Low wear braking material with high friction coefficient

Shang, Xi; Yu, Kun; Zuo, Xiaochao; Yang, Huaming

doi:10.1016/j.triboint.2022.107608

Cited by 11 publications

(4 citation statements)

References 44 publications

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“…The wear surface morphology of specimen FCG9 is shown in Figure 8D, where the surface is covered with a large number of tribo-films, a feature that is beneficial to its tribological performance. 32 The formation of tribo-film is mainly caused by the continuous accumulation and compaction of wear debris, 33 as shown in Figure 9A (FCG9). It is worth noting that RSF plays an important role in this formation process.…”

Section: Wear Surface Morphology Analysismentioning

confidence: 99%

Evaluation of tribological properties of silane‐treated rapeseed straw fiber reinforced friction polymer composites prepared by wet granulation

Zhang,

Qi,

et al. 2023

Polymer Composites

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Reinforcing fibers play a key role in improving the tribological properties of friction polymer composites. Cellulose reinforcing fibers were extracted from rapeseed straw waste and prepared as friction composites based on wet granulation, and the effects of heat and rapeseed straw fiber (RSF) additions on the tribological properties were systematically investigated. The addition of RSF induced an important transformation of the major wear mechanism to abrasive wear, especially at 9 wt%, where the abundant tribo‐films contributed to the stability of the friction coefficients (fade rate 6.8%, recovery rate 106.6%), resulting in a 37.5% increase in wear resistance compared to no addition. Furthermore, XRD, FTIR and SEM analyses showed that the silane‐ethanol solution modification contributed to the good performance of RSF.Highlights Rapeseed straw fiber (RSF) and granulation technology for polymer composites. Addition of RSF transforms adhesive and fatigue wear into abrasive wear. Friction models are developed to clarify the wear mechanism transformation. A 37.5% increase in wear resistance was achieved when RSF was added at 9 wt%.

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Section: Wear Surface Morphology Analysismentioning

confidence: 99%

Evaluation of tribological properties of silane‐treated rapeseed straw fiber reinforced friction polymer composites prepared by wet granulation

Zhang,

Qi,

et al. 2023

Polymer Composites

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“…The fade resistance and recovery are the most important indexes that influence the braking reliability and effectiveness during the braking process [29,30]. The friction coefficient decreases with increasing temperature, referred to as the fade phenomenon, and increases with decreasing temperaturerecovery phenomenon [31,32].…”

Section: Fade Resistance and Recovery Propertiesmentioning

confidence: 99%

Tribological and mechanical behaviours of resin‐based friction materials based on microcrack filling

Gao

Jin

et al. 2022

Biosurface and Biotribology

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To enhance the friction performance of resin‐based friction materials, five types of specimens with different polymer ether ketone (PEEK) contents were fabricated and their physiomechanical behaviours were tested and, their tribological properties were investigated using a JF150F‐II constant‐speed tester. It was found that the addition of PEEK had a positive influence on the properties of the friction materials, and sample FM‐3 (the shorthand of ‘Friction Materials‐3’, containing 2 wt% PEEK) exhibited improved friction performance with a fade ratio and recovery ratio of 8.6% and 101.1% respectively. Among all samples, FM‐4 (the shorthand of ‘Friction Materials‐4’, containing 3 wt% PEEK) had the lowest specific wear rate with a value of 0.622 × 10−7 cm3 (N·m)−1 at 350°C. The PEEK can fill the microcracks in the composite at a high temperature and can also cover the hard abrasive particles to prevent them from directly damaging the composite. The findings from this study afford a foundation for studies to further improve the properties of resin‐based friction materials.

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“…4,5 However, its mechanical property and thermal resistance is poor, that lead to the deterioration of the tribological performance. 6 In order to handle this problem, more and more studies focused on the significant effects of reinforcing ingredients on tribological property.…”

Section: Introductionmentioning

confidence: 99%

“…As an important friction material, consisting of a large variety of ingredients, phenolic resin composites have received extensive attention 4,5 . However, its mechanical property and thermal resistance is poor, that lead to the deterioration of the tribological performance 6 . In order to handle this problem, more and more studies focused on the significant effects of reinforcing ingredients on tribological property.…”

Section: Introductionmentioning

confidence: 99%

Shape‐controllable synthesis of mullite whisker and its effect on tribological behavior of resin‐based friction materials

Ji,

Wang,

Luo

et al. 2024

Polymer Composites

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The development and design of fillers aid in improving the tribological performances of friction materials. Herein, the effects of the aspect ratio of mullite whisker on the tribological properties were studied. Mullite whiskers were prepared by the sol–gel process and the aspect ratio of the whisker was controlled by introducing aluminum fluoride (AlF3). The aspect ratio increased significantly at first and then decreased with increasing the contents of AlF3. The experimental results show that higher aspect ratio whiskers stabilized the friction coefficient while increased the wear rate. In addition, the composite with mullite whisker grown in excessive AlF3 (20%) resulted in a higher friction coefficient compared to adding inadequate AlF3 (10%). The Scanning Electron Microscope (SEM) and Energy Dispersive X‐Ray Spectroscopy (EDX) results indicated that higher aspect ratio of whisker was more likely to fall off from matrix which sequentially being compacted and formed contact plateaus during the friction process. In conclusion, it was found that abrasive wear and adhesive wear were the dominant wear mechanism.Highlights The aspect ratio of mullite whisker was controlled within the range of 6 ~ 21. The tribological properties of whiskers reinforced composites were studied. The morphology of the mullite whisker affects the friction stability. The flaky mullite whisker can improve wear resistance of the composites.

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Low wear braking material with high friction coefficient

Cited by 11 publications

References 44 publications

Evaluation of tribological properties of silane‐treated rapeseed straw fiber reinforced friction polymer composites prepared by wet granulation

Evaluation of tribological properties of silane‐treated rapeseed straw fiber reinforced friction polymer composites prepared by wet granulation

Tribological and mechanical behaviours of resin‐based friction materials based on microcrack filling

Shape‐controllable synthesis of mullite whisker and its effect on tribological behavior of resin‐based friction materials

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