Optimization of brass contents for best combination of tribo-performance and thermal conductivity of non-asbestos organic (NAO) friction composites

Bijwe, Jayashree; Kumar, Mukesh; Gurunath, P.V.; Desplanques, Yannick; Degallaix, Gérard

doi:10.1016/j.wear.2007.12.016

Cited by 69 publications

(46 citation statements)

References 12 publications

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“…On the other hand, very high thermal conductivity results in an adverse effect on the brake fluid leading to what is known as "spongy brakes." Hence, an optimum range of thermal conductivity is essential for an efficient brake performance system [24]. The effect of inclusion of the fibrous component (aramid pulp and lapinus fiber) on the thermal conductivity of the composites is shown in Fig.…”

Section: Thermal Conductivitymentioning

confidence: 99%

Performance assessment of hybrid fibrous fillers on the tribological and thermo-mechanical behaviors of elastomer modified phenolic resin friction composite

2020

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The tribological and thermo-mechanical properties of multi-component friction composites can be improved through the addition of hybrid fibrous components. The present article reports an empirical route for optimization of the relative proportion of two fibrous fillers viz. aramid pulp and lapinus fibers in a friction compound where the matrix component consists of phenolic resin modified with particulate acrylonitrile butadiene rubber powder. The effects of the change in net fiber concentration, as well as the relative proportion of these two fibrous components (aramid/lapinus) on different properties of friction composites like the coefficient of friction, rate of wear, thermal conductivity, and thermal decomposition were systematically investigated to get optimized composition. Aramid pulp concentration was changed from 10 to 40 phr (parts per hundreds of phenolic resin) whereas lapinus fiber from 50 to 300 phr. It was found that the 20 phr aramid pulp loaded composites show a stable coefficient of friction of 0.24 irrespective of the relative proportion of lapinus fibers. The specific wear rate of the composites having less fiber content is found to be better than that of composites with higher loading. However, the addition of fiber in composites improves thermal conductivity. In fact, the thermal conductivity of fiber loaded composites is ~ 2.5-fold higher than that of the unfilled one. The morphological analysis of the worn surfaces through the scanning electron microscopy reveals that the abrasive wear mechanism dominates during wear process.

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Section: Thermal Conductivitymentioning

confidence: 99%

Performance assessment of hybrid fibrous fillers on the tribological and thermo-mechanical behaviors of elastomer modified phenolic resin friction composite

2020

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“…Five intermittent 'breathings' were allowed during initiation of curing to expel the volatiles. The pads were then post-cured in an oven at 150 1C for 4 h as per standard practice [20,21]. The surfaces of pads Table 1a Details of selected ingredients.…”

Section: Fabrication Of Nano-mixturementioning

confidence: 99%

“…with varying hardness, strength, surface reactivity, size, shape, toughness etc. are being used in FMs and few papers are available on the influence of such particles on tribological characteristics of FMs [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22]. In our earlier work [8,18] while exploring six types of abrasives (alumina, silica, zirconia, SiC, quartz and flint)in various amounts (0, 2, 4 and 6%), it was concluded that 2% was the optimum amount for the best combination of properties.…”

Section: Introductionmentioning

confidence: 99%

Nano-abrasives in friction materials-influence on tribological properties

Bijwe

Aranganathan

Sharma

et al. 2012

Wear

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“…These phenomena are especially localized at the interface, at the scale of the microstructure and the mechanisms of friction and wear, where energy dissipation take place [8][9][10]. Thus, it is mainly necessary, at this scale, to focus on understanding the link between the development of friction materials and braking performance.…”

Section: Introductionmentioning

confidence: 99%

Impact of the glass fibers addition on tribological behavior and braking performances of organic matrix composites for brake lining

Baklouti¹,

Cristol²,

Desplanques³

et al. 2015

Wear

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Optimization of brass contents for best combination of tribo-performance and thermal conductivity of non-asbestos organic (NAO) friction composites

Cited by 69 publications

References 12 publications

Performance assessment of hybrid fibrous fillers on the tribological and thermo-mechanical behaviors of elastomer modified phenolic resin friction composite

Performance assessment of hybrid fibrous fillers on the tribological and thermo-mechanical behaviors of elastomer modified phenolic resin friction composite

Nano-abrasives in friction materials-influence on tribological properties

Impact of the glass fibers addition on tribological behavior and braking performances of organic matrix composites for brake lining

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