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consolidated by spark plasma sintering to fabricate W-CNTs/Cu composites. The CNTs/Cu composites were fabricated using the simi-lar processes. The friction coefficient and mass wear loss of W-CNTs/Cu and CNTs/Cu composites were studied. The results showed that the W-CNT content, interfacial bonding situation, and applied load could influence the friction coefficient and wear loss of W-CNTs/Cu com-posites......
form easily on the surfaces, which protect the substrate, increase and stabilize the friction coefficient,and reduce the wear. The friction coefficient at constant speeds changes similarly to that at the inertial friction style, in case of similar temperature conditions. The friction coefficient of the present studied materials is low under wet condition, due to the fact that the moisture decreases......
Effect of Carbon Nanotube Orientation on Mechanical Properties and Thermal Expansion Coefficient of Carbon Nanotube-Reinforced Aluminum Matrix CompositesZ.Y.Liu1,2,B.L.Xiao2,W.G.Wang3,Z.Y.Ma21.... fabricated by friction stir processing(FSP) and FSP-rolling, respectively. The CNT/2009 Al composites with aligned CNTs showed much better tensile properties at room temperature and elevated temperature......
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. Generally, the pile is treated as the friction and end-bearing pile. 3 Influence of viscosity coefficient on stress and displacement According to the constitutive equation of viscoelastic body... coefficient on stress and displacement in full friction pile at time of 1 ms: (a) Stress wave; (b) Displace- ment wave Fig.2 Influence of viscosity coefficient on stress and displacement in end-bearing......
focused. Fretting tests were performed under various running conditions with regard to normal load levels and slip amplitudes. The friction coefficient between the surfaces at the fretting junction... of magnesium alloy in the slip regime is the oxidation wear, delaminated wear and abrasive wear. Key words: AZ91D magnesium alloy; fretting; friction coefficient; wear mechanism; wear behavior 1......
and PEEK particles were synergistically filled in unfilled PTFE to improve the wear resistance and maintain a relatively low friction coefficient, and the materials were studied using a reciprocating... of the PTFE composites was investigated. The results showed that the wear rate of the PTFE composites synergistically filled with nano-Zr O2 and PEEK was lower and its friction coefficient was slightly higher......
during friction for the brittle Ni-P nanocrystalline.For the charged sample,after the surface layer was removed by polishing,the wear track and the friction coefficient are consistent with those of an uncharged sample.The friction coefficient of the charged amorphous coating is very small within the first 140 s and then increases suddenly to the value corresponding to the uncharged sample.The......
friction force and the vicious friction coefficient change linearly with the external load taking the velocity at which the magnitude of the steady state friction force becomes minimum as the critical...Model-based parameter identification of comprehensive friction behaviors for giant forging pressLI Yi-bo(李毅波), PAN Qing(潘晴), HUANG Ming-hui (黄明辉) (State Key Laboratory of High Performance Complex......
process. Sheet sliding experiment was performed to measure interface friction coefficient of 5 A02/SUS304 in different lubricating conditions and normal pressure. Overlapping sheets bulging experiment... specimens. The results showed that increase of the interface friction coefficient of 5 A02/SUS304 could effectively improve the limit bulging height and deformation uniformity of 5 A02. And the fracture......
