In situ TEM studies of tribo-induced bonding modifications in near-frictionless carbon films

A. P. Merkle; A. Erdemir; O. L. Eryilmaz; J. A. Johnson; L. D. Marks

doi:10.1016/j.carbon.2009.08.036

In situ TEM studies of tribo-induced bonding modifications in near-frictionless carbon films

A. P. Merkle^*, A. Erdemir, O. L. Eryilmaz, J. A. Johnson, L. D. Marks

^*Corresponding author for this work

Materials Science and Engineering

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

58 Scopus citations

Abstract

Direct in situ TEM evidence is presented for a mechanically-induced increase in sp² bond content in the tribolayers formed on near-frictionless carbon (NFC) films. An in situ TEM nanomanipulation holder is used to perform sliding experiments between a nano-sized tungsten probe and electron transparent NFC samples. Electron energy loss spectra (EELS) were acquired between sliding events to show an incremental increase in the 1s-π peak, suggesting that a graphitization-like process occurs which can lead to a change in the tribological performance of a variety of hard carbon films. Presently, this behavior is only observed for one of the two varieties of NFC, while supporting TEM imaging evidence is in qualitative agreement with macroscopic friction and wear behavior.

Original language	English (US)
Pages (from-to)	587-591
Number of pages	5
Journal	Carbon
Volume	48
Issue number	3
DOIs	https://doi.org/10.1016/j.carbon.2009.08.036
State	Published - Mar 2010

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)

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@article{8eb9556aed2e427ea866a32bd2d8165f,

title = "In situ TEM studies of tribo-induced bonding modifications in near-frictionless carbon films",

abstract = "Direct in situ TEM evidence is presented for a mechanically-induced increase in sp2 bond content in the tribolayers formed on near-frictionless carbon (NFC) films. An in situ TEM nanomanipulation holder is used to perform sliding experiments between a nano-sized tungsten probe and electron transparent NFC samples. Electron energy loss spectra (EELS) were acquired between sliding events to show an incremental increase in the 1s-π peak, suggesting that a graphitization-like process occurs which can lead to a change in the tribological performance of a variety of hard carbon films. Presently, this behavior is only observed for one of the two varieties of NFC, while supporting TEM imaging evidence is in qualitative agreement with macroscopic friction and wear behavior.",

author = "Merkle, {A. P.} and A. Erdemir and Eryilmaz, {O. L.} and Johnson, {J. A.} and Marks, {L. D.}",

note = "Funding Information: This work was supported by the National Science Foundation on Grant No. DGE-0114429 , the Air Force Office of Scientific Research on Grant No. 49620-03-1-0092 , Office of Energy Efficiency and Renewable Energy, Freedom Car and Vehicle Technologies Program , under Contract No. DE-AC02-06CH11357 , and was carried out in the Electron Microscopy Center at Argonne National Laboratory, which is supported by the DOE Office of Science under Contract No. W-31-109-Eng-38 .",

year = "2010",

month = mar,

doi = "10.1016/j.carbon.2009.08.036",

language = "English (US)",

volume = "48",

pages = "587--591",

journal = "Carbon",

issn = "0008-6223",

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T1 - In situ TEM studies of tribo-induced bonding modifications in near-frictionless carbon films

AU - Merkle, A. P.

AU - Erdemir, A.

AU - Eryilmaz, O. L.

AU - Johnson, J. A.

AU - Marks, L. D.

N1 - Funding Information: This work was supported by the National Science Foundation on Grant No. DGE-0114429 , the Air Force Office of Scientific Research on Grant No. 49620-03-1-0092 , Office of Energy Efficiency and Renewable Energy, Freedom Car and Vehicle Technologies Program , under Contract No. DE-AC02-06CH11357 , and was carried out in the Electron Microscopy Center at Argonne National Laboratory, which is supported by the DOE Office of Science under Contract No. W-31-109-Eng-38 .

PY - 2010/3

Y1 - 2010/3

N2 - Direct in situ TEM evidence is presented for a mechanically-induced increase in sp2 bond content in the tribolayers formed on near-frictionless carbon (NFC) films. An in situ TEM nanomanipulation holder is used to perform sliding experiments between a nano-sized tungsten probe and electron transparent NFC samples. Electron energy loss spectra (EELS) were acquired between sliding events to show an incremental increase in the 1s-π peak, suggesting that a graphitization-like process occurs which can lead to a change in the tribological performance of a variety of hard carbon films. Presently, this behavior is only observed for one of the two varieties of NFC, while supporting TEM imaging evidence is in qualitative agreement with macroscopic friction and wear behavior.

AB - Direct in situ TEM evidence is presented for a mechanically-induced increase in sp2 bond content in the tribolayers formed on near-frictionless carbon (NFC) films. An in situ TEM nanomanipulation holder is used to perform sliding experiments between a nano-sized tungsten probe and electron transparent NFC samples. Electron energy loss spectra (EELS) were acquired between sliding events to show an incremental increase in the 1s-π peak, suggesting that a graphitization-like process occurs which can lead to a change in the tribological performance of a variety of hard carbon films. Presently, this behavior is only observed for one of the two varieties of NFC, while supporting TEM imaging evidence is in qualitative agreement with macroscopic friction and wear behavior.

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VL - 48

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JO - Carbon

JF - Carbon

SN - 0008-6223

IS - 3

ER -

In situ TEM studies of tribo-induced bonding modifications in near-frictionless carbon films

Abstract

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