3D-printed biomimetic surface structures with abnormal friction properties

Weifeng Yuan, Yao Yao, Leon M Keer, Youwei Jiao, Jiaxin Yu, Qunyang Li, Xi Qiao Feng

Research output: Contribution to journalArticle

Abstract

Our daily experiences suggest that friction would increase when a sliding interface is pressed harder. At the nanoscale, however, recent experiments showed that friction on chemically modified graphite can decrease with increasing normal load due to atomic interlayer delamination. In this paper, we report that, through rational design of surface components, the friction of a macroscopic surface can also counterintuitively decrease with increasing normal load, resulting in a so-called macroscopic negative friction coefficient. This unusual feature is enabled by the coupling of contact pressure and deformation of the microstructured surface, which is achieved via two distinct microscale architectures, referred to as ‘lollipop’ and inverted ‘Y’ structures respectively. This work offers a novel strategy for designing meta-surfaces that possess unusual tribological properties, which may eventually lead to revolutionary engineering applications.

Original languageEnglish (US)
Pages (from-to)46-52
Number of pages7
JournalExtreme Mechanics Letters
Volume26
DOIs
StatePublished - Jan 1 2019

Fingerprint

Biomimetics
Surface structure
Friction
Graphite
Delamination
Experiments

Keywords

  • 3D printing
  • Metamaterials
  • Negative friction coefficient
  • Surface roughness

ASJC Scopus subject areas

  • Bioengineering
  • Chemical Engineering (miscellaneous)
  • Engineering (miscellaneous)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Yuan, Weifeng ; Yao, Yao ; Keer, Leon M ; Jiao, Youwei ; Yu, Jiaxin ; Li, Qunyang ; Feng, Xi Qiao. / 3D-printed biomimetic surface structures with abnormal friction properties. In: Extreme Mechanics Letters. 2019 ; Vol. 26. pp. 46-52.
@article{acb599bb1e0340bfac6859a239f15e77,
title = "3D-printed biomimetic surface structures with abnormal friction properties",
abstract = "Our daily experiences suggest that friction would increase when a sliding interface is pressed harder. At the nanoscale, however, recent experiments showed that friction on chemically modified graphite can decrease with increasing normal load due to atomic interlayer delamination. In this paper, we report that, through rational design of surface components, the friction of a macroscopic surface can also counterintuitively decrease with increasing normal load, resulting in a so-called macroscopic negative friction coefficient. This unusual feature is enabled by the coupling of contact pressure and deformation of the microstructured surface, which is achieved via two distinct microscale architectures, referred to as ‘lollipop’ and inverted ‘Y’ structures respectively. This work offers a novel strategy for designing meta-surfaces that possess unusual tribological properties, which may eventually lead to revolutionary engineering applications.",
keywords = "3D printing, Metamaterials, Negative friction coefficient, Surface roughness",
author = "Weifeng Yuan and Yao Yao and Keer, {Leon M} and Youwei Jiao and Jiaxin Yu and Qunyang Li and Feng, {Xi Qiao}",
year = "2019",
month = "1",
day = "1",
doi = "10.1016/j.eml.2018.12.003",
language = "English (US)",
volume = "26",
pages = "46--52",
journal = "Extreme Mechanics Letters",
issn = "2352-4316",
publisher = "Elsevier Limited",

}

3D-printed biomimetic surface structures with abnormal friction properties. / Yuan, Weifeng; Yao, Yao; Keer, Leon M; Jiao, Youwei; Yu, Jiaxin; Li, Qunyang; Feng, Xi Qiao.

In: Extreme Mechanics Letters, Vol. 26, 01.01.2019, p. 46-52.

Research output: Contribution to journalArticle

TY - JOUR

T1 - 3D-printed biomimetic surface structures with abnormal friction properties

AU - Yuan, Weifeng

AU - Yao, Yao

AU - Keer, Leon M

AU - Jiao, Youwei

AU - Yu, Jiaxin

AU - Li, Qunyang

AU - Feng, Xi Qiao

PY - 2019/1/1

Y1 - 2019/1/1

N2 - Our daily experiences suggest that friction would increase when a sliding interface is pressed harder. At the nanoscale, however, recent experiments showed that friction on chemically modified graphite can decrease with increasing normal load due to atomic interlayer delamination. In this paper, we report that, through rational design of surface components, the friction of a macroscopic surface can also counterintuitively decrease with increasing normal load, resulting in a so-called macroscopic negative friction coefficient. This unusual feature is enabled by the coupling of contact pressure and deformation of the microstructured surface, which is achieved via two distinct microscale architectures, referred to as ‘lollipop’ and inverted ‘Y’ structures respectively. This work offers a novel strategy for designing meta-surfaces that possess unusual tribological properties, which may eventually lead to revolutionary engineering applications.

AB - Our daily experiences suggest that friction would increase when a sliding interface is pressed harder. At the nanoscale, however, recent experiments showed that friction on chemically modified graphite can decrease with increasing normal load due to atomic interlayer delamination. In this paper, we report that, through rational design of surface components, the friction of a macroscopic surface can also counterintuitively decrease with increasing normal load, resulting in a so-called macroscopic negative friction coefficient. This unusual feature is enabled by the coupling of contact pressure and deformation of the microstructured surface, which is achieved via two distinct microscale architectures, referred to as ‘lollipop’ and inverted ‘Y’ structures respectively. This work offers a novel strategy for designing meta-surfaces that possess unusual tribological properties, which may eventually lead to revolutionary engineering applications.

KW - 3D printing

KW - Metamaterials

KW - Negative friction coefficient

KW - Surface roughness

UR - http://www.scopus.com/inward/record.url?scp=85058652432&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85058652432&partnerID=8YFLogxK

U2 - 10.1016/j.eml.2018.12.003

DO - 10.1016/j.eml.2018.12.003

M3 - Article

VL - 26

SP - 46

EP - 52

JO - Extreme Mechanics Letters

JF - Extreme Mechanics Letters

SN - 2352-4316

ER -