Tribological performance of brake friction materials containing carbon nanotubes

Hwang, Han‐Joon; Jung, S.L.; Cho, K.H.; Kim, Y.J.; Jang, Hae‐Dong

doi:10.1016/j.wear.2009.09.003

Cited by 89 publications

(51 citation statements)

References 37 publications

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“…The dispersion of nanosized rubber in phenolic resin increase the interfacial characteristics resulting into higher impact strength and heat resistance. Huang et al 26 studied the e®ect of carbon nanotubes on friction formulation and showed that the addition of carbon nanotubes may inherently contribute to an enhancement in the thermal resistance and the hot wear properties in addition to facilitating a stable coe±cient of friction. In another independent study, Singh et al 27 showed that addition of multiwalled carbon nanotubes (MWCNTs) into some class of friction formulations enhances the friction stability, fade and recovery behaviors.…”

Section: Introductionmentioning

confidence: 99%

Friction Braking Performance of Nanofilled Hybrid Fiber Reinforced Phenolic Composites: Influence of Nanoclay and Carbon Nanotubes

Singh

Patnaik

Satapathy

2013

NANO

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Graphite lubricated phenolic-based friction composites¯lled with nanoclay and Multiwalled carbon nanotubes (MWCNT) and reinforced with lapinus and Kevlar¯bers have been successfully fabricated for evaluation of their physical, chemical, mechanical and tribological properties, respectively. The increase in nanoclay and MWCNT contents led to the increase in bulk physical properties such as void contents, ash contents, water absorption and compressibility. The impact, tensile and°exural strengths get a®ected deleteriously when complemented by lapinus and kevlar¯bers in the composites. However, with the increase in nanoclay and MWCNT contents the -performance, friction fade resistance and friction recovery enhanced whereas, friction°u ctuations, stability and variability coe±cients have been observed to be dependent on the composition. The addition of nanoclay and MWCNT raises the disc temperature whereas wear resistance of the friction composites increases with the decreasing in nanoclay and MWCNT contents. Comprehensively, it is found that with the higher nanoclay: MWCNT ratio (i.e., 1.375:1.375 wt.%) overall frictional response ( p ¼ 0:386) is enhanced, showed lowest fading (fade ¼ 22:80%) and excellent recovery performance (recovery ¼ 130:37%). Finally, the wear surface morphology studies have been done by using scanning electron microscope (SEM) to analyze the wear mechanisms qualitatively by understanding nature of the friction contact patches.

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Section: Introductionmentioning

confidence: 99%

Friction Braking Performance of Nanofilled Hybrid Fiber Reinforced Phenolic Composites: Influence of Nanoclay and Carbon Nanotubes

Singh

Patnaik

Satapathy

2013

NANO

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“…(%)) of nanotubes can easily be incorporated in thermosetting composites, due to rapidly increasing viscosity and subsequent processing difficulties, at higher loadings. Even well-dispersed, shortened nanotubes can form a stiff gel, due to their high aspect ratio and resulting network-forming ability; the large interaction volume may also increase the background viscosity of the solvent/matrix 17,18 . The rheological and mechanical properties of CNT-based composites also depend on the dispersion of nanotubes and interactions between nanotubes and polymer molecules.…”

Section: Introductionmentioning

confidence: 99%

Viscoelastic behavior of multiwalled carbon nanotubes into phenolic resin

et al. 2013

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Nanostructured polymer composites have opened up new perspectives for multi-functional materials. In particular, carbon nanotubes (CNTs) have the potential applications in order to improve mechanical and electrical performance in composites with aerospace application. This study focuses on the viscoelastic evaluation of phenolic resin reinforced carbon nanotubes, processed by using two techniques: aqueous-surfactant solution and three roll calender (TRC) process. According to our results a relative small amount of CNTs in a phenolic resin matrix is capable of enhancing the viscoelastic properties significantly and to modify the thermal stability. Also has been observed that when is used TRC process, the incorporation and distribution of CNT into phenolic resin is more effective when compared with aqueous solution dispersion process

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“…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%

“…Though NPs show unique features, it is explored in very few cases in FMs such as nano-rubber [12], CNTs [13,14], nano-Cu particles [15], and nano graphite particles [19]. However in the case of abrasives, information about their potential in nano-size in FM is not yet explored fully.…”

Section: Introductionmentioning

confidence: 99%