Frictional properties of a self-lubricating nanocomposite material with an A–OOO polyimide matrix reinforced by gas-phase synthesized tungsten diselenide (WSe2) nanoparticles are studied with a homemade low sliding speed tribometer. Tungsten diselenide is often used as a solid lubricant due to its layered structure yielding to anisotropy, which enhances lubrication properties. To facilitate molecular adhesion friction mechanism, friction against a very smooth steel surface (a Johansson gauge block) was used. It is shown that the composite material reinforced with WSe2 nanoparticles has enhanced frictional performance including lower friction and adhesion.

Issue Section:
Micro-Nano Tribology
Keywords:
polyimide, nanocomposite material, friction, nanoparticles, dichalcogenides, self-lubrication
Topics:
Friction, Nanocomposites, Nanoparticles, Tungsten, Steel, Lubrication, Adhesion, Composite materials

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