Influence of natural barytes purity levels on the tribological characteristics of non-asbestos brake pads

Abstract

Purpose

This paper aims to deal with the effect of natural barytes purity levels on the tribological performance of brake pads.

Design/methodology/approach

In this study, brake pads were developed by varying three different natural barytes without varying other ingredients. The brake pads were developed as per the standard industrial practice. The physical, mechanical and thermal properties of the developed brake pads were tested as per the industrial standards. The tribological properties were analyzed using a full-scale inertia brake dynamometer. Worn surface analysis was done using scanning electron microscope coupled with elemental mapping.

Findings

The experimental results indicate that the brake pads filled with natural barytes 95% purity had good physical, chemical and mechanical properties with stable friction and less wear rate due to reduced impurity level preventing frictional undulations.

Originality/value

This paper explains the effect of the purity level of natural barytes in brake pads formulation to enhance the tribological performance by altering tribofilms and preventing friction undulations.

Citation

R., V., S., M. and D., L.S. (2020), "Influence of natural barytes purity levels on the tribological characteristics of non-asbestos brake pads", Industrial Lubrication and Tribology, Vol. 72 No. 3, pp. 349-358. https://doi.org/10.1108/ILT-10-2019-0424