Influence of Adhesive Wear and Thermal Degradation on the Frictional Characteristics of Paper-Based Friction Materials: A Comparative Study

Abstract

is paper discusses the effects of adhesive wear and thermal degradation on the dry frictional characteristics of paper-based friction materials against steel material. Some commercial paper-based friction materials typically used for clutch applications were subjected to adhesive wear and thermal degradation and the dry frictional characteristics were then measured at different states on a rotational tribometer. e experimental results reveal that both adhesive wear and thermal degradation have opposite effects on the frictional characteristics, where the static and kinetic coefficients of friction increase due to adhesive wear but decrease due to thermal degradation.

Distinguishing the effects of adhesive wear and thermal degradation on the tribological characteristics of paper-based friction materials under dry environment: A theoretical study

“…11(d). [50] and the dry contact of paper-based friction material against steel in our previous work [8]. It is evident from Figs.…”

Friction Behavior of a Wet Clutch Subjected to Accelerated Degradation

“…e hydraulic pump ( ) provides enough oil �ow from the oil tank (7) for the lubrication and actuation with the main pressure of 25 bar. e safety valve (10) protects the proportional valve (11), which is connected to the actuation line of the clutch (5). Before entering the clutch, the applied pressure is measured by the pressure sensor (1 ), and the signal is sent to the data acquisition system (17).…”

“…Low surface porosity implies that the ATF is not easily evacuated from the contacting surfaces, so that the contact between the friction and separator discs is predominantly controlled by the ATF. Nevertheless, the thermal degradation occurring in the friction material can also contribute to the reduction of the COF [11].…”

Friction and Wear Behaviors of Porous Paper-Based Friction Pairs in Wet Clutches by Pin-on-Disc Tests

“…It was observed that the friction film was not beneficial to keep high COF. Ompusunggu et al [9] investigated the effect of adhesive wear and thermal degradation on the dry friction behaviors of paper-based friction material against steel. Fei et al [10] investigated the friction behaviors and thermal degradation of carbon fiber reinforced paper-based friction material with different phenolic resin contents.…”