This radical innovation virtually eliminates friction and wear at "energy hungry" mating surfaces under the harshest frictional conditions, called boundary lubrication
The contact between the surfaces increases the friction losses due to appearance of additional boundary lubrication
phenomena in coated textile surfaces
When friction comes up to either mixed or boundary lubrication
, AW and EP additives come to play their role.
Includes sections on boundary lubrication
by colloidal systems, nanolubricants made of metal dichalcogenides, carbon-based nanolubricants, overbased detergent salts, nanolubricants made of metals and boron-based solid nanolubricants and lubrication additives.
The use of lubricant additives helps in reducing friction losses in hydrodynamic, elastohydrodynamic and boundary lubrication
According to molecular mechanics theory of friction, the total friction force under boundary lubrication
can be resolved into an adhesion component and a deformation component.
These components are designed to impart a variety of desirable properties including balanced lubricity, boundary lubrication
, static protection, and permanent surface modification.
The need for improved lubricating technologies is critical when trying to solve tribological problems concerning dry friction or boundary lubrication
under high temperatures.
Other topics include characterizing solid surfaces, adhesion, interface temperatures of sliding surfaces, fluid film lubrication, boundary lubrication
and lubricants, friction and wear screening test methods, and components and applications.
Research carried out when lubricating with oxidized sunflower oil under boundary lubrication
conditions has shown that the increasing amount of hydroperoxides reduces reduction properties of oil wear (Fox, Stachowiak 2003).
This investigation shows that free fatty acids ensure good lubrication at boundary lubrication