In-situ formation of tribofilm with Ti3C2Tx MXene nanoflakes triggers macroscale superlubricity

Shuang Yi; Jinjin Li; Yanfei Liu; Xiangyu Ge; Jie Zhang; Jianbin Luo

doi:10.1016/j.triboint.2020.106695

In-situ formation of tribofilm with Ti₃C₂T_x MXene nanoflakes triggers macroscale superlubricity

Shuang Yi, Jinjin Li^*, Yanfei Liu, Xiangyu Ge, Jie Zhang, Jianbin Luo

^*Corresponding author for this work

School of Mechanical Engineering

Tsinghua University

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

104 Citations (Scopus)

Abstract

In the present work, a robust macroscale superlubricity state was achieved with a coefficient of friction (COF) of 0.002 by introducing Ti₃C₂T_x MXene nanoflakes in glycerol at Si₃N₄/sapphire interfaces. The MXene-glycerol solution results in the reduction of COF by 96.90% and 97.87% compared to those of pristine glycerol and Ti₃C₂T_x MXene solutions, respectively. The friction reduction of MXene-glycerol is attributed to the in-situ formation of tribofilm containing Ti₃C₂T_x MXene nanoflakes and tribochemical layer with Ti₃C₂T_x MXene on friction pairs, leading to the reduction of shear stress and wear between surface asperities. The synergistic effect between Ti₃C₂T_x MXene and glycerol enhanced the lubrication performance of Ti₃C₂T_x MXene, triggering liquid-superlubricity at the macroscale.

Original language	English
Article number	106695
Journal	Tribology International
Volume	154
DOIs	https://doi.org/10.1016/j.triboint.2020.106695
Publication status	Published - Feb 2021

Keywords

Friction
Superlubricity
TiCT MXene
Tribofilm

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Yi, S., Li, J., Liu, Y., Ge, X., Zhang, J., & Luo, J. (2021). In-situ formation of tribofilm with Ti₃C₂T_x MXene nanoflakes triggers macroscale superlubricity. Tribology International, 154, Article 106695. https://doi.org/10.1016/j.triboint.2020.106695

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title = "In-situ formation of tribofilm with Ti3C2Tx MXene nanoflakes triggers macroscale superlubricity",

abstract = "In the present work, a robust macroscale superlubricity state was achieved with a coefficient of friction (COF) of 0.002 by introducing Ti3C2Tx MXene nanoflakes in glycerol at Si3N4/sapphire interfaces. The MXene-glycerol solution results in the reduction of COF by 96.90% and 97.87% compared to those of pristine glycerol and Ti3C2Tx MXene solutions, respectively. The friction reduction of MXene-glycerol is attributed to the in-situ formation of tribofilm containing Ti3C2Tx MXene nanoflakes and tribochemical layer with Ti3C2Tx MXene on friction pairs, leading to the reduction of shear stress and wear between surface asperities. The synergistic effect between Ti3C2Tx MXene and glycerol enhanced the lubrication performance of Ti3C2Tx MXene, triggering liquid-superlubricity at the macroscale.",

keywords = "Friction, Superlubricity, TiCT MXene, Tribofilm",

author = "Shuang Yi and Jinjin Li and Yanfei Liu and Xiangyu Ge and Jie Zhang and Jianbin Luo",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd",

year = "2021",

month = feb,

doi = "10.1016/j.triboint.2020.106695",

language = "English",

volume = "154",

journal = "Tribology International",

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T1 - In-situ formation of tribofilm with Ti3C2Tx MXene nanoflakes triggers macroscale superlubricity

AU - Yi, Shuang

AU - Li, Jinjin

AU - Liu, Yanfei

AU - Ge, Xiangyu

AU - Zhang, Jie

AU - Luo, Jianbin

PY - 2021/2

Y1 - 2021/2

N2 - In the present work, a robust macroscale superlubricity state was achieved with a coefficient of friction (COF) of 0.002 by introducing Ti3C2Tx MXene nanoflakes in glycerol at Si3N4/sapphire interfaces. The MXene-glycerol solution results in the reduction of COF by 96.90% and 97.87% compared to those of pristine glycerol and Ti3C2Tx MXene solutions, respectively. The friction reduction of MXene-glycerol is attributed to the in-situ formation of tribofilm containing Ti3C2Tx MXene nanoflakes and tribochemical layer with Ti3C2Tx MXene on friction pairs, leading to the reduction of shear stress and wear between surface asperities. The synergistic effect between Ti3C2Tx MXene and glycerol enhanced the lubrication performance of Ti3C2Tx MXene, triggering liquid-superlubricity at the macroscale.

AB - In the present work, a robust macroscale superlubricity state was achieved with a coefficient of friction (COF) of 0.002 by introducing Ti3C2Tx MXene nanoflakes in glycerol at Si3N4/sapphire interfaces. The MXene-glycerol solution results in the reduction of COF by 96.90% and 97.87% compared to those of pristine glycerol and Ti3C2Tx MXene solutions, respectively. The friction reduction of MXene-glycerol is attributed to the in-situ formation of tribofilm containing Ti3C2Tx MXene nanoflakes and tribochemical layer with Ti3C2Tx MXene on friction pairs, leading to the reduction of shear stress and wear between surface asperities. The synergistic effect between Ti3C2Tx MXene and glycerol enhanced the lubrication performance of Ti3C2Tx MXene, triggering liquid-superlubricity at the macroscale.

KW - Friction

KW - Superlubricity

KW - TiCT MXene

KW - Tribofilm

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DO - 10.1016/j.triboint.2020.106695

M3 - Article

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SN - 0301-679X

VL - 154

JO - Tribology International

JF - Tribology International

M1 - 106695

ER -

In-situ formation of tribofilm with Ti₃C₂T_x MXene nanoflakes triggers macroscale superlubricity

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