Wear Resistance of Metal Oxide Sol-Gel Coatings Deposited over Ceramic Glazes

2009 ◽  
Vol 423 ◽  
pp. 47-53 ◽  
Author(s):  
R. Galindo ◽  
C. Gargori ◽  
S. Cerro ◽  
J. Badenes ◽  
G. Monrós
Keyword(s):  
Wear Resistance ◽  
Metal Oxide ◽  
Screen Printing ◽  
Sol Gel ◽  
High Wear Resistance ◽  
Oxide Coatings ◽  
Metal Oxide Films ◽  
Tio2 Anatase ◽  
Molar Composition ◽  
Ceramic Glaze

This paper analyse the wear resistance of high reflective metal oxide films of TiO2 (anatase), Fe2O3 (hematite), ZrO2 (Zirconia) and SnO2 (Casiterite) deposited by screen printing over a conventional ceramic glaze (molar composition 0,2CaO.0,15ZnO.0,05K2O.0,1Al2O3 0,45SiO2.0,05ZrO2). All oxide coatings increase the gloss of the substrate producing a lustre effect. Anatase films stand out for their high gloss valour and low roughness Ra. Likewise, all lustres improve the wear resistance of the glaze substrate. Hematite and casiterite coatings stand out for their relatively high wear resistance maintaining relatively high reflectivity.

scholarly journals Development of Silane-Based Coatings with Zirconia Nanoparticles Combining Wetting, Tribological, and Aesthetical Properties

Coatings ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 368 ◽  
Author(s):  
Sara Lopez de Armentia ◽  
Mariola Pantoja ◽  
Juana Abenojar ◽  
Miguel Martinez
Keyword(s):  
Stainless Steel ◽  
Wear Resistance ◽  
Sol Gel ◽  
Dip Coating ◽  
Zro2 Nanoparticles ◽  
High Wear Resistance ◽  
Surface Protection ◽  
Main Research ◽  
Aesthetic Appearance ◽  
Zirconia Nanoparticles

Silane-based coatings with nanoparticles have been widely used in applications related to surface protection. Between them, the improvement of corrosion resistance by increasing the hydrophobicity is one of the main research goals. However, most coatings present problems of low wear resistance and poor aesthetic appearance. Therefore, the overall goal of this research is to manufacture hydrophobic sol-gel coatings based on silanes which comply with good tribological and aesthetical properties. In the present study, stainless steel plates were coated with a silane-based solution containing zirconia nanoparticles by dip coating. Water–ethanol solutions with silanes (methyltrimethoxysilane (MTS) and tetrathoxysilane (TEOS)) and different percentages of ZrO2 nanoparticles were prepared. Gloss, color, contact angle, surface energy, wear resistance, and thickness of coating were analyzed to elucidate the effect of zirconium oxide on the performance of the coatings. Results demonstrate that the ZrO2–silane coatings on stainless steel offer a balanced combination of properties: low wettability, high wear resistance, and similar color and brightness compared to pristine stainless steel.

Wear resistance of gasothermic metal-oxide coatings

1983 ◽  
Vol 22 (9) ◽  
pp. 720-723
Author(s):  
A. D. Sokolov ◽  
I. M. Fedorchenko ◽  
E. I. Ishchenko
Keyword(s):  
Wear Resistance ◽  
Metal Oxide ◽  
Oxide Coatings ◽  
Metal Oxide Coatings

A Surface Sol−Gel Process of TiO2and Other Metal Oxide Films with Molecular Precision

1997 ◽  
Vol 9 (6) ◽  
pp. 1296-1298 ◽  
Author(s):  
Izumi Ichinose ◽  
Hiroyuki Senzu ◽  
Toyoki Kunitake
Keyword(s):  
Metal Oxide ◽  
Sol Gel ◽  
Oxide Films ◽  
Metal Oxide Films ◽  
Sol Gel Process

Metal–oxide films with magnetically-modulated nanoporous architectures

2001 ◽  
Vol 16 (6) ◽  
pp. 1686-1693 ◽  
Author(s):  
Craig A. Grimes ◽  
R. Suresh Singh ◽  
Elizabeth C. Dickey ◽  
Oomman K. Varghese
Keyword(s):  
Magnetic Field ◽  
Metal Oxide ◽  
Coming Out ◽  
Domain Walls ◽  
Substrate Surface ◽  
Sol Gel ◽  
Oxide Films ◽  
Magnetic Domain ◽  
Domain Size ◽  
Metal Oxide Films

A magnetically-driven method for controlling nanodimensional porosity in sol-gel-derived metal–oxide films, including TiO2, Al2O3, and SnO2, coated onto ferromagnetic amorphous substrates, such as the magnetically-soft Metglas1 alloys, is described. On the basis of the porous structures observed dependence on external magnetic field, a model is suggested to explain the phenomena. Under well-defined conditions it appears that the sol particles coming out of solution, and undergoing Brownian motion, follow the magnetic field lines oriented perpendicularly to the substrate surface associated with the magnetic domain walls of the substrate; hence the porosity developed during solvent evaporation correlates with the magnetic domain size.

Effect of Electrode Materials on the Microstructure of Sol-Gel Derived Pzt Ferroelectric Thin Films

1991 ◽  
Vol 243 ◽  
Author(s):  
Sharon A. Myers ◽  
Edward R. Myers
Keyword(s):  
Thin Films ◽  
Metal Oxide ◽  
Electrode Materials ◽  
Volume Fraction ◽  
Sol Gel ◽  
Oxide Films ◽  
Pyrochlore Phase ◽  
Ferroelectric Thin Films ◽  
Metal Oxide Films ◽  
Wide Range

AbstractA wide range of electrode materials have been investigated for use in ferroelectric-silicon CMOS technology. Numerous metal and metal-oxide films were deposited on silicon substrates and coated with sol-gel derived ferroelectric thin films. The films were sintered in either a diffusion furnace or by rapid thermal processing. Transmission electron microscopy was used to investigate the evolution of the resulting ferroelectric thin film microstructure and ferroelectric / electrode material interactions.Microstructural differences such as the volume fraction of the ferroelectric perovskite and pyrochlore phase, domains and grain structure are correlated with electrical results. A strong microstructural dependence on the substrate was found for the Cr, Zr, Hf and Ni electrode materials. In general, chromium and other metal-oxide films had high leakage currents and large volume fractions of the non-ferroelectric pyrochlore phase. Nickel electrodes displayed the best electrical results, but the microstructure is very different from the other ferroelectric films.

Preparation of UV-Curable Nanocomposite Varnish with High Wear Resistance

2012 ◽  
Vol 229-231 ◽  
pp. 121-125
Author(s):  
Bing Zhi Guo ◽  
Yun Zhao ◽  
Hong Bo Liu ◽  
Yang Jun Huang ◽  
Tong Ying Feng ◽  
...  
Keyword(s):  
Wear Resistance ◽  
Performance Test ◽  
Uv Light ◽  
Sol Gel ◽  
Static Friction ◽  
Fracture Morphology ◽  
High Wear Resistance ◽  
Uv Curable ◽  
Nano Sio2 ◽  
Varnish Film

To enhance the interfacial interaction in silica nanoparticles filled polymer composites , nano-SiO2 gel was prepared by a sol-gel route, and then it was modified in situ through a reaction of silane coupling agent with hydroxyl on the surface of SiO2. The modified nano-SiO2 gel was added to the system of light-cured varnish to prepare UV light-cured nanocomposite varnish. The structures and properties of varnish were studied using Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and film performance test. The results showed that the modified nano-SiO2 was well dispersed in the varnish. After introduction of modified nano-SiO2, the fracture morphology of varnish film showed a corrugated shape, indicating the ductile fracture. The wear resistance of the varnish film increased by 50%, the coefficient of static friction reduced about 15%, and gloss improved to some extent.

scholarly journals Special Issue Editorial: Functional Oxide Based Thin-Film Materials

Crystals ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 195
Author(s):  
Dong-Sing Wuu
Keyword(s):  
Thin Film ◽  
Wear Resistance ◽  
Corrosion Resistance ◽  
Chemical Stability ◽  
Dielectric Strength ◽  
High Wear Resistance ◽  
Special Issue ◽  
Oxide Coatings ◽  
High Corrosion Resistance ◽  
Protective Oxide

Protective oxide coatings, such as Al2O3 and Y2O3 coatings, are widely used in semiconductor industries because of their hardness, high wear resistance, dielectric strength, high corrosion resistance, and chemical stability for plasma chambers [...]

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