Intrinsic self-lubricity of layered Ti3AlC2 under certain vacuum environment

Jiqiang Ma; Junying Hao; Licai Fu; Zhuhui Qiao; Jun Yang; Weimin Liu; Qinling Bi

doi:10.1016/j.wear.2012.10.015

Intrinsic self-lubricity of layered Ti₃AlC₂ under certain vacuum environment

Jiqiang Ma, Junying Hao, Licai Fu, Zhuhui Qiao, Jun Yang, Weimin Liu, Qinling Bi

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

27 Scopus citations

Abstract

In this study, we report that a layered Ti₃AlC₂ ceramic exhibited three distinct tribological behaviors at different vacuum degrees. It is firstly found that the layered Ti₃AlC₂ exhibited intrinsic self-lubricity under vacuum degree from 2.0×10⁴ to 5Pa with the coefficient of friction (CoF) as low as 0.2 and nearly no wear. Under lower 0.1Pa and air atmosphere, however, it showed lubrication failure. Under lower 0.1Pa, The CoF abruptly rose after transitory low friction in initial duration and deteriorated wear occurred in the Ti₃AlC₂. The CoF sluggishly ascended to stable value from 0.2 to 0.7 in air. The lubricating mechanism of Ti₃AlC₂ ceramic was proposed.

Original language	English
Pages (from-to)	824-828
Number of pages	5
Journal	Wear
Volume	297
Issue number	1-2
DOIs	https://doi.org/10.1016/j.wear.2012.10.015
State	Published - 15 Jan 2013
Externally published	Yes

Keywords

MAX phases
Sliding friction
Sliding wear
Solid lubricants
Vacuum

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10.1016/j.wear.2012.10.015

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title = "Intrinsic self-lubricity of layered Ti3AlC2 under certain vacuum environment",

abstract = "In this study, we report that a layered Ti3AlC2 ceramic exhibited three distinct tribological behaviors at different vacuum degrees. It is firstly found that the layered Ti3AlC2 exhibited intrinsic self-lubricity under vacuum degree from 2.0×104 to 5Pa with the coefficient of friction (CoF) as low as 0.2 and nearly no wear. Under lower 0.1Pa and air atmosphere, however, it showed lubrication failure. Under lower 0.1Pa, The CoF abruptly rose after transitory low friction in initial duration and deteriorated wear occurred in the Ti3AlC2. The CoF sluggishly ascended to stable value from 0.2 to 0.7 in air. The lubricating mechanism of Ti3AlC2 ceramic was proposed.",

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author = "Jiqiang Ma and Junying Hao and Licai Fu and Zhuhui Qiao and Jun Yang and Weimin Liu and Qinling Bi",

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T1 - Intrinsic self-lubricity of layered Ti3AlC2 under certain vacuum environment

AU - Ma, Jiqiang

AU - Hao, Junying

AU - Fu, Licai

AU - Qiao, Zhuhui

AU - Yang, Jun

AU - Liu, Weimin

AU - Bi, Qinling

PY - 2013/1/15

Y1 - 2013/1/15

N2 - In this study, we report that a layered Ti3AlC2 ceramic exhibited three distinct tribological behaviors at different vacuum degrees. It is firstly found that the layered Ti3AlC2 exhibited intrinsic self-lubricity under vacuum degree from 2.0×104 to 5Pa with the coefficient of friction (CoF) as low as 0.2 and nearly no wear. Under lower 0.1Pa and air atmosphere, however, it showed lubrication failure. Under lower 0.1Pa, The CoF abruptly rose after transitory low friction in initial duration and deteriorated wear occurred in the Ti3AlC2. The CoF sluggishly ascended to stable value from 0.2 to 0.7 in air. The lubricating mechanism of Ti3AlC2 ceramic was proposed.

AB - In this study, we report that a layered Ti3AlC2 ceramic exhibited three distinct tribological behaviors at different vacuum degrees. It is firstly found that the layered Ti3AlC2 exhibited intrinsic self-lubricity under vacuum degree from 2.0×104 to 5Pa with the coefficient of friction (CoF) as low as 0.2 and nearly no wear. Under lower 0.1Pa and air atmosphere, however, it showed lubrication failure. Under lower 0.1Pa, The CoF abruptly rose after transitory low friction in initial duration and deteriorated wear occurred in the Ti3AlC2. The CoF sluggishly ascended to stable value from 0.2 to 0.7 in air. The lubricating mechanism of Ti3AlC2 ceramic was proposed.

KW - MAX phases

KW - Sliding friction

KW - Sliding wear

KW - Solid lubricants

KW - Vacuum

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DO - 10.1016/j.wear.2012.10.015

M3 - 文章

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ER -

Intrinsic self-lubricity of layered Ti₃AlC₂ under certain vacuum environment

Abstract

Keywords

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