Wear response of non-asbestos brake pad composites reinforced with walnut shell dust

Akıncıoğlu, Gülşah; Akincioğlu, Sıtkı; Öktem, Hasan; Uygur, İlyas

doi:10.1007/s41779-020-00452-6

Cited by 28 publications

(21 citation statements)

References 27 publications

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“…The thermal oxidation on the disc surface causes film transfer (containing Fe2O3) to the sample surface. This finding is in line with previous studies [27,44,45]. Figure 8a shows the worn surface sample for the optimal level of wear.…”

Section: Morphology Of Worn Surfacesupporting

confidence: 92%

Friction Modifiers Optimization on Tribological Properties of Non-asbestos Organic (NAO) Brake Pad by DoE-Taguchi Method

Jamasri¹,

Rochardjo²,

Nawangsari³

et al. 2021

Tribol. Ind.

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Friction modifiers play an important role in modifying the friction performances on the brake pad material. This study aims to determine the optimal friction modifier composition for obtaining a high friction coefficient (CoF) stability and low wear with the Taguchi method. Taguchi's L8 orthogonal array consists of five factors, and two levels were used to design and perform the experiment. The tribological properties (CoF stability and wear) were tested using the JF160 Chase friction tester according to the SAE J661 standard. According to the S/N ratio and ANOVA analysis, the controllable factor of h-BN has a significant effect on CoF stability. While graphite and h-BN have a dominant influence on wear.

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Section: Morphology Of Worn Surfacesupporting

confidence: 92%

Friction Modifiers Optimization on Tribological Properties of Non-asbestos Organic (NAO) Brake Pad by DoE-Taguchi Method

Jamasri¹,

Rochardjo²,

Nawangsari³

et al. 2021

Tribol. Ind.

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“…The wear resistance enhanced as the palm kernel filler content increased. Akıncıoğlu et al [41] studied the influence of braking performance on walnut shell powder composite using two classes of samples (3.5 and 7% walnut shell dust). A positive influence of the walnut shell dust composite on the frictional coefficient was established.…”

Section: Brake Pads With Single-fillersmentioning

confidence: 99%

A wear rate model incorporating inflationary cost of agro-waste filled composites for brake pad applications to lower composite cost

2021

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Wear rate appraisals are currently indispensable on agro-waste filled composites for brake pads as they predict the expected lifespan of the materials. However, existing wear rate models are inaccurate as predictions omit the inflationary cost of the materials. In this paper, the idea is to account for the inflationary cost of the materials and adjust that into a pseudo wear rate model. The wear rate of agro-waste fillers in an organic matrix to create brake pads under dry sliding wear experiments was considered. Five composite specimens were fabricated in cylindrical specimen height of 14.5 mm and varying diameters of 8, 10, 12 and 15.5 mm and the material wear loss was measured. The 8, 10 and 12 mm diameter specimens revealed that the composite with the best and worst wear resistance were the wear rates of 0.6, 1.4, 1.73 mm3/Nm, and 3.07, 3.54, 4.19 mm3/Nm, respectively. The 15.5 mm diameter specimen showed lower wear rates of 2.13 and 2.14 and 1.56 mm3/Nm than commercial brake pad’s 2.58 mm3/Nm. The pseudo wear rate model predicts the impact of the independent variable i.e. inflationary cost, opportunity cost, time, and sample size. The utility of this effort is to assist the composite manufacturers to take cost-effective decisions and design optimisation can be accomplished to lower the cost of composite products.

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“…Materials representing natural plant waste such as banana peel, cocoa beans shells, rice powder, palm kernel fibre, coconut fibre, wood powder, cow bone, crab shells, hazelnut shells, corn husks and walnut shells are often used and proposed. [97][98][99][100][101][102][103][104][105][106][107] According to Arman et al, 108 brake pads with additives of agricultural materials, that is waste are useful because they do not have an impact on the environment and health and show the same properties as metal brake pads. According to this source, a certain percentage of phenolic resin with the addition of banana peel has good tribological characteristics, but the ratio must be taken into account, bearing in mind that otherwise, excessive wear occurs.…”

Section: Referencesmentioning

confidence: 99%

The analysis of the influential parameters that cause particles formation during the braking process: A review

Vasiljević

Glišović

Stojаnović

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part J:

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The braking system is one of the important systems from the aspect of vehicle safety, but it is also one of the systems that has a significant impact on the environment. Brakes are considered to be a source of non-exhaust particles, that is sources that create particles by the wear of the elements that are in contact with each other, and in this case, the brake friction elements (brake pads and rotating disc). Such particles often contain heavy metals that are part of the friction elements. There are a number of influencing factors that can affect the wear of the friction elements and increase the concentration of the formed particles. Laboratory methods of testing wear and particle formation, road tests and various simulations of brake wear are most often used for testing. In this paper, a review of methodologies for testing the formation of particles from the braking system, the materials used in the composition of the friction elements of the brake, as well as factors affecting the wear rate and concentration of particles of different sizes, based on the conclusions of other authors is presented. Based on this review, it can be concluded which quantities and factors need special attention during further research in the mechanism of formation of non-exhaust particles whose source is the vehicle braking system.

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Wear response of non-asbestos brake pad composites reinforced with walnut shell dust

Cited by 28 publications

References 27 publications

Friction Modifiers Optimization on Tribological Properties of Non-asbestos Organic (NAO) Brake Pad by DoE-Taguchi Method

Friction Modifiers Optimization on Tribological Properties of Non-asbestos Organic (NAO) Brake Pad by DoE-Taguchi Method

A wear rate model incorporating inflationary cost of agro-waste filled composites for brake pad applications to lower composite cost

The analysis of the influential parameters that cause particles formation during the braking process: A review

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