Tribological Behavior of Ball-Milled Expanded Graphite/B Powders in a High-Energy Mill

Yu Shan Li

doi:10.4028/www.scientific.net/AMR.577.55

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Tribological Behavior of Ball-Milled Expanded Graphite/B Powders in a High-Energy Mill
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Tribological Behavior of Ball-Milled Expanded Graphite/B Powders in a High-Energy Mill

Abstract:

A mixture of expanded graphite (EG) and boron was ball-milled in a high-energy mill. The microstructure of the milled EG/B powders was characterized by transmission electron microscopy (TEM). The tribological behavior of the milled powders used as lubricating additive was investigated by using a tribo-tester, and the morphology of the worn tribo-surfaces were observed by scanning electron microscope (SEM). The results show that the powders used as lubricating additive have an obvious anti-friction and wear resistance effect, and the lager the applied load, the lower the friction coefficient and the wear severity.