Search Results for Friction Coefficient

Fig. 17 Specific wear rate and friction coefficient of unidirectional composites (see Table 4 ) in three orientations ( P , 1.5 N/mm 2 ; V , 0.83 m/s; distance slid, 16 km). More

Fig. 2 Experimentally identified history of friction coefficient of aluminum 1100 foils during one weld. Source: Ref 17 More

Fig. 3 Measured aluminum 3003-H18 friction coefficient varying with temperature. Source: Ref 25 More

Fig. 5 Effect of pit area rates on friction coefficient and scuffing resistance More

Fig. 23 Effect of bearing constant (ηV/ P m ) on friction coefficient (μ) after running-in of 8 × 10 4 sliding cycles at the contact interface between self-mated Si 3 N 4 sliding surfaces in water at room temperature. η, water viscosity; V, rotary speed; P m , mean contact pressure More

Fig. 4 Variation of the friction coefficient with sliding cycles and sliding distance for SiC and Si 3 N 4 under water lubrication. Source: Ref 22 More

Fig. 8 Representation of friction coefficient for a silicon plate, self-assembled monolayers (SAM) onto silicon, and triplex polymer nanolayer. After Ref 36 , 40 More

Fig. 2 (a) Transition in friction coefficient of a WS 2 coating from dry nitrogen to humid air, accompanied by their transfer films on 440C stainless steel counterface. In dry nitrogen, the weak van der Waals forces give rise to intracrystalline shear, while in humid air, WS 2 oxidizes More

Fig. 4 Effect of normal load on the friction coefficient of a co-sputtered MoS 2 /Ni coating in dry air (<1% relative humidity) tested against three ball materials in a ball-on-flat machine. Source: Ref 30 More

Fig. 7 Friction coefficient and wear rate data for 10,000-cycle experiments in both humid air (25% relative humidity) and dry nitrogen environments on composite MoS 2 coatings under 5 N (1.1 lbf) normal load. The error bars for the friction coefficient are the associated standard deviation More

Fig. 10 Variation of friction coefficient with temperature of burnished MoS 2 and WS 2 disks slid against a pin in (a) argon and (b) air atmospheres. Unidirectional sliding test conditions: steel pins with 4.576 mm (0.180 in.) tip radius, 9.6 N (2.2 lbf) normal load, and 0.025 m/s (0.082 ft More

Fig. 13 Friction coefficient (μ) data as a function of temperature for uninterrupted thermal cycles for steel sliding on MoS 2 in dry nitrogen. Reciprocating sliding test conditions: steel pins with 1.6 mm (0.06 in.) tip radius, 1 N (0.22 lbf) normal load, and 3 mm/s (0.12 in./s) sliding More

Fig. 20 Friction coefficient (μ) as a function of wear rate plots from reciprocating ball-on-flat sliding tests in polyalphaolefin for different additive combinations (inorganic fullerene, or IF, WS 2 nanoparticle; normal 2H WS 2 particles; zinc-dithiophosphate, or Zn-DTP, antiwear additive More

Fig. 40 Variation of friction coefficient (solid line) in sliding tests of a laser-textured TiCN coating with a burnished MoS 2 -graphite-Sb 2 O 3 layer against a steel ball in conditions of a cycled environment humidity (dotted line). Insets show Raman analyses spectra taken from wear tracks More

Fig. 13 Friction coefficient of a polymer/steel sliding system as a function of the set of operational parameters { F N , v, T }, and the appearance of polymer films transferred to the steel surface in low- and high-friction regimes. PTFE, polytetrafluorethylene More

Fig. 10 Example of a Stribeck-Hersey curve for determining the friction coefficient from lubricant properties More

Fig. 13 Effect of surface roughness on the friction coefficient of a lubricated sliding system. Adapted from Ref 16 More

Fig. 17 Measured friction coefficient of oils with and without [P 6,6,6,14 ][DEHP] IL. Source: Ref 94 More

Fig. 2 Friction coefficient as a function of inverse Hertzian pressure for select solid lubricants (fitted to Eq 5 ). Source: Ref 14 More

Fig. 5 Friction coefficient in dry nitrogen as a function of temperature for MoS 2 /Sb 2 O 3 /Au coatings. Source: Ref 38 More