Braking friction materials based on fiber-reinforced composites with carbon and ceramic matrices

Garshin, A. P.; Kulik, V. I.; Nilov, A. S.

doi:10.1007/s11148-009-9099-6

Cited by 10 publications

(5 citation statements)

References 15 publications

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“…In recent decades, special attention is paid to ceramic matrix pads which are formulated from light and refractory ingredients (e.g. carbon, silicon carbide) [34]. They can be classified to two main groups: carbon/carbon composites, restricted to special applications like aviation (air crafts) and racing (formula-1 racing cars), and carbon/ceramic composites which use is limited to luxury cars such as Porsche, Bugatti Veyron, and Ferrari Enzo, because of their high manufacturing cost [35,36].…”

Section: Specificity Of Brake Friction Materialsmentioning

confidence: 99%

“…They can be classified to two main groups: carbon/carbon composites, restricted to special applications like aviation (air crafts) and racing (formula-1 racing cars), and carbon/ceramic composites which use is limited to luxury cars such as Porsche, Bugatti Veyron, and Ferrari Enzo, because of their high manufacturing cost [35,36]. Despite the high production cost, this type of friction materials offers the advantages to have low density, high wear resistance, high operating temperatures over 1000°C [34] and low noise generation during braking [37].…”

Section: Specificity Of Brake Friction Materialsmentioning

confidence: 99%

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Braking performance of friction materials: a review of manufacturing process impact and future trends

Hentati

Makni

Elleuch

2023

Tribology - Materials, Surfaces & Interfaces

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The brake friction materials are composite materials with multi-ingredient systems which induce a complex formulation. This complexity is also the result of the manufacturing parameters effects, such as mixture sequence and duration, moulding pressure, time, temperature and heat treatment time. Therefore, heterogeneity is induced as well in the characteristics (microstructure, density, etc.) as in the behaviour (mechanical, tribological, dynamic, etc.). Despite the study of the effect of manufacturing parameters on the friction material behaviour, the synergistic effect between the heterogeneity and the braking performance is still not well reported. This paper strives to eliminate the cloud of uncertainty of the role of manufacturing parameters on the friction material performances by providing most used process of elaboration, and most required properties for contemporary brake system. Innovation in brake discs and pad manufacturing by optimized algorithms, prediction approaches, and 3D printing process is presented as innovative methods to improve braking materials performance.

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Section: Specificity Of Brake Friction Materialsmentioning

confidence: 99%

Section: Specificity Of Brake Friction Materialsmentioning

confidence: 99%

Braking performance of friction materials: a review of manufacturing process impact and future trends

Hentati

Makni

Elleuch

2023

Tribology - Materials, Surfaces & Interfaces

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“…The aim was to determine their suitability for applications demanding surfaces with high levels of friction and exceptional wear resistance. There exists a clear industry demand for such materials due to the limitations of conventional organic-based frictional materials, typically composed of polymer resins with additions of different components like carbon fibers, asbestos, metal wires, and powders [38]. While these conventional materials offer medium-to-high friction coefficients (less than 0.5 [38,39]), along with cost-effectiveness and ease of production, they present relatively high wear rates ranging from 10 −5 to 10 −4 mm 3 /Nm [39], thermal instability, and potential carcinogenic risks (associated with resin and asbestos).…”

Section: Introductionmentioning

confidence: 99%

The Characteristics of Light (TiCrAl0.5NbCu)CxNy High-Entropy Coatings Deposited Using a HiPIMS/DCMS Technique

Zoita,

Dinu,

Parau

et al. 2023

Crystals

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Multi-component high-entropy (TiCrAl0.5NbCu)CxNy coatings targeting applications requiring medium-to-high friction and wear-resistant surfaces were fabricated through the co-sputtering of elemental targets in an Ar + CH4 + N2 reactive atmosphere using a hybrid HiPIMS/DCMS technique. Two sets of samples were fabricated: (a) (TiCrAl0.5NbCu)Cx high-entropy carbides (HEC) and (b) (TiCrAl0.5NbCu)CxN0.13 high-entropy carbonitrides (HECN), 0 ≤ x ≤ 0.48. The structural, mechanical, tribological, and corrosion resistance properties were thoroughly investigated. The metallic sample exhibits a single BCC structure that changes to FCC via an intermediary amorphous phase through the addition of C or N to the content of the films. The crystallinity of the FCC phases is enhanced and the density of the films decreases down to 5.5 g/cm3 through increasing the carbon fraction up to 48%. The highest hardness of about 16.9 GPa and the lowest wear rate of about 5.5 × 10−6 mm3/Nm are presented by the samples with the largest carbon content, x = 0.48. We found a very good agreement between the evolution of H/E and H3/E2 parameters with carbon content and the tribological behavior of the coatings. The best corrosion resistance was presented by the low-carbon carbonitride samples, showing a charge transfer resistivity of about 3 × 108 Ω∙cm, which is more than three times larger than that of the metallic HEA. The best tribological characteristics for envisioned application were presented by (TiCrAl0.5NbCu)C0.3N0.13, showing a coefficient of friction of 0.43 and a wear rate of about 7.7 × 10−6 mm3/Nm.

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“…Usually, engineering components that require high friction (brakes and clutch elements) are made of polymer resin, with inorganic additions of asbestos, mica, talc, carbon fibers, metal wires, and powders [21,22,23]. The friction coefficient for such materials may vary between 0.3 and 0.5.…”

Section: Introductionmentioning

confidence: 99%

Wear Resistant Coatings with a High Friction Coefficient Produced by Plasma Electrolytic Oxidation of Al Alloys in Electrolytes with Basalt Mineral Powder Additions

et al. 2019

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To achieve a better performance of engineering components, modern design approaches consider the replacement of steel with lightweight metals, such as aluminum alloys. However, bare aluminum cannot satisfy requirements for surface properties in situations where continuous friction is needed. Among the various surface modification techniques, plasma electrolytic oxidation (PEO) is considered as promising for structural applications, owing to its hard and well-adhered ceramic coatings. In this work, the surfaces of two Al alloys (2024 and 6061) have been modified by PEO coating (~180 µm) reinforced with basalt minerals, in order to increase the coefficient of friction and wear resistance. A slurry electrolyte, including a silicate-alkaline solution with addition of basalt mineral powder (<5 µm) has been used. The coating composition, surface morphology, and microstructure were studied using X-ray diffraction, scanning electron, and optical microscopy. Linear reciprocating wear tests were employed for the evaluation of the friction and wear behavior. It was found that the coatings reinforced with basalt mineral showed that the wear and friction coefficients reached values 10−6–10−7 (mm3 N−1 m−1) and 0.7–0.85, correspondingly (sliding distance of 100 m). In comparison with the characteristics of resin-based materials (10−5–10−4 (mm3 N−1 m−1) and 0.3–0.5, respectively), the employment of thin inorganic frictional composites may bring considerable improvement in the thermal stability, durability, and compactness, as well as a reduction in the weight of the final product. These coatings are considered an alternative to the reinforced resin composite materials on steel used in frictional components, for example, clutch disks and braking pads. It is expected that the smaller thickness of the active frictional material (180 μm) reduces the volume of the wear products, extending the service intervals associated with filter and lubricant maintenance.

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Braking friction materials based on fiber-reinforced composites with carbon and ceramic matrices

Abstract: The paper discusses the making and use of a new generation of friction materials based on fiber-reinforced composites with carbon and ceramic matrices.

Cited by 10 publications

References 15 publications

Braking performance of friction materials: a review of manufacturing process impact and future trends

Braking performance of friction materials: a review of manufacturing process impact and future trends

The Characteristics of Light (TiCrAl0.5NbCu)CxNy High-Entropy Coatings Deposited Using a HiPIMS/DCMS Technique

Wear Resistant Coatings with a High Friction Coefficient Produced by Plasma Electrolytic Oxidation of Al Alloys in Electrolytes with Basalt Mineral Powder Additions

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