Switching Brake Materials To Extremely Wear-Resistant Self-Lubrication Materials via Tuning Interface Nanostructures

Abstract

Tribological performance of motion components is one of the key aspects that must be considered in a wide range of applications such as vehicles, aircrafts, and manufacturing equipment. This work demonstrates that further addition of only low-loading hard nanoparticles into a formulated nonasbestos organic brake material directly switches its functionality to a self-lubrication material. More importantly, the newly developed nanocomposites exhibit an extremely low wear rate. Comprehensive investigations on the friction interface reveal that the great friction and wear reduction are due to the formation of a nanostructured lubricious tribofilm. Tribofilm formation is continuously fed by complex molecular species released from the bulk nanocomposites, for which nanoparticles digested within the tribofilm greatly enhance its robustness and lubricity. This work gains insight into the crucial role of the interface nanostructure and paves a route for developing extremely wear-resistant self-lubrication composites for numerous applications.

Exploring the friction and wear behaviors of Ag-Mo hybrid modified thermosetting polyimide composites at high temperature

“…9(a)) indicate that the steel surface was oxidized and formed a continuous iron oxide layer according to EDXS analyses ( Fig. 9(b3)) [40,41]. Moreover, most of the amorphous phase (gray phase in Figs.…”

A Formation Mechanism and Tribological Properties of PTFE Transfer Film

“…Tribo lm formation is continuously achieved based on complex nanocomposites with the major di culty in enhancing the load-bearing ability [11]. The nanostructures could contribute to the tribophysical and tribochemical actions for the formation of resulting transfer lms [12][13]. However, some hard particles seemed to restrict the stacking of the transfer lm [14].…”

Influence of various types of clays on velocity dependence of friction composites

“…[17][18][19][20] Nanoparticles can act as a spacer at the interface to reduce the actual contact area and thus actively participating in tribological performance attributes. 21,22 Che et al 23 studied the effect of nano zirconium dioxide, silicon dioxide and aluminium oxide in friction materials for automotive brakes and concluded the wear resistance self-lubricating role of nanoparticles at the interface. He et al 24 studied the effect of zinc oxide and silicon nitride nanoparticles as a lubricant and investigated their role in reducing noise.…”