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. 25 Comparison of wear depth and friction coefficient of various coatings, obtained by Falex tester. Countermaterials: Cr-Mo structural steel; substrate: M2; sliding velocity: 0.1 m/s (0.33 ft/s); applied load: 400 kgf (4000 N); testing period: 4 min; lubricant: none. PACVD, plasma More

Fig. 27 Comparison of friction coefficient and wear observed in steel sheet ironing tests. CVD, chemical vapor deposition; TRD, thermoreactive deposition/diffusion More

Fig. 3 Application of various friction coefficient determination methods to five tests performed on an experimental rolling mill: Al 5052-H19, emulsion lubrication, SAE 52100 roll steel grade, speed 1 m/s, and variable reduction. Source: Ref 50 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

Fig. 12 Friction coefficient evolution in different atmospheres for a Si 3 N 4 ball sliding on a diamondlike carbon coating at 0.3 GPa contact stress. Source: Ref 50 . Reproduced with the permission of AIP Publishing More

Fig. 16 Friction coefficient as a function of thickness for pure In films. Source: Ref 59 More

Fig. 17 Friction coefficient as a function of temperature for MoS 2 and WS 2 in argon (a) and air (b). Source: Ref 67 More

Fig. 18 Friction coefficient as a function of temperature for a 30 μm thick PbO-SiO 2 film at 9.8 N applied load. Source: Ref 67 More

Fig. 19 Ionic potential and average friction coefficient at 600 ºC (1110 ºF) for various oxides. Source: Ref 69 More

Fig. 20 Friction coefficient for WS 2 film grown using atomic layer deposition in the as-deposited condition (a), and after annealing for 1 h at 500 °C, or 930 °F (b), compared with that for RF-sputtered WS 2 film (c). Source: Ref 83 More

Fig. 6 Friction coefficient with time under the lubrication conditions of dry friction, regular lubrication, and superlubricity with the lubrication of H 3 PO 4 solution (pH = 1.5). Tribopair is Si 3 N 4 ball and glass substrate. The load is 3N, and the rotational speed is 180 rpm. More