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19 apr 2023 · Especially, different from graphene, the friction of GDY exhibits a double increase and decrease in one period of λ ≈ 8–9 Å, and it is roughly equal to the distance between two adjacent alkyne bonds in the x direction, indicating GDY’s structure and lattice play an important role in reducing friction. KEYWORDS: graphdiyne film. ultralow ...
2 gen 2019 · The effects of nanoscale ripple texture on the film thickness and friction in elastohydrodynamically lubricated (EHL) contacts were investigated through ball-on-disc experiments and numerical simulations of line contacts. The texturing was produced by femtosecond LASER irradiations and the ripple texture was in the form of sinusoidal waviness with nanoscale amplitudes and wavelengths. The ...
5 nov 2020 · La pellicola a basso coefficiente d’attrito GORE® Low Friction Film offre nuove opportunità per progettare gruppi di tenuta più piccoli, più leggeri e meno complessi. Con la pellicola a basso coefficiente d’attrito GORE® Low Friction Film, questa nuova categoria di guarnizioni dinamiche può contribuire ad aprire la strada a componenti economicamente più competitivi e a una maggiore ...
Dynamic friction: Persisting friction force during a sliding motion at a given speed. Below is a list of friction testing standards: ASTM D1894 – Standard Test Method for Static and Kinetic Coefficients of Friction of Plastic Film and Sheeting; ASTM D5458 – Standard Test Method for Peel Cling of Stretch Wrap Film
10 dic 2023 · In this study, the friction behavior, wear mechanism, and transfer behavior of the friction film between different friction pair balls and PDC in a drilling fluid medium environment are reported. The main conclusions are as follows: (1) The friction behavior of PDC is affected by the drilling fluid medium. (2)
1 apr 2013 · Friction film developed on friction surface of the discs tested at 200 N, 320 N, 410 N and 450 N at 750 rpm and 200 N and 320 N at 1200 rpm observed by SEM showing the thickness measurement and a continuous friction film. Download : Download high-res image (847KB) Download : Download full-size image; Fig. 9.
2 mar 2023 · 4.4 Trade-off between friction and film thickness. EHL friction and film thickness are strongly influenced by the water content of PAGWs. As a summary of the results, Figure 10 shows the mean coefficient of friction µ ¯ (1 m/s) as a function of the calculated minimum film thickness h m at a mean speed v m = 1.0 m/s and contact pressure p H ...
