Graphene oxide in water lubrication on diamond-like carbon vs. stainless steel high-load contacts

Oskari Elomaa; Vivek K. Singh; Ajai Iyer; Timo J. Hakala; Jari Koskinen

doi:10.1016/j.diamond.2014.12.003

Graphene oxide in water lubrication on diamond-like carbon vs. stainless steel high-load contacts

Oskari Elomaa (Corresponding Author), Vivek K. Singh, Ajai Iyer, Timo J. Hakala, Jari Koskinen

Aalto University

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

107 Citations (Scopus)

Abstract

The friction and wear performance of 0-2 wt.% graphene oxide (GO) dispersions in water were studied on diamond-like carbon vs. stainless steel contact by a pin-on-disk tribometer. Thewear surfaceswere characterized using contact profilometry, X-ray spectroscopy, optical microscopy, scanning electron microscopy, energy dispersive spectroscopy, and Raman spectroscopy. The friction coefficient decreased 57% (from 0.14 to 0.06) compared to pure water, when 1 wt.% of GO and 10 N normal load were applied. A minimum wear for the counter ball was detected when pure water was used. GO additives reduced the corrosive effect on the counter ball. The main tribological mechanism of GO additives in water was observed to be the embedding of GO sheets on the counter ball surface forming a lubricating layer and binding water molecules into the contact.

Original language	English
Pages (from-to)	43-48
Journal	Diamond and Related Materials
Volume	52
DOIs	https://doi.org/10.1016/j.diamond.2014.12.003
Publication status	Published - 2015
MoE publication type	A1 Journal article-refereed

Keywords

Graphene oxide
Diamond-like carbon
Water lubrication
Friction
Wear

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10.1016/j.diamond.2014.12.003

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title = "Graphene oxide in water lubrication on diamond-like carbon vs. stainless steel high-load contacts",

abstract = "The friction and wear performance of 0-2 wt.% graphene oxide (GO) dispersions in water were studied on diamond-like carbon vs. stainless steel contact by a pin-on-disk tribometer. Thewear surfaceswere characterized using contact profilometry, X-ray spectroscopy, optical microscopy, scanning electron microscopy, energy dispersive spectroscopy, and Raman spectroscopy. The friction coefficient decreased 57% (from 0.14 to 0.06) compared to pure water, when 1 wt.% of GO and 10 N normal load were applied. A minimum wear for the counter ball was detected when pure water was used. GO additives reduced the corrosive effect on the counter ball. The main tribological mechanism of GO additives in water was observed to be the embedding of GO sheets on the counter ball surface forming a lubricating layer and binding water molecules into the contact.",

keywords = "Graphene oxide, Diamond-like carbon, Water lubrication, Friction, Wear",

author = "Oskari Elomaa and Singh, {Vivek K.} and Ajai Iyer and Hakala, {Timo J.} and Jari Koskinen",

year = "2015",

doi = "10.1016/j.diamond.2014.12.003",

language = "English",

volume = "52",

pages = "43--48",

journal = "Diamond and Related Materials",

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TY - JOUR

T1 - Graphene oxide in water lubrication on diamond-like carbon vs. stainless steel high-load contacts

AU - Elomaa, Oskari

AU - Singh, Vivek K.

AU - Iyer, Ajai

AU - Hakala, Timo J.

AU - Koskinen, Jari

PY - 2015

Y1 - 2015

N2 - The friction and wear performance of 0-2 wt.% graphene oxide (GO) dispersions in water were studied on diamond-like carbon vs. stainless steel contact by a pin-on-disk tribometer. Thewear surfaceswere characterized using contact profilometry, X-ray spectroscopy, optical microscopy, scanning electron microscopy, energy dispersive spectroscopy, and Raman spectroscopy. The friction coefficient decreased 57% (from 0.14 to 0.06) compared to pure water, when 1 wt.% of GO and 10 N normal load were applied. A minimum wear for the counter ball was detected when pure water was used. GO additives reduced the corrosive effect on the counter ball. The main tribological mechanism of GO additives in water was observed to be the embedding of GO sheets on the counter ball surface forming a lubricating layer and binding water molecules into the contact.

AB - The friction and wear performance of 0-2 wt.% graphene oxide (GO) dispersions in water were studied on diamond-like carbon vs. stainless steel contact by a pin-on-disk tribometer. Thewear surfaceswere characterized using contact profilometry, X-ray spectroscopy, optical microscopy, scanning electron microscopy, energy dispersive spectroscopy, and Raman spectroscopy. The friction coefficient decreased 57% (from 0.14 to 0.06) compared to pure water, when 1 wt.% of GO and 10 N normal load were applied. A minimum wear for the counter ball was detected when pure water was used. GO additives reduced the corrosive effect on the counter ball. The main tribological mechanism of GO additives in water was observed to be the embedding of GO sheets on the counter ball surface forming a lubricating layer and binding water molecules into the contact.

KW - Graphene oxide

KW - Diamond-like carbon

KW - Water lubrication

KW - Friction

KW - Wear

U2 - 10.1016/j.diamond.2014.12.003

DO - 10.1016/j.diamond.2014.12.003

M3 - Article

SN - 0925-9635

VL - 52

SP - 43

EP - 48

JO - Diamond and Related Materials

JF - Diamond and Related Materials

ER -

Graphene oxide in water lubrication on diamond-like carbon vs. stainless steel high-load contacts

Abstract

Keywords

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