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

被引：0

作者：

Kumar, N. ^{[1
]}

Dash, S. ^{[1
]}

Kamruddin, M. ^{[1
]}

Das, C. R. ^{[2
]}

Chandramohan, P. ^{[3
]}

Srinivasan, M. P. ^{[3
]}

Tyagi, A. K. ^{[1
]}

Raj, B. ^{[4
]}

机构：

[1] IGCAR, Surface & Nanosci Div, Kalpakkam 603102, Tamil Nadu, India

[2] IGCAR, Mat Technol Div, Kalpakkam 603102, Tamil Nadu, India

[3] BARCF, Water & Steam Chem Div, Kalpakkam 603102, Tamil Nadu, India

[4] IGCAR, Kalpakkam 603102, Tamil Nadu, India

来源：

TRIBOLOGY-MATERIALS SURFACES & INTERFACES | 2011年 / 5卷 / 04期

关键词：

TiC/a-C; Composite coatings; Friction; Wear;

D O I：

10.1179/1751584X11Y.0000000019

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Gas phase carburisation of titanium in CH4 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.

引用

页码：172 / 176

页数：5

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