Effect of Carbon in Brake Friction Materials on Friction Characteristics

Jaafar, Talib Ria; Zaharudin, Aznifa Mahyam; Pahmi, Arif; Kasiran, Ramlan; Othman, Eliasidi Abu; Park, Kulim Hi-Tech

doi:10.21315/jes2018.14.4

Cited by 8 publications

(5 citation statements)

References 16 publications

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“…If the temperature of the brake disc crosses 650°C, the brake disc material, cast iron, changes its structure and transforms into a hard material called cementite. The cementite structure will create high spots that can lead to brake judder and premature disc wear [20,21]. The brake judder is the most critical NVH problem, and it is a forced vibration proportional to the vehicle's speed.…”

Section: Assessing the Influence Of Brake Disc Temperaturementioning

confidence: 99%

Study of friction, wear and plastic deformation of automotive brake disc subjected to thermo-mechanical fatigue

Sathish¹,

Maniraj²,

Thangarasu³

2023

Matéria (Rio J.)

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The function of the automotive braking system is to reduce the vehicle's speed or stop within a stipulated time. An efficient braking system dissipates all heat generated during braking into the environment before subsequent braking is applied. The heating and cooling cycles, in combination with mechanical loads during braking operation, cause thermal stresses on the surface of the brake disc. The resulting thermomechanical fatigue (TMF) on the brake disc is a life-limiting factor and causes failure. Understanding their impact, given experimental investigation using a full-scale inertia brake dynamometer is the paramount aspect. The reference disc, that is used for the experiment is a wheel-mounted brake disc. During the investigation, it is observed that (i) friction coefficient is sensitive to vehicle speed and braking pressure (ii) fade test records a maximum brake disc temperature of 403°C (iii) repeated thermal and mechanical cycles induced plastic deformation and cracks on the brake disc. The study provides insight into the parameters contributing to the damage at the friction surface of the brake disc that is subjected to Thermo Mechanical Fatigue (TMF).

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Section: Assessing the Influence Of Brake Disc Temperaturementioning

confidence: 99%

Study of friction, wear and plastic deformation of automotive brake disc subjected to thermo-mechanical fatigue

Sathish¹,

Maniraj²,

Thangarasu³

2023

Matéria (Rio J.)

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“…High strength and stiffness, as well as excellent thermal conductivity and heat dissipation, are all characteristics of carbon fibre. Friction materials made of carbon fibre are frequently used in high-performance settings, like racing [53]. Carbon fibre-based brake friction materials have a high coefficient of friction, which provides strong braking performance even in wet or slippery conditions, in addition to their thermal properties.…”

Section: Modern Advancements In Friction Materials For Brake Pad-discmentioning

confidence: 99%

A Review on Fabrication of Recent Novel Brake Friction Materials

Pradhan,

Shanti

2023

IJRTE

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The primary means of mobility today are vehicles. For better braking system better materials are provided for tribo pairs. To reduce the cost of the tribo pairs instead of metals, composite materials are used recent days. This topic deals with the combination of brake disc and brake pad which is generally called tribo pair. As a consequence of its distinctive qualities like high fatigue strength, high hardness, high strength, high specific modulus, light weight and low density, the use of Al-SiC Metal Matrix Composites for brake disc & pad have been steadily expanding in recent years. The properties of the metal matrix composite like tensile and compression strength, as well as hardness, are investigated in order to identify the optimal carbide percent. For brake pad different material compositions are mixed together and in powder metallurgy method brake pad fabrication is developed. Previously Asbestos is commonly employ as a material for brake pads in automobiles. Brake pads are subjected to a great deal of friction, which generates a great deal of heat. Asbestos is a better heat absorber and dissipater than other materials. The main downside of asbestos is that it is extremely harmful to human's health. That’s why asbestos can be replaced by other materials. This paper mainly covers recent advancement of composite brake friction materials along with comparison of every component with proper validation.

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“…[3][4][5] Although the performance of friction composites has yielded different results in different applications, the results can be divided into certain groups. Asbestos, which was the most important component of commercially produced friction materials in the past, has begun to be replaced by new materials such as ceramic fibers, [6,7] organic fibers, [8,9] metal fibers, [10,11] and carbon fibers [12,13] as reinforcements. Selecting and designing a high-quality friction materials consisting of many components is a challenging task.…”

Section: Introductionmentioning

confidence: 99%

The evolution of tribological properties of graphite and glass fiber reinforced novolac matrix hybrid composites

Kocaman

Çuvalcı

2022

Polymer Composites

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Reinforcing the novolac matrix with glass fiber (GF) and graphite (Gr) was a promising method for producing high‐performance friction composites. In this context, the morphology of the matrix and additive particles used in the production of friction composites, microstructures, wear surfaces, and wear debris of friction composites were examined by scanning electron microscopy‐energy dispersive spectroscopy, while the crystal phases of the materials were scanned by X‐ray diffraction. Density measurements (Archimed's method), hardness, tensile behaviors, and thermal analyses (thermogravimetric analysis and differential scanning calorimetry) of friction composites were performed. The variations in coefficient of friction (COF) and temperature with the change in sliding time were observed in detail at different additive ratios. The tribological behaviors of these composites were tested using a computer supported block‐on ring machine at sliding speeds of 200, 250, 300, and 350 rpm, applied loads of 50, 100, 150, and 200 N and constant time of 1800 s under dry conditions. Results indicated that with increase in the GF and Gr content, the stability of the (COF) became more stable and effectively reduced the specific wear rate. In addition, the wear resistance increased in parallel with the increase in normal loads and sliding speeds for all conditions.

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Effect of Carbon in Brake Friction Materials on Friction Characteristics

Cited by 8 publications

References 16 publications

Study of friction, wear and plastic deformation of automotive brake disc subjected to thermo-mechanical fatigue

Study of friction, wear and plastic deformation of automotive brake disc subjected to thermo-mechanical fatigue

A Review on Fabrication of Recent Novel Brake Friction Materials

The evolution of tribological properties of graphite and glass fiber reinforced novolac matrix hybrid composites

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