frictionpaaluina
Frictionpaaluina is a proposed tribological phenomenon describing a non-monotonic friction response at sliding interfaces. In systems exhibiting frictionpaaluina, the coefficient of friction first decreases as sliding velocity increases within a defined range, before rising again at higher speeds. This behavior occurs under specific combinations of materials, surface chemistry, lubrication, and temperature.
Etymology: The term is a portmanteau derived from "friction" and a coined suffix "paaluina" introduced by researchers
Mechanism: The effect is attributed to a competition between contact area evolution, lubricant film formation, and
Materials and conditions: Observations are predicted in layered or coated interfaces, such as polymer-on-metal, oxide-on-metal, or
Applications and significance: If realized in practice, frictionpaaluina could inform the design of energy-efficient bearings, MEMS
See also: Tribology, Friction, Boundary lubrication, Hydrodynamic lubrication, Nano-scale interfaces.
Note: The concept remains speculative and is not widely cited in established literature.