Hybrid composite friction materials reinforced with combination of potassium titanate whiskers and aramid fibre: Assessment of fade and recovery performance

Kumar, Mukesh; Satapathy, Bhabani K.; Patnaik, Amar; Kolluri, Dilip K.; Tomar, Bharat S.

doi:10.1016/j.triboint.2010.11.009

Cited by 65 publications

(45 citation statements)

References 31 publications

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“…This argument is further supported by the SEM pictures and is discussed in Section 3.6. The reduction in the wear rate with the inclusion of the PTW fillers is a widely reported phenomenon [4][5][6][7][8][9]. In our earlier investigation [17] of dry sliding wear study on epoxy/PTW composites (without the glass fibers), similar results were observed.…”

Section: Isrn Tribologysupporting

confidence: 69%

“…The synergistic effect of PTW with other fillers in case of PMCs is studied by many researchers [4][5][6][7][8][9]. Zhu et al [4] compared the tribological performance of PTW, magnesium borate, and calcium sulfate whisker-filled nonmetallic friction materials and observed that wear resistance was maximum in case of PTW modified friction material.…”

Section: Introductionmentioning

confidence: 99%

“…Xie et al [8] studied the effect of adding PTW into PEEK/carbon fiber composites under water-lubricated sliding conditions and noticed that PTW effectively protected the carbon fiber and also confined the fatigue failure of the PEEK material. Kumar et al [9] have prepared composite friction materials based on synergistic ternary combination of PTW, aramid fiber, and graphite and characterized for friction braking performance. They found that friction build-up and friction decay was more consistent in composites with ≥7.5 wt% of aramid fibers whereas absolute friction effectiveness remained higher in the composites with ≥25 wt% of PTW.…”

Section: Introductionmentioning

confidence: 99%

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Modeling and Analysis for Wear Performance in Dry Sliding of Epoxy/Glass/PTW Composites Using Full Factorial Techniques

Sudheer¹,

Prabhu²,

Raju³

et al. 2013

ISRN Tribology

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The dry sliding friction and wear behavior of epoxy hybrid composites reinforced with glass fibers and a varying amount of potassium titanate whiskers (PTWs) fabricated by vacuum hand layup method were studied. The influence of normal load, sliding velocity, and whisker content on both friction coefficient and specific wear rate was investigated on a pin-on-disc machine. The tests were conducted at ambient conditions based on the 3 × 3 (3 factors at 3 levels) full factorial design. Analysis of variance (ANOVA) was performed to obtain the contribution of control parameters on friction coefficient and wear rate. The density and hardness of the composites were found to be enhanced with the PTW loading. The friction coefficient and wear resistance of the hybrid composites were found to be improved with the whisker content and were also greatly influenced by normal load and sliding velocity. A correlation between dry sliding wear behaviors of composites with wear parameters was obtained by multiple regressions. The worn out surface of selected samples was observed under scanning electron microscope (SEM) to identify wear mechanisms. This study revealed that the addition of the ceramic microfillers such as PTW improves the wear performance of the epoxy/glass polymer composites significantly.

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Section: Isrn Tribologysupporting

confidence: 69%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Modeling and Analysis for Wear Performance in Dry Sliding of Epoxy/Glass/PTW Composites Using Full Factorial Techniques

Sudheer¹,

Prabhu²,

Raju³

et al. 2013

ISRN Tribology

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“…The standard regulatory test procedure PVW-3212 (Pulse Velocity Wave) confirming to protocol R-90 of Economic Commission for Europe (ECE) have been adopted for the evaluation of faderecovery characteristics of the friction material. The detailed description of schematic of the machine and test procedure is briefly reported in our earlier publications ( Ref 2,3,[5][6][7]9). The uniformly polished brake pads are mounted on the sliding calliper and a nominal braking pressure of 2 MPa was applied in accordance to protocol and pad surface area.…”

Section: Tribological Performance Evaluation Methods and Procedures Formentioning

confidence: 99%

Effect of Nanoclay Reinforcement on the Friction Braking Performance of Hybrid Phenolic Friction Composites

Singh

Patnaik

Satapathy

et al. 2012

J. of Materi Eng and Perform

Self Cite

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Friction composite formulation consisting of decreasing nanoclay/lapinus fibres content, increasing graphite/aramid fibres content, and master batch of phenolic/barite is designed, fabricated, and characterized for their mechanical, thermo-mechanical, and tribological studies in braking situations. A standard test protocol is adopted for evaluating braking performance. The nanoclay content (£2.25 wt.%) enhances hardness, impact strength, storage, and loss modulus characteristics of the friction composites. Such composites exhibit higher friction stability as well as variability coefficient. However, composites with higher content of nanoclay ($2.75 wt.%) exhibit moderate level of stability coefficient and minimum variability coefficient. Fade performance improves with nanoclay content whereas friction fluctuations increase continuously with increasing nanoclay content. The disc temperature continuously rises with nanoclay contents, it becomes maximum for nanoclay content 2.75 wt.%. The same composition found to be effective in arresting temperature rise, arrests fading, improves recovery, moderate stability with minimum variability coefficient, and higher level of l-performance hence recommended. The wear performance deteriorates with lapinus/nanoclay content and improves with the amount of aramid/graphite in the friction composites. Worn surface morphology study (using SEM) reveals the associated wear mechanisms responsible for wear of investigated composites. XRD study confirms the presence and dispersion of nanoclay with other composite ingredients.

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“…A letra C, por sua vez, faz referência ao silicato de zircônia (carga de enchimento) e a letra D, a matriz (área escura) que é formada por resinas que são misturadas as borrachas. GURUNATH e BIJWE, 2007;CHO et al, 2008;MATJEKA et al, 2010;KUMAR et al, 2011;SAFFAR e SHOJAEI, 2012) e, do contracorpo (SUGISHITA e FUJIYOSHI, 1982;CHEN et al, 2003;HINRICHS et al, 2011) Figura 2.5.5: Evolução do (a) coeficiente de atrito em função da pressão de frenagem; tribofilme desenvolvido na superfície do material de fricção após testes em (b) baixa e (c) alta pressão e temperatura observado por MEV [note as diferenças na escala] -direção de deslizamento da direita para a esquerda; (c) superfície de contato e seção transversal do tribofilme observada por MEV revelando uma camada fina, homogênea e bem compacta no topo (ERIKSSON e JACOBSON, 2000).…”

Section: Tribofilme No Par Tribológico: Materials De Fricção E Disco Dunclassified

Aplicação da tribologia na pesquisa e desenvolvimento de materiais para embreagens automotivas: estudo do atrito e do desgaste com foco na origem do desenvolvimento, estabilidade e deterioração do tribofilme

Fernandes¹

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Hybrid composite friction materials reinforced with combination of potassium titanate whiskers and aramid fibre: Assessment of fade and recovery performance

Cited by 65 publications

References 31 publications

Modeling and Analysis for Wear Performance in Dry Sliding of Epoxy/Glass/PTW Composites Using Full Factorial Techniques

Modeling and Analysis for Wear Performance in Dry Sliding of Epoxy/Glass/PTW Composites Using Full Factorial Techniques

Effect of Nanoclay Reinforcement on the Friction Braking Performance of Hybrid Phenolic Friction Composites

Aplicação da tribologia na pesquisa e desenvolvimento de materiais para embreagens automotivas: estudo do atrito e do desgaste com foco na origem do desenvolvimento, estabilidade e deterioração do tribofilme

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