Investigation on braking performance and wear mechanism of full-carbon/ceramic braking pairs

Xu Ma; Shangwu Fan; Haodong Sun; Chenghua Luan; Juanli Deng; Litong Zhang; Laifei Cheng

doi:10.1016/j.triboint.2019.105981

Investigation on braking performance and wear mechanism of full-carbon/ceramic braking pairs

Xu Ma, Shangwu Fan, Haodong Sun, Chenghua Luan, Juanli Deng, Litong Zhang, Laifei Cheng

School of Materials Sience and Engineering

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

47 Scopus citations

Abstract

In this work, the braking performance of full-carbon/ceramic pairs that are suitable for high-speed trains and automobiles was examined. After braking, the morphologies of the friction surface were observed via SEM and the sub-surface of the brake pads were characterized by FIB and TEM. According to the results, introducing a ductile phase like FeSi₂ into the brake pads was beneficial for decreasing the coefficient of friction (COF) to an acceptable range and effectively improved the wear resistance. When braking under high pressure, the friction surface of the FeSi₂ modified C/C–SiC pads were maintained while that of the virgin C/C–SiC pads were totally destroyed, the wear resistance of the former was up to an order of magnitude higher than the latter.

Original language	English
Article number	105981
Journal	Tribology International
Volume	142
DOIs	https://doi.org/10.1016/j.triboint.2019.105981
State	Published - Feb 2020

Keywords

Brake
Friction coefficient
Full-carbon/ceramic pair
Wear rate

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10.1016/j.triboint.2019.105981

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title = "Investigation on braking performance and wear mechanism of full-carbon/ceramic braking pairs",

abstract = "In this work, the braking performance of full-carbon/ceramic pairs that are suitable for high-speed trains and automobiles was examined. After braking, the morphologies of the friction surface were observed via SEM and the sub-surface of the brake pads were characterized by FIB and TEM. According to the results, introducing a ductile phase like FeSi2 into the brake pads was beneficial for decreasing the coefficient of friction (COF) to an acceptable range and effectively improved the wear resistance. When braking under high pressure, the friction surface of the FeSi2 modified C/C–SiC pads were maintained while that of the virgin C/C–SiC pads were totally destroyed, the wear resistance of the former was up to an order of magnitude higher than the latter.",

keywords = "Brake, Friction coefficient, Full-carbon/ceramic pair, Wear rate",

author = "Xu Ma and Shangwu Fan and Haodong Sun and Chenghua Luan and Juanli Deng and Litong Zhang and Laifei Cheng",

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TY - JOUR

T1 - Investigation on braking performance and wear mechanism of full-carbon/ceramic braking pairs

AU - Ma, Xu

AU - Fan, Shangwu

AU - Sun, Haodong

AU - Luan, Chenghua

AU - Deng, Juanli

AU - Zhang, Litong

AU - Cheng, Laifei

PY - 2020/2

Y1 - 2020/2

N2 - In this work, the braking performance of full-carbon/ceramic pairs that are suitable for high-speed trains and automobiles was examined. After braking, the morphologies of the friction surface were observed via SEM and the sub-surface of the brake pads were characterized by FIB and TEM. According to the results, introducing a ductile phase like FeSi2 into the brake pads was beneficial for decreasing the coefficient of friction (COF) to an acceptable range and effectively improved the wear resistance. When braking under high pressure, the friction surface of the FeSi2 modified C/C–SiC pads were maintained while that of the virgin C/C–SiC pads were totally destroyed, the wear resistance of the former was up to an order of magnitude higher than the latter.

AB - In this work, the braking performance of full-carbon/ceramic pairs that are suitable for high-speed trains and automobiles was examined. After braking, the morphologies of the friction surface were observed via SEM and the sub-surface of the brake pads were characterized by FIB and TEM. According to the results, introducing a ductile phase like FeSi2 into the brake pads was beneficial for decreasing the coefficient of friction (COF) to an acceptable range and effectively improved the wear resistance. When braking under high pressure, the friction surface of the FeSi2 modified C/C–SiC pads were maintained while that of the virgin C/C–SiC pads were totally destroyed, the wear resistance of the former was up to an order of magnitude higher than the latter.

KW - Brake

KW - Friction coefficient

KW - Full-carbon/ceramic pair

KW - Wear rate

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U2 - 10.1016/j.triboint.2019.105981

DO - 10.1016/j.triboint.2019.105981

M3 - 文章

AN - SCOPUS:85072666988

SN - 0301-679X

VL - 142

JO - Tribology International

JF - Tribology International

M1 - 105981

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Investigation on braking performance and wear mechanism of full-carbon/ceramic braking pairs

Abstract

Keywords

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