Synthesis of carbon films with ultra-low friction in dry and humid air

Christina A. Freyman; Yanfeng Chen; Yip Wah Chung

doi:10.1016/j.surfcoat.2005.11.075

Synthesis of carbon films with ultra-low friction in dry and humid air

Christina A. Freyman, Yanfeng Chen, Yip Wah Chung^*

^*Corresponding author for this work

Materials Science and Engineering

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

42 Scopus citations

Abstract

Using pulsed dc magnetron sputtering, we synthesized hydrogenated amorphous carbon films with and without sulfur doping. These films were smooth and amorphous, with low compressive stress (< 1 GPa). Auger electron spectroscopy confirmed the incorporation of sulfur, and X-ray photoelectron spectroscopy showed that sulfur atoms are chemically bound. Most significant, ball-on-flat tribo-testing showed that hydrogenated carbon films doped with 5 at.% sulfur have ultra-low friction coefficients (< 0.01) in air with relative humidity from 0% to 50%.

Original language	English (US)
Pages (from-to)	164-167
Number of pages	4
Journal	Surface and Coatings Technology
Volume	201
Issue number	1-2
DOIs	https://doi.org/10.1016/j.surfcoat.2005.11.075
State	Published - Sep 12 2006

Funding

We gratefully acknowledge many fruitful discussions with Kathy Wahl, Nick Wu, Ray Twesten, and especially Ali Erdemir for his critique of the manuscript. This work was supported by NSF IGERT Grant #DGE-0114429/007. TEM studies were carried out in the Center for Microanalysis of Materials, University of Illinois, which is partially supported by the U.S. Department of Energy under grant DEFG02-91-ER45439. XPS work was carried out at the Keck-II Facility of Northwestern University.

Keywords

Friction
Hydrogenated carbon films
Magnetron sputtering
Sulfur doping

ASJC Scopus subject areas

General Chemistry
Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

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10.1016/j.surfcoat.2005.11.075

Cite this

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title = "Synthesis of carbon films with ultra-low friction in dry and humid air",

abstract = "Using pulsed dc magnetron sputtering, we synthesized hydrogenated amorphous carbon films with and without sulfur doping. These films were smooth and amorphous, with low compressive stress (< 1 GPa). Auger electron spectroscopy confirmed the incorporation of sulfur, and X-ray photoelectron spectroscopy showed that sulfur atoms are chemically bound. Most significant, ball-on-flat tribo-testing showed that hydrogenated carbon films doped with 5 at.% sulfur have ultra-low friction coefficients (< 0.01) in air with relative humidity from 0% to 50%.",

keywords = "Friction, Hydrogenated carbon films, Magnetron sputtering, Sulfur doping",

author = "Freyman, {Christina A.} and Yanfeng Chen and Chung, {Yip Wah}",

note = "Funding Information: We gratefully acknowledge many fruitful discussions with Kathy Wahl, Nick Wu, Ray Twesten, and especially Ali Erdemir for his critique of the manuscript. This work was supported by NSF IGERT Grant #DGE-0114429/007. TEM studies were carried out in the Center for Microanalysis of Materials, University of Illinois, which is partially supported by the U.S. Department of Energy under grant DEFG02-91-ER45439. XPS work was carried out at the Keck-II Facility of Northwestern University.",

year = "2006",

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doi = "10.1016/j.surfcoat.2005.11.075",

language = "English (US)",

volume = "201",

pages = "164--167",

journal = "Surface and Coatings Technology",

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TY - JOUR

T1 - Synthesis of carbon films with ultra-low friction in dry and humid air

AU - Freyman, Christina A.

AU - Chen, Yanfeng

AU - Chung, Yip Wah

N1 - Funding Information: We gratefully acknowledge many fruitful discussions with Kathy Wahl, Nick Wu, Ray Twesten, and especially Ali Erdemir for his critique of the manuscript. This work was supported by NSF IGERT Grant #DGE-0114429/007. TEM studies were carried out in the Center for Microanalysis of Materials, University of Illinois, which is partially supported by the U.S. Department of Energy under grant DEFG02-91-ER45439. XPS work was carried out at the Keck-II Facility of Northwestern University.

PY - 2006/9/12

Y1 - 2006/9/12

N2 - Using pulsed dc magnetron sputtering, we synthesized hydrogenated amorphous carbon films with and without sulfur doping. These films were smooth and amorphous, with low compressive stress (< 1 GPa). Auger electron spectroscopy confirmed the incorporation of sulfur, and X-ray photoelectron spectroscopy showed that sulfur atoms are chemically bound. Most significant, ball-on-flat tribo-testing showed that hydrogenated carbon films doped with 5 at.% sulfur have ultra-low friction coefficients (< 0.01) in air with relative humidity from 0% to 50%.

AB - Using pulsed dc magnetron sputtering, we synthesized hydrogenated amorphous carbon films with and without sulfur doping. These films were smooth and amorphous, with low compressive stress (< 1 GPa). Auger electron spectroscopy confirmed the incorporation of sulfur, and X-ray photoelectron spectroscopy showed that sulfur atoms are chemically bound. Most significant, ball-on-flat tribo-testing showed that hydrogenated carbon films doped with 5 at.% sulfur have ultra-low friction coefficients (< 0.01) in air with relative humidity from 0% to 50%.

KW - Friction

KW - Hydrogenated carbon films

KW - Magnetron sputtering

KW - Sulfur doping

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VL - 201

SP - 164

EP - 167

JO - Surface and Coatings Technology

JF - Surface and Coatings Technology

IS - 1-2

ER -

Synthesis of carbon films with ultra-low friction in dry and humid air

Abstract

Funding

Keywords

ASJC Scopus subject areas

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