Friction characteristics of a brake friction material under different braking conditions

Kchaou, Mohamed; Sellami, A.; Elleuch, Riadh; Singh, Harpreet

doi:10.1016/j.matdes.2013.05.015

Cited by 58 publications

(32 citation statements)

References 17 publications

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“…The friction film distribution, morphology, thickness and chemical composition depend on the test severity. The pointed evidences are in accordance with previous works focusing on brake friction materials [29,33,36,41,50].…”

Section: Tribometer Samples: Om and Sem Characterizationssupporting

confidence: 91%

Contribution on understanding the friction film development in the performance of a dry automotive clutch system

Fernandes¹,

Zanotto²,

Sinatora

2015

Wear

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Section: Tribometer Samples: Om and Sem Characterizationssupporting

confidence: 91%

Contribution on understanding the friction film development in the performance of a dry automotive clutch system

Fernandes¹,

Zanotto²,

Sinatora

2015

Wear

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“…As demonstrated by Kchaou et al [16] and Sellami et al [17], when the glass fibers were continuously exposed over the contact surface of brake friction material, higher levels of COF were obtained. Furthermore, according to Kishore et al [18], the tribosystem responses depend on the fiber type, concentration, formulation, and distribution into the base.…”

Section: Discussionmentioning

confidence: 83%

The Role of Counter-Face Roughness on the Tribological Performance of a Clutch System Tested with a Pin-On-Disc Tribometer

Fernandes¹,

Zanotto²,

Sinatora

2016

Lubricants

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This study was a continuous investigation of the roles played by the tribofilm on dry automotive clutch system performance. Tribological experiments were performed by the addition of wear debris at the beginning of tribometer tests and by reducing the surface roughness of a cast iron counter-face. The initial surface conditions of cast discs were 0.2 and 1.2 µm. The pin-on-disc tests were carried out at three different PV levels: 3.08, 7.88, and 10.09 MPa¨ms´1, and the current results were correlated to those previously obtained in the standard tribometer procedure. When the wear debris was added into the tribosystem, the friction coefficient level dropped drastically while the assembly wear rate rose. In contrast, the modified cast discs provided a reduced wear rate of assembly and a higher and more stable friction coefficient level. These improvements were obtained in a severe condition where higher temperature levels were reached. For the tests with added debris, SEM observations revealed a more intense tribofilm development over the worn surfaces of the clutch friction material. The smoothest cast disc did not damage the developed tribofilms and maintained them more stably due to a reduction in contact area stresses at the highest tribometer test.

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“…The frictional interface is actually composed of many microconvex points. An instantaneous high temperature occurs constantly via these microconvex point contacts, even when the friction process occurs at room temperature . A theoretical calculation also indicates that the instantaneous high temperature can be up to more than 250 °C, so we should use the E ′ to explain the specific wear rate after 250 °C.…”

Section: Resultsmentioning

confidence: 99%

Coupling hybrid of graphene oxide and layered zirconium phosphonate to enhance phenolic resin–based friction materials

Deng

Huang

Liu

et al. 2018

J of Applied Polymer Sci

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A two-dimensional (2D) heterogeneous coupling nanoparticle composed of graphene oxide and zirconium phosphonate (GO-ZrP) was synthesized layer by layer in a self-assembly manner. A rigid layer of zirconium phosphonate can inhibit the curling of graphene oxide and then improve its dispersion. The GO-ZrP was then applied to phenolic resin-based friction materials by blending and hot pressing to improve their friction properties. The results show that the phenolic resin-based friction materials modified by GO-ZrP possess excellent tribological, mechanical, and thermal properties. Also, the specific wear rate of the material decreased nearly fivefold with the optimal loading, while the friction coefficient was basically stable. Synergistic effects between GO and ZrP nanosheets provide good prospects for the application of 2D nanofillers in friction materials. V C 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46543.

show abstract

Friction characteristics of a brake friction material under different braking conditions

Cited by 58 publications

References 17 publications

Contribution on understanding the friction film development in the performance of a dry automotive clutch system

Contribution on understanding the friction film development in the performance of a dry automotive clutch system

The Role of Counter-Face Roughness on the Tribological Performance of a Clutch System Tested with a Pin-On-Disc Tribometer

Coupling hybrid of graphene oxide and layered zirconium phosphonate to enhance phenolic resin–based friction materials

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