Influence of TiC/a-C phase on tribological properties of composite coatings

N. Kumar; S. Dash; M. Kamruddin; C. R.  Das; P. Chandramohan; M. P. Srinivasan; A. K. Tyagi; B. Raj

doi:10.1179/1751584X11Y.0000000019

Influence of TiC/a-C phase on tribological properties of composite coatings

N. Kumar, S. Dash, M. Kamruddin, C. R. Das, P. Chandramohan, M. P. Srinivasan, A. K. Tyagi, B. Raj

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

Gas phase carburisation of titanium in CH 4 atmosphere was carried out in a thermogravimetric analyser. The analysis revealed the formation of TiC phase embedded in an amorphous carbon (a-C) matrix. Raman scattering investigation revealed the evolution of two separate peaks corresponding to D and G band vibrational modes in a hexagonal sp 2 phase of the graphite-like structure. The tribological properties of this coating relied significantly on the relative extent of D and G band modes with the evolution of TiC phase. A sharp transition of friction from lower to higher value was observed due to the wearing out of tribolubricant phases of TiC with disordered graphite-like structure present in the a-C matrix. In case of thicker coating, a lower regime of friction was observed with longer wear distances. © 2011 W. S. Maney & Son Ltd.

Original language	English
Journal	Tribology - Materials, Surfaces & Interfaces
Volume	5
Issue number	4
Pages (from-to)	172-176
ISSN	1751-5831
DOIs	https://doi.org/10.1179/1751584X11Y.0000000019
Publication status	Published - 2011
Externally published	Yes

Keywords

Composite coatings
Friction
TiC/a-C
Wear

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10.1179/1751584X11Y.0000000019

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title = "Influence of TiC/a-C phase on tribological properties of composite coatings",

abstract = "Gas phase carburisation of titanium in CH 4 atmosphere was carried out in a thermogravimetric analyser. The analysis revealed the formation of TiC phase embedded in an amorphous carbon (a-C) matrix. Raman scattering investigation revealed the evolution of two separate peaks corresponding to D and G band vibrational modes in a hexagonal sp 2 phase of the graphite-like structure. The tribological properties of this coating relied significantly on the relative extent of D and G band modes with the evolution of TiC phase. A sharp transition of friction from lower to higher value was observed due to the wearing out of tribolubricant phases of TiC with disordered graphite-like structure present in the a-C matrix. In case of thicker coating, a lower regime of friction was observed with longer wear distances. {\textcopyright} 2011 W. S. Maney & Son Ltd.",

keywords = "Composite coatings, Friction, TiC/a-C, Wear",

author = "N. Kumar and S. Dash and M. Kamruddin and Das, {C. R.} and P. Chandramohan and Srinivasan, {M. P.} and Tyagi, {A. K.} and B. Raj",

year = "2011",

doi = "10.1179/1751584X11Y.0000000019",

language = "English",

volume = "5",

pages = "172--176",

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TY - JOUR

T1 - Influence of TiC/a-C phase on tribological properties of composite coatings

AU - Kumar, N.

AU - Dash, S.

AU - Kamruddin, M.

AU - Das, C. R.

AU - Chandramohan, P.

AU - Srinivasan, M. P.

AU - Tyagi, A. K.

AU - Raj, B.

PY - 2011

Y1 - 2011

N2 - Gas phase carburisation of titanium in CH 4 atmosphere was carried out in a thermogravimetric analyser. The analysis revealed the formation of TiC phase embedded in an amorphous carbon (a-C) matrix. Raman scattering investigation revealed the evolution of two separate peaks corresponding to D and G band vibrational modes in a hexagonal sp 2 phase of the graphite-like structure. The tribological properties of this coating relied significantly on the relative extent of D and G band modes with the evolution of TiC phase. A sharp transition of friction from lower to higher value was observed due to the wearing out of tribolubricant phases of TiC with disordered graphite-like structure present in the a-C matrix. In case of thicker coating, a lower regime of friction was observed with longer wear distances. © 2011 W. S. Maney & Son Ltd.

AB - Gas phase carburisation of titanium in CH 4 atmosphere was carried out in a thermogravimetric analyser. The analysis revealed the formation of TiC phase embedded in an amorphous carbon (a-C) matrix. Raman scattering investigation revealed the evolution of two separate peaks corresponding to D and G band vibrational modes in a hexagonal sp 2 phase of the graphite-like structure. The tribological properties of this coating relied significantly on the relative extent of D and G band modes with the evolution of TiC phase. A sharp transition of friction from lower to higher value was observed due to the wearing out of tribolubricant phases of TiC with disordered graphite-like structure present in the a-C matrix. In case of thicker coating, a lower regime of friction was observed with longer wear distances. © 2011 W. S. Maney & Son Ltd.

KW - Composite coatings

KW - Friction

KW - TiC/a-C

KW - Wear

U2 - 10.1179/1751584X11Y.0000000019

DO - 10.1179/1751584X11Y.0000000019

M3 - Journal article

SN - 1751-5831

VL - 5

SP - 172

EP - 176

JO - Tribology - Materials, Surfaces & Interfaces

JF - Tribology - Materials, Surfaces & Interfaces

IS - 4

ER -

Influence of TiC/a-C phase on tribological properties of composite coatings

Abstract

Keywords

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