Study of the Influence of the Iron Oxide(III) on the Tribotechnical and Vibroacoustic Characteristics of the Frictional Composites for the Stationary Friction Units

Abstract

In addition to the friction coefficient and the linear wear intensity of the frictional materials, the vibroacoustic characteristics are of importance, especially for the stationary friction units. Noise and vibration in the friction units lead to the problems connected with the technological operation of materials. This paper presents the results of studies of tribotechnical and vibroacoustic characteristics of highly filled friction composites depending on the content of iron oxide (Fe₂O₃). Based on the results of tribotechnical tests and noise measurement generated by stationary friction, it is established that the optimum tribotechnical and vibroacoustic properties of friction composites are obtained within the range of low concentrations of iron oxide (0.6–1.2 wt %).