FLYWHEEL : Jurnal Teknik Mesin Untirta
Vol 12, No 1 (2026): April

The Effect of Compaction Pressure and Matrix Percentage on the Properties of Phenolic Resin-Metal Powder-RHA Hybrid Composites for Brake Pads

Sukanto, Sukanto (Politeknik Manufaktur Negeri Bangka Belitung)
Ardiansyah, Ardiansyah (Politeknik Manufaktur Negeri Bangka Belitung)
Erwanto, Erwanto (Politeknik Manufaktur Negeri Bangka Belitung)
Budi, Abdul (Politeknik Manufaktur Negeri Bangka Belitung)
Wanto, Agus (Politeknik Manufaktur Negeri Bangka Belitung)



Article Info

Publish Date
20 Dec 2025

Abstract

This study aims to analyze the effect of compaction pressure variation and matrix percentage on the mechanical and physical properties of phenolic resin–metal powder–RHA hybrid composites as an alternative non-asbestos brake pad material. The composite manufacturing process was carried out using the powder metallurgy method, which included milling, compaction at pressures of 5000, 5300, and 5600 psi, and sintering at a temperature of 130°C for 10 minutes. The tests included Brinell hardness based on ASTM E110-14 and density using the Archimedes method according to ASTM B962-17. The results showed that an increase in compaction pressure had a significant effect on increasing both hardness and density. Optimal conditions were obtained at a pressure of 5600 psi and a matrix fraction of 35%, resulting in a hardness of 103.77 HB and a density of 1.54 g/cm³. These values meet the standards for commercial brake pad materials, namely a hardness of 65–105 HB and a density of 1.5–2.5 g/cm³. Thus, the developed hybrid composite has the potential to be used as an environmentally friendly brake pad material to replace asbestos. Further research is recommended to examine the tribological properties and wear resistance to ensure the performance of the material under actual working conditions.

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Journal Info

Abbrev

jwl

Publisher

Subject

Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

Description

The journal publishes original and (mini)review articles covering the concepts of materials science, mechanics, kinematics, thermodynamics, energy and environment, mechatronics and robotics, fluid mechanics, tribology, cybernetics, industrial engineering and structural analysis. The journal follows ...