Sliding wear of TiO2 sol - gel coating

Grilec, Krešimir and Ćurković, Lidija and Majić Renjo, Marijana and Jakovljević, Suzana and Rede, Vera (2014) Sliding wear of TiO2 sol - gel coating. = Sliding wear of TiO2 sol - gel coating. In: 18th international research/expert conference "Trends in the development of machinery and associated technology" TMT 2014, 10.-12.09.2014., Budimpešta, Mađarska.

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Nanostructured titanium dioxide (TiO2) coatings are interesting due to their good properties, such as high hardness, chemical stability, wear and oxidation resistance, high refractive index, high dielectric constant, good antibacterial and photoelectrochemical properties. In order to improve wear resistance of stainless steel AISI 304 (X5CrNi18-10), ceramics nanostructured TiO2 thin films were deposited on the steel surface by the sol-gel process and dip coating technique. Stainless steel substrates were drawn from the sol at two different rates. After dip coating, the steel substrates were dried, first at room temperature and thereafter at 100 C. In order to increase the coating thickness, the whole process was repeated three times. Subsequently, heat treatment at two different temperatures (400 C and 500 C) was conducted. Prior to sliding test, the thickness and composition of the deposited films were analyzed by Quantitative Depth Profile (QDP) analysis on the Glow Discharge Optical Emission Spectrometer (GDOES). Sliding tests were performed by modified "block on ring" method. Wear scars were analyzed by optical microscope and test results showed the influence of drawing rate during dip coating on the width of wear scars.

Item Type: Conference or Workshop Item (Poster)
Keywords (Croatian): titanium dioxide, sol-gel, stainless steel, sliding wear
Subjects: TECHNICAL SCIENCE > Chemical engineering
TECHNICAL SCIENCE > Mechanical Engineering
Divisions: 1000 Department of Materials > 1010 Chair of Materials and Tribology
Date Deposited: 20 Sep 2016 13:47
Last Modified: 20 Sep 2016 13:47

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