Tribology and Micro-Chemistry of Sputter Deposited Composite Coatings on Honed Steel Substrates

The tribology and micro-chemistry of TiO(,2)-TiC composite coatings on chemically honed steel substrates has been investigated. The primary wear resistant coatings (TiC) were deposited by rf sputtering using a dc substrate bias and the solid lubricant coatings (TiO(,2)) were deposited in an Ar and O(,2) mixed rf glow discharge. Chemically honed steel substrates which consisted of a checkerboard of raised squares separated by 1.5 (mu)m deep channels were prepared by photolithographic and masking techniques. A pin-on-disc apparatus was used to measure friction and wear characteristics of composite coatings. The composite coating chemistry was analyized by Auger Electron Spectroscopy (AES); in addition, AES was used to characterize the wear transfer mechanism between steel and the composite coating.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Mechanical Engineering

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2014

Author dc:creator

• Wu, Lawrence Ching-Yu

• Engineering, Mechanical

Language dc:language

eng

Identifier

(UMI)AAI8018219

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/67024