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<p>Brake pad systems encounter various issues such as high friction coefficient, thermal overload, excessive wear, and surface contamination, resulting in multiple failure modes like heat cracks, striations, grooves on the friction ring, and subsurface corrosion. To reduce these challenges, ensure safety and eliminate failure modes, this study proposes the utilization of carbon fiber-reinforced polymers by incorporating hybrid nano-additives composed of Al<sub>2</sub>O<sub>3</sub>, MWCNT, and SiO<sub>2</sub>. The research investigates the impact of different additive nano-powders on microstructural and tribological properties of carbon fibers. Several examinations, including mechanical tests (microhardness), tribological assessments (wear test), and microstructural observations (scanning electron microscope), were conducted, both before and after the wear test. The wear rate of prepared specimens was calculated and analyzed, revealing that carbon fibers reinforced with Al<sub>2</sub>O<sub>3</sub> exhibited the lowest wear rate (7.389 × 10<sup>−6</sup> gm/sec). Furthermore, the failure modes of carbon fibers reinforced with Al<sub>2</sub>O<sub>3</sub> were significantly reduced following the wear test.</p>

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Effect of innovative hybrid nano additives of Al2O3-MWCNT-SiO2 on microstructural and tribological characteristics of carbon fiber-reinforced polymers for enhanced brake pad safety

  • 期刊论文

  • 发表日期：

    2026年2月11日

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  • Majed H. Moosa,
  • W. M. Shewakh,
  • R. A. Ibrahem,
  • Mohamed Abu-Okail,
  • W. M. Farouk

摘要

Brake pad systems encounter various issues such as high friction coefficient, thermal overload, excessive wear, and surface contamination, resulting in multiple failure modes like heat cracks, striations, grooves on the friction ring, and subsurface corrosion. To reduce these challenges, ensure safety and eliminate failure modes, this study proposes the utilization of carbon fiber-reinforced polymers by incorporating hybrid nano-additives composed of Al2O3, MWCNT, and SiO2. The research investigates the impact of different additive nano-powders on microstructural and tribological properties of carbon fibers. Several examinations, including mechanical tests (microhardness), tribological assessments (wear test), and microstructural observations (scanning electron microscope), were conducted, both before and after the wear test. The wear rate of prepared specimens was calculated and analyzed, revealing that carbon fibers reinforced with Al2O3 exhibited the lowest wear rate (7.389 × 10−6 gm/sec). Furthermore, the failure modes of carbon fibers reinforced with Al2O3 were significantly reduced following the wear test.