Tribological Behavior of DLC and WDLC Carbon Based Coatings During Reciprocating Wear Tests Polytechnic School of University of SãoPaulo

Format:

Conference/Event

Author/Creator:

Bernardes, Bernardes, author.

Contributor:

Fukumasu, N.K.

Machado, G.A.A.

Machado, I.F.

Conference Name:

26th SAE BRASIL Inernational Congress and Display (2017-11-07 : Sao Paulo, Brazil)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2017

Summary:

AbstractCarbon-based coatings are used in several industrial applications, usually to promote improved wear and friction behaviors. In this work, two carbons based coatings are analyzed: a non-doped amorphous Diamond Like Carbon (DLC), produced by a Plasma-Enhanced Chemical Vapor Deposition (PECVD) process, and a Tungsten doped DLC (W-DLC), produced by a Physical Vapor Deposition (PVD) process. Mechanical properties (hardness and modulus of elasticity) are measured by nanoindentation technique using the Hysitron TI950 triboindenter, while the tribological aspects of the coatings (wear behavior and coefficient of friction) are evaluated by reciprocating motion tests on an Optimol SRV v4 tribometer. The DLC presented higher indentation hardness and modulus of elasticity when compared to the W-DLC. Results also indicate that the DLC shows lower coefficient of friction and higher critical loads to present coating delamination when compared with W-DLC

Notes:

Vendor supplied data

Publisher Number:

2017-36-0254

Access Restriction:

Restricted for use by site license