Effect of Carbonaceous Components on Tribological Properties of Copper-Free NAO Friction Material.

ABSTRACT: Copper helps to accelerate heat transfer during the braking process, allowing the brake materials to produce a stable coefficient of friction (COF), which in turn reduces wear loss and braking noise. However, its properties are also quite harmful to aquatic organisms. Finding a suitable replacement that fits all functions of copper for brake materials is not an easy feat. In this paper, six different carbonaceous components (coke, carbon black, carbon fiber, artificial graphite, natural graphite and expanded graphite) were substituted for copper in non-asbestos organic (NAO) friction materials. The hardness, thermal conductivity and tribological behaviors of these copper-free NAO friction materials were examined. Experimental results indicate that carbonaceous components improve lubricatio

SUBMITTER: Lin HY 

PROVIDER: S-EPMC7084987 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature