Nanodiamond Particles as Secondary Additive for Polyalphaolefin Oil Lubrication of Steel–Aluminium Contact

Influence of Magnesium Stearate as Lubricant Additive on Fretting Wear under Oil Lubrication

INTRODUCTION There is concern regarding the fretting wear of rolling bearings used in various types of machines, especially those that oscillate minutely. Because fretting wear results in the deterioration of the acoustic properties of bearings, rise in the bearing torque, and flaking originating from wear scar, fretting wear has a negative impact on the performance of rolling bearings. Maruyam...

Microwave properties of nanodiamond particles

Engine Lubrication Oil Aeration

The lubrication system of an internal combustion engine serves many purposes. It lubricates moving parts, cools the engine, removes impurities, supports loads, and minimizes friction. The entrapment of air in the lubricating oil is called oil aeration. Oil aeration can be detrimental to internal combustion (IC) engines. This study attempts to determine a means to reduce the level of aeration in...

Antimicrobial activity of menthol modified nanodiamond particles

Advances in nanotechnology have seen the development of several microbiocidal nanoparticles displaying activity against biofilms. These applications benefit from one or more combinations of the nanoparticle properties. Nanoparticles may indeed concentrate drugs on their surface resulting in polyvalent effects and improved efficacy to fight against bacteria. Nanodiamonds (NDs) are among the most...

Modeling mechanical contact and lubrication in Direct Numerical Simulations of colliding particles

We developed a model for inexpensive Direct Numerical Simulations of particle-laden flow by fully resolving the hydrodynamics at all times except when the gap between colliding particles becomes comparable to the grid step. The resolved hydrodynamics were obtained with a previously developed pressure boundary integral method for direct fluid–particle simulations on Cartesian grids. The unresolv...