The effect of graphite addition on the mechanical and tribological properties of pitch-based granular carbon composites

Méndez, Ana; Santamarı́a, Ricardo; Granda, Marcos; Menéndez, Rosa

doi:10.1007/s10853-008-2641-y

Cited by 5 publications

(1 citation statement)

References 19 publications

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“…It is reported that the use of natural flake graphite together with artificial graphite has a great influence on the friction properties [6,7,8,9,10,11,12,13,14,15]. Carbon black [16] and graphite have the same lubricity, and the advantages of carbon black are reflected in its wide range of sources and low prices.…”

Section: Introductionmentioning

confidence: 99%

Effect of Lubricating Phase on Microstructure and Properties of Cu–Fe Friction Materials

Wang

2019

Materials

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Cu–Fe-based friction materials with flake graphite, granulated carbon black, and high-strength graphite as lubricating phase were prepared by the powder metallurgy method. The effects of different types and mass fraction of lubricating phase on the microstructure, mechanical properties, and tribological properties were investigated. The results show that when the mass fraction of granulated carbon black is 5 wt%, it is easy to form a good interface with the matrix, but the interface is prone to pores and cracks when its mass fraction is 10 wt%. The bending strength and compressive strength properties of the composites increased with increasing in the mass fraction of granulated carbon black and reached the maximum of 40 MPa and 70 MPa at 5 wt% granulated carbon black, after which bending strength and compressive strength all decreased. The friction coefficient and the wear loss of the materials initially decreased as the mass fraction of granulated carbon black increased and obtained minimum of 0.436 and 0.145 mm when the mass fraction of granulated carbon black was 5 wt%, then ascended. Compared with the sample with 5 wt% high-strength graphite as lubricating phase, the sample with 5 wt% granulated carbon black as lubricating phase had better sintering performance, mechanical properties, and tribological properties.

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Section: Introductionmentioning

confidence: 99%

Effect of Lubricating Phase on Microstructure and Properties of Cu–Fe Friction Materials

Wang

2019

Materials

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The effect of modification of matrix on densification efficiency of pitch based carbon composites

Mohammad

Ali

Amir

et al. 2010

J Coal Sci Eng China

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Using coal tar pitch as a matrix precursor to prepare carbon materials is widely used by impregnation/carbonization processing technology. Four different grades of coal tar pitch and a natural pitch were characterized in terms of carbon yield, density, viscosity, and fractionation with solvents, as well as by thermal analysis methods. The suitability of these commercially available matrices for densification of 3 dimensional carbon-carbon composites was examined. The theoretical results compared with experimental results. The highest density after impregnation was obtained using one of the coal tar pitches. The predicted results are in reasonable agreement with experiment data. The significance of this research is that a special heat treatment regime was conducted. The effects of modification temperature on the densification efficiency of composites were investigated and then structure and characteristics of the composites were determined by scanning electron microscopy (SEM), Transmission electron microscopy (TEM) and X-Ray Diffraction (XRD).

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New insights into the microstructure of the friction surface layer of C/C composites

Bao-ling

He²,

et al. 2011

Carbon

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The effect of graphite addition on the mechanical and tribological properties of pitch-based granular carbon composites

Cited by 5 publications

References 19 publications

Effect of Lubricating Phase on Microstructure and Properties of Cu–Fe Friction Materials

Effect of Lubricating Phase on Microstructure and Properties of Cu–Fe Friction Materials

The effect of modification of matrix on densification efficiency of pitch based carbon composites

New insights into the microstructure of the friction surface layer of C/C composites

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