Sliding electrical contact properties of highly oriented copper fiber brush

Xiao, Jinkun; Wang, Chen; Xiao, Shu-Xian; Chen, Juan; Zhang, Chao

doi:10.1016/j.wear.2022.204541

Cited by 5 publications

(2 citation statements)

References 25 publications

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Section: Resultsmentioning

confidence: 99%

“…In addition to thermal deformation and softening of the polymer matrix, this behavior may be linked to the fact that the matrix reacts at high temperatures to generate small gas molecules and create so called air cushion, therefore decreasing the actual contact area of friction. [41,42] The COF reflects the magnitude of the contact stress between friction pairs, thus indirectly reflecting the situation of the contact area of friction pairs. [43] Figure 5 recorded the friction curves at different braking speeds: (a) 80 km/h, (b) 135 km/h.…”

Section: Friction Coefficientsmentioning

confidence: 99%

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Effect of blending cashew oil modified phenolic resin and nitrile rubber on thermal, mechanical, and tribological performance of friction materials

et al. 2023

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This study aims to investigate the effects of blending cashew nutshell oil modified phenolic resin and nitrile rubber (NBR) on the thermal, mechanical, and tribological performance of brake friction materials. The friction materials, which have a total binder of 25 wt% and different ratios of cashew nutshell oil modified phenolic resin and NBR, were prepared by hot press molding process. The experimental results show that NBR is beneficial to improve the hardness and compression modulus of the brake friction materials. The coefficient of friction (COF) is proportional to the wear rate, when the ratio of cashew nutshell oil modified phenolic resin and NBR is 13:12, the friction material has good heat resistance and exhibits excellent friction stability in the braking process, and the COF is steady between 0.420 and 0.448 at different braking speeds, while the wear resistance of material is optimal. The worn surfaces of the friction materials were examined by scanning electron microscope, and it was determined that the friction film is predominantly secondary plateaus, which can stabilize the COF and reduce the wear rate.

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Section: Resultsmentioning

confidence: 99%

Section: Friction Coefficientsmentioning

confidence: 99%