, the variations in hardness and electrical resistivity of the deposited MoN thin films were qualitatively explained on the basis of the morphological properties of the samples.

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Reduced friction on γ-Mo2N coatings deposited by high power impulse magnetron sputtering on microstructured surfaces

Cited by 14 publications

References 26 publications

Controlling friction and wear with anisotropic microstructures in MoN coated surfaces

Controlling friction and wear with anisotropic microstructures in MoN coated surfaces

Enhanced performance of microbial electrolysis cells using microstructured electrodes

Structural, Morphological and Mechanical Characterisation of Molybdenum Nitride Thin Films Deposited by a Plasma Focus Device

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