The Influence of Surface Texturing on the Frictional Behaviour in Starved Lubricated Parallel Sliding Contacts

Abstract

Starvation occurs when the lubricated contact uses up the lubricant supply, and there is not enough lubricant in the contact to support the separation between solid surfaces. On the other hand, the use of textures on surfaces in lubricated contacts can result in a higher film thickness. In addition, a modification of the surface’s geometrical parameters can benefit the tribological behaviour of the contacts. In this article, for parallel sliding surfaces in starved lubricated conditions, the effect of surface texturing upon the coefficient of friction is investigated. It is shown that surface texturing may improve film formation under the conditions of starvation, and as a result, the frictional behaviour of the parallel sliding contact. Furthermore, the effect of starved lubrication on textured surfaces with different patterns in the presence of a cavitation effect, and its influence on frictional behaviour, is investigated. It is shown that surface texturing can reduce the coefficient of friction, and that under certain conditions, the texturing parameter could have an influence on the frictional behaviour of parallel sliding contacts in the starved lubrication regime.

Effects of surface topography through laser texturing on the surface characteristics of zirconia-based dental materials: surface hydrophobicity, antibacterial behavior, and cellular response

“…Surface modification can provide significant control over the specific biological responses of biomaterials used in dental implants around the cell tissues [27][28][29][30][31][32][33][34][35][36][37][38][39][40][41]. Several studies have demonstrated that micro-and nanoscale topographic biomaterials are beneficial for protein absorption, cell adhesion, proliferation, and antibacterial activity [42][43][44].…”

“…It has been demonstrated that surface textures are an effective method for reducing bacterial behavior at interfaces [28][29][30]. Several successful attempts have been made to study the antibacterial behavior of dental materials using laser surface texturing methods [14,31,32].…”

Microstructuring glass surfaces using a combined masking and microslurry-jet machining process

“…A variety of manufacturing processes have been developed and evaluated for structuring engineering surfaces at the microscale. Applications range from modifying tribological properties, for which the relationship between friction and surface textures is researched [1,2], to inducing hydrophobicity by microstructuring surfaces [3], where contact angle measurements are used to assess the hydrophobicity or hydrophilicity of the surfaces. Convex microstructural features might offer additional advantages in this context [4].…”

Editorial: Special Issue “Laser-Induced Periodic Surface Nano- and Microstructures for Tribological Applications”

“…Bijani et al [7] developed a theoretical model to study the effects of surface texturing on the frictional behaviour of parallel sliding contacts under starved lubrication conditions. Applying a deterministic asperity contact model, which considered the effects of different scales of surface features (texture and roughness), it was shown that surface texturing may improve lubricant film formation under the conditions of starvation.…”