Tribological properties of solid lubricants (graphite, Sb2S3, MoS2) for automotive brake friction materials

Min Hyung Cho; Jeong Ju; Seong Jin Kim; Ho Jang

doi:10.1016/j.wear.2005.04.003

Tribological properties of solid lubricants (graphite, Sb₂S₃, MoS₂) for automotive brake friction materials

Min Hyung Cho, Jeong Ju, Seong Jin Kim, Ho Jang

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

215 Citations (Scopus)

Abstract

The effect of three different solid lubricants (graphite, Sb₂S₃, and MoS₂) in the brake friction material on various aspects of friction characteristics was investigated. Three friction material specimens were produced based on an experimental formulation, and they contained 10 vol.% graphite, 7 vol.% graphite + 3 vol.% Sb₂S₃, and 7 vol.% graphite + 3 vol.% MoS₂, respectively, fixing the composition of other ingredients. Tribological properties of the friction materials were obtained using a brake dynamometer. Results showed that the friction materials containing Sb₂S₃ and graphite improved friction stability and fade resistance. The friction materials with Sb₂S₃ and MoS₂, on the other hand, exhibited disadvantages in terms of wear resistance, anti-fading, and DTV (disk thickness variation) generation.

Original language	English
Pages (from-to)	855-860
Number of pages	6
Journal	Wear
Volume	260
Issue number	7-8
DOIs	https://doi.org/10.1016/j.wear.2005.04.003
Publication status	Published - 2006 Apr 7

Keywords

Brake
Disk thickness variation
Fade
Friction materials
Friction stability
Solid lubricant
Wear

ASJC Scopus subject areas

Condensed Matter Physics
Mechanics of Materials
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

Access to Document

10.1016/j.wear.2005.04.003

Cite this

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title = "Tribological properties of solid lubricants (graphite, Sb2S3, MoS2) for automotive brake friction materials",

abstract = "The effect of three different solid lubricants (graphite, Sb2S3, and MoS2) in the brake friction material on various aspects of friction characteristics was investigated. Three friction material specimens were produced based on an experimental formulation, and they contained 10 vol.% graphite, 7 vol.% graphite + 3 vol.% Sb2S3, and 7 vol.% graphite + 3 vol.% MoS2, respectively, fixing the composition of other ingredients. Tribological properties of the friction materials were obtained using a brake dynamometer. Results showed that the friction materials containing Sb2S3 and graphite improved friction stability and fade resistance. The friction materials with Sb2S3 and MoS2, on the other hand, exhibited disadvantages in terms of wear resistance, anti-fading, and DTV (disk thickness variation) generation.",

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AU - Cho, Min Hyung

AU - Ju, Jeong

AU - Kim, Seong Jin

AU - Jang, Ho

PY - 2006/4/7

Y1 - 2006/4/7

N2 - The effect of three different solid lubricants (graphite, Sb2S3, and MoS2) in the brake friction material on various aspects of friction characteristics was investigated. Three friction material specimens were produced based on an experimental formulation, and they contained 10 vol.% graphite, 7 vol.% graphite + 3 vol.% Sb2S3, and 7 vol.% graphite + 3 vol.% MoS2, respectively, fixing the composition of other ingredients. Tribological properties of the friction materials were obtained using a brake dynamometer. Results showed that the friction materials containing Sb2S3 and graphite improved friction stability and fade resistance. The friction materials with Sb2S3 and MoS2, on the other hand, exhibited disadvantages in terms of wear resistance, anti-fading, and DTV (disk thickness variation) generation.

AB - The effect of three different solid lubricants (graphite, Sb2S3, and MoS2) in the brake friction material on various aspects of friction characteristics was investigated. Three friction material specimens were produced based on an experimental formulation, and they contained 10 vol.% graphite, 7 vol.% graphite + 3 vol.% Sb2S3, and 7 vol.% graphite + 3 vol.% MoS2, respectively, fixing the composition of other ingredients. Tribological properties of the friction materials were obtained using a brake dynamometer. Results showed that the friction materials containing Sb2S3 and graphite improved friction stability and fade resistance. The friction materials with Sb2S3 and MoS2, on the other hand, exhibited disadvantages in terms of wear resistance, anti-fading, and DTV (disk thickness variation) generation.

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KW - Disk thickness variation

KW - Fade

KW - Friction materials

KW - Friction stability

KW - Solid lubricant

KW - Wear

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