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Carbon Fiber Reinforcement in Eco-Friendly NAO Brake Pads: Mechanical and Tribological Properties.

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Title: Carbon Fiber Reinforcement in Eco-Friendly NAO Brake Pads: Mechanical and Tribological Properties.
Authors: Zeng, Shaofeng1 (AUTHOR), Hua, Nengbin2,3 (AUTHOR) flower1982cn@126.com, Zhang, Lei2,3 (AUTHOR), Liao, Zhenlong4 (AUTHOR) loongzen1993@163.com
Source: Journal of Materials Engineering & Performance. Jun2026, Vol. 35 Issue 21, p21568-21594. 27p.
Subjects: Carbon fibers, Fiber-matrix interfaces, Surface interactions, Sliding friction, Construction materials, Mechanical behavior of materials, Mechanical wear
Abstract: This study systematically investigates the influence of carbon fiber (CF) content (0-12 wt.%) on the mechanical and tribological properties of eco-friendly non-asbestos organic (NAO) brake pads. Five formulations with varying CF contents were prepared via hot-press molding, and their microstructure, hardness, flexural strength, and friction-wear behavior under both room-temperature (RT) and high-temperature (300 °C) conditions were characterized. The results indicate that CF content significantly affects the material properties. The sample with 6 wt.% CF exhibited optimal performance, achieving the lowest friction coefficient (0.37 at RT, 0.21 at 300 °C) and wear rate [3.14 × 10-4 mm3·/(N·m) at RT, 1.39 × 10−4 mm3·/(N·m) at 300 °C], along with the highest hardness (105.67 HRM) and flexural strength (14.16 MPa). Microstructural analysis revealed uniform fiber dispersion and strong fiber-matrix interfacial bonding at this content. Excessive CF (12 wt.%) led to fiber agglomeration, defects, and deteriorated properties. The study demonstrates that incorporating an appropriate amount of CF enhances the performance of NAO brake pads, providing valuable insights for designing high-performance and environmentally friendly braking materials. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Materials Engineering & Performance is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 194359555
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PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Carbon Fiber Reinforcement in Eco-Friendly NAO Brake Pads: Mechanical and Tribological Properties.
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  Data: <searchLink fieldCode="AR" term="%22Zeng%2C+Shaofeng%22">Zeng, Shaofeng</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hua%2C+Nengbin%22">Hua, Nengbin</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<i> flower1982cn@126.com</i><br /><searchLink fieldCode="AR" term="%22Zhang%2C+Lei%22">Zhang, Lei</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liao%2C+Zhenlong%22">Liao, Zhenlong</searchLink><relatesTo>4</relatesTo> (AUTHOR)<i> loongzen1993@163.com</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Materials+Engineering+%26+Performance%22">Journal of Materials Engineering & Performance</searchLink>. Jun2026, Vol. 35 Issue 21, p21568-21594. 27p.
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  Data: <searchLink fieldCode="DE" term="%22Carbon+fibers%22">Carbon fibers</searchLink><br /><searchLink fieldCode="DE" term="%22Fiber-matrix+interfaces%22">Fiber-matrix interfaces</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+interactions%22">Surface interactions</searchLink><br /><searchLink fieldCode="DE" term="%22Sliding+friction%22">Sliding friction</searchLink><br /><searchLink fieldCode="DE" term="%22Construction+materials%22">Construction materials</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+behavior+of+materials%22">Mechanical behavior of materials</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+wear%22">Mechanical wear</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This study systematically investigates the influence of carbon fiber (CF) content (0-12 wt.%) on the mechanical and tribological properties of eco-friendly non-asbestos organic (NAO) brake pads. Five formulations with varying CF contents were prepared via hot-press molding, and their microstructure, hardness, flexural strength, and friction-wear behavior under both room-temperature (RT) and high-temperature (300 °C) conditions were characterized. The results indicate that CF content significantly affects the material properties. The sample with 6 wt.% CF exhibited optimal performance, achieving the lowest friction coefficient (0.37 at RT, 0.21 at 300 °C) and wear rate [3.14 × 10-4 mm3·/(N·m) at RT, 1.39 × 10−4 mm3·/(N·m) at 300 °C], along with the highest hardness (105.67 HRM) and flexural strength (14.16 MPa). Microstructural analysis revealed uniform fiber dispersion and strong fiber-matrix interfacial bonding at this content. Excessive CF (12 wt.%) led to fiber agglomeration, defects, and deteriorated properties. The study demonstrates that incorporating an appropriate amount of CF enhances the performance of NAO brake pads, providing valuable insights for designing high-performance and environmentally friendly braking materials. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Materials Engineering & Performance is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s11665-026-13183-9
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      – Code: eng
        Text: English
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        PageCount: 27
        StartPage: 21568
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        Type: general
      – SubjectFull: Fiber-matrix interfaces
        Type: general
      – SubjectFull: Surface interactions
        Type: general
      – SubjectFull: Sliding friction
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      – SubjectFull: Construction materials
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      – SubjectFull: Mechanical behavior of materials
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      – SubjectFull: Mechanical wear
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      – TitleFull: Carbon Fiber Reinforcement in Eco-Friendly NAO Brake Pads: Mechanical and Tribological Properties.
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            NameFull: Zeng, Shaofeng
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            NameFull: Hua, Nengbin
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            NameFull: Zhang, Lei
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            – D: 01
              M: 06
              Text: Jun2026
              Type: published
              Y: 2026
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