Author/Authors :
Gayathri، نويسنده , , S. and Kumar، نويسنده , , N. Nambi Krishnan، نويسنده , , R. and Ravindran، نويسنده , , T.R. and Dash، نويسنده , , S. and Tyagi، نويسنده , , A.K. and Raj، نويسنده , , Baldev and Sridharan، نويسنده , , M.، نويسنده ,
Abstract :
Tribological and scratch resistance properties of pulsed laser deposited Diamond-Like Carbon (DLC) coatings with transition metal interlayers (TM=Cr, Ag, Ti and Ni) are studied. Remarkably high scratch resistance property is found when DLC is deposited with Ni and Ti transition metal interlayer. Transformation of I(D)/I(G) ratio from a higher value on the surface to a lower value in the wear track of DLC indicates formation of graphitized/amorphized tribofilm during sliding. These tribofilms and formation of carbonaceous transfer layer is a characteristic of easy in-plane sliding which provides low friction coefficient for the system of DLC/Ni and DLC/Ti multilayer.
Keywords :
Diamond-like carbon , Nanoindentation , Tribology , Raman spectroscopy
