The effect of sliding speed and normal load on the friction and wear behavior of TiO2 thin films
Journal Title: Journal of New technology and Materials - Year 2018, Vol 8, Issue 2
Abstract
The tribological behavior of TiO2 thin films was investigated against test parameters. The friction coefficient under different normal loads, sliding speeds, and numbers of cycles was studied using a micro-scratch tester. The surface morphology of the EPD layers was observed using atomic force microscopy (AFM), the composition of the EPD layer was determined from the peak intensity using an X-ray diffractometer (XRD) and mechanical properties of films was investigated by nanoindentation technique. The results showed that varying normal load or sliding speed influences the friction coefficient, the wear volume and the wear specific coefficient. It was found, also, that a change in the wear behavior occurs when a critical value of normal load is exceeded. In fact, at low normal load (Fn < 1 N), the stable friction leads to an insignificant wear. Moreover, for Fn > 1 N, the friction decrease is induced by wear particles. The analysis developed in this paper confirms a good wear resistance of the TiO2 coatings.
Authors and Affiliations
Hafedh Dhiflaoui, Kaouther Khlifi, Ahmed Ben Cheikh Larbi
Keywords
Related Articles
- EP ID EP449613
- DOI -
- Views 65
- Downloads 0
Study of PVDF/PMMA blend resistance to artificial aging and neutral spray
The resistance of poly (vinylidene fluoride)/poly (methyl methacrylate) (PVDF/PMMA) blends was investigated using the artificial aging and neutral salt spray tests. The solution of each polymer was prepared using the N,...
Quartz sand beneficiation using magnetic and electrostatic separation to glass industries
Quartz sand of Fortuna formation was assigned to the Oligo-Miocene. This formation outcrops in Central Tunisia, particularly in the Ain Bou Morra area. The grain particle size ranges from fine to medium. The morphoscopic...
First-principles calculation of defects structure in b2 NiTi
First-principles electronic structure calculations have been performed for defect structure in non-stoichiometric B2 NiTi. In order to determine the type of constitutional defects, the compositional dependence curves bot...
Enhancement of characteristics of a functionalized oligophenylene by acid hydrolysis modification
New modified oligophenylene was prepared by acid hydrolysis of a functionalized oligophenylene (OMPA).The latter was obtained by (4-methoxy phenyl) acetonitrile electrochemical oxidation. The resulting modified oligomer...
Synthesis, spectral studies and antimicrobial activity of a new hexahydrotriazine compound
An unsymmetrical original structure of 1.3- bis( 2-bromophenyl)-5-isopropyl-1.3.5-Triazacyclohexane was synthesized via a long one-step mixed condensation reaction of 2:1stoichiometric ratio, 2-bromoaniline and isopro...