Effect of disc material on particulate matter emissions during high-temperature braking

Seo, Hyungjo; Joo, Byungsoo; Park, Jong‐Sung; Kim, Yun Cheol; Lee, Jung Ju; Jang, Hae‐Dong

doi:10.1016/j.triboint.2020.106713

Cited by 27 publications

(9 citation statements)

References 27 publications

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“…The temperature achieved, which relates to the particulate emissions is influenced by the thermal behaviour of both the brake pad and disc. Thermal conductivity of the brake disc has consequently been shown to influence the particle emissions, with particle emissions increasing as disc thermal conductivity reduces, even when the lower thermal conductivity is only at the surface through a thin oxynitride layer (Seo et al, 2021). Hardening of the disc has been demonstrated to reduce particle emissions as a result of the harder material behaviour as part of the friction surface (Perricone et al, 2018.…”

Section: Friction Materials Formulationmentioning

confidence: 99%

Non-exhaust vehicle emissions of particulate matter and VOC from road traffic: A review

Harrison

Allan

Carruthers

et al. 2021

Atmospheric Environment

212

119

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Section: Friction Materials Formulationmentioning

confidence: 99%

Non-exhaust vehicle emissions of particulate matter and VOC from road traffic: A review

Harrison

Allan

Carruthers

et al. 2021

Atmospheric Environment

212

119

View full text Add to dashboard Cite

“…In extreme conditions, the disc can reach temperatures up to 650ºC. Deformation of the type of brake pads for vehicles, but in exceptional cases, other types may be installed for the increased braking performance [1,[2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

“…The large chemical and physical di-brake discs occurs due to the heating and the thermal expansion which changes the shape of the friction surface of the disc from flat to conical. As a result, the contact between the brake pad and the disc is not achieved over the entire surface but through multiple points, leading to non-uniform wear of the brake pad, and thus to the appearance of unwanted noise [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Influence of Brake Pad Properties to Braking Characteristics

Viderščak

Schauperl

Ormuž

et al. 2022

Promet

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In this research, field and laboratory testing of three commercially available brake pads with the lowest, mid-dle, and highest price were performed. Complex field testing, where brake pads were tested in real extreme conditions on a loaded van vehicle and laboratory tests were performed. The field testing intended to investigate the temperatures that occur during the braking process and to determine the stopping distance, deceleration, and stopping time separately on the type of brake pads. Labo-ratory tests included the determination of the friction co-efficient according to ASTM G77, the structure of brake pad surfaces before and after the testing, and quantitative chemical analysis of brake pads. The aim of this study was to determine the influence of brake pad temperature on braking time depending on their purchase prices. The obtained results show a significant difference between the temperature, friction coefficient, chemical composi-tion, and braking time of the brake pads and their price.

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“…[ 17 ], the friction layer (or third body) consists of a thin layer, which is deposited on the surface of the pad and brake disc as a result of the wear process. As mentioned by Ostermeyer and Muller [ 18 ] and Seo et al [ 19 ], the existence of the plateaus is linked to the process of generating friction pair wear debris during braking, which strongly influences the friction and wear behavior of brake pairs. Osterle and Urban [ 20 ] point out that compact friction layers comprise a nanocrystalline microstructure and are observed on both pad and disc surfaces.…”

Section: Introductionmentioning

confidence: 99%

Influence of Contact Plateaus Characteristics Formed on the Surface of Brake Friction Materials in Braking Performance through Experimental Tests

et al. 2021

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This work applies a procedure for analysis and characterization of the surface of brake friction materials, correlating them with the tribological and thermal properties achieved in different vehicle braking conditions. Experiments were performed in a vehicle under two real conditions of braking operation, simulated flat track descent and emergency braking. Characteristics of the plates formed on the surfaces of the friction materials were analyzed by scanning electron microscopy (SEM) and correlated with the performance during braking, as measured by the coefficient of friction at the interface of the friction pair and temperature. As a result, the formation of the primary and secondary plateaus in these two different braking operating conditions was observed, and the relationship between the characteristics of the plateaus formed on the surface and the surface roughness parameters and performance measurements during braking.

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Effect of disc material on particulate matter emissions during high-temperature braking

Cited by 27 publications

References 27 publications

Non-exhaust vehicle emissions of particulate matter and VOC from road traffic: A review

Non-exhaust vehicle emissions of particulate matter and VOC from road traffic: A review

Influence of Brake Pad Properties to Braking Characteristics

Influence of Contact Plateaus Characteristics Formed on the Surface of Brake Friction Materials in Braking Performance through Experimental Tests

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