Indentation properties of ZrO2–SiO2 coatings on glass substrates

Abstract

Sol-gel coatings of different composition in the ZrO 2 -SiO 2 system have been prepared, starting from several precursors (alkoxides and alkylalkoxides). Common soda lime silicate glass slides were used as substrates for coating deposition. The Vickers microhardness,H V , of the coated glass substrates have slightly higher values than that of uncoated glass. Young modulus, E, values for coated glass substrates are higher than that of uncoated glass. To compare the mechanical properties of the samples, the ratio H V /K IC (where K IC is the toughness) has been calculated and the concept of fragility discussed. The fragility of coated samples increases as the ZrO 2 content diminishes and the SiO 2 increases. Both scanning and transmission electron microscopy observations were performed to characterise the textural and microstructural properties of the coatings.

Antimicrobial Coatings for Food Contact Surfaces: Legal Framework, Mechanical Properties, and Potential Applications

“…Dip coating is typically employed for more viscous precursors, as it is more difficult to achieve uniform coatings with highly viscous inks using spin coating. The hardness of spin‐coated/dip‐coated coatings varies, with typical hardness values from 5 to 9 GPa (Çomaklı et al., ; Garcı́a‐Heras, Rincón, Romero, & Villegas, ; Williford et al., ). Finally, less common deposition methods include electrophoretic deposition and chemical vapor deposition, among others (Hafedh et al., ; Sobczyk‐Guzenda et al., ).…”

Preparation, characterization, and biological properties of organic–inorganic nanocomposite coatings on titanium substrates prepared by sol–gel

“…It is desirable to combine the mechanical properties of metallic implants with the bioactivity and biocompatibility of hybrid ZrO 2 /PCL materials …”

“…It is desirable to combine the mechanical properties of metallic implants with the bioactivity and biocompatibility of hybrid ZrO 2 /PCL materials. 6,[8][9][10][11] The tissue response to an implant involves physical factors, depending on the implant design, surface topography, and chemical factors associated with the composition and structure of the material.…”

ZrO2/SiO2 Fine Particle Synthesis by MOCVD

“…[2] The durability of coatings containing composite SiO 2 /ZrO 2 thin films has been tested and shown to improve material micro-hardness and Young's modulus. [3] Generally, composite SiO 2 /ZrO 2 nanoor microstructure-containing particles or coatings have been produced via wet chemistry using the sol-gel method. [2][3][4][5] In these studies, metal alkoxides have been used as precursors.…”

“…[3] Generally, composite SiO 2 /ZrO 2 nanoor microstructure-containing particles or coatings have been produced via wet chemistry using the sol-gel method. [2][3][4][5] In these studies, metal alkoxides have been used as precursors. Another very promising way to produce SiO 2 / ZrO 2 nanoparticles and deposits are gas-phase processes such as CVD.…”