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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Mondinos, N.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2021High temperature (up to 1200 °C) thermal-mechanical stability of Si and Ni doped CrN framework coatingscitations
- 2019Nanorose-like ZnCo2O4 coatings synthesized via sol–gel route: Morphology, grain growth and DFT simulationscitations
- 2017Structural and optical characteristics of pre- and post-annealed sol-gel derived CoCu-oxide coatingscitations
- 2017Investigation of the post-annealing electromagnetic response of Cu–Co oxide coatings via optical measurement and computational modellingcitations
- 2016Structural thermal stability of graphene oxide-doped copper-cobalt oxide coatings as a solar selective surfacecitations
- 2016Effects of annealing temperatures on the morphological, mechanical, surface chemical bonding, and solar selectivity properties of sputtered TiAlSiN thin filmscitations
- 2016Structural, optical, and mechanical properties of cobalt copper oxide coatings synthesized from low concentrations of sol-gel processcitations
- 2016Chemical bonding states and solar selective characteristics of unbalanced magnetron sputtered TixM1−x−yNyfilmscitations
- 2016Understanding the structural, morphological and optical features of Mo, CrN and CrMoN sputtered films
- 20153d transition metal oxide based sol-gel derived coatings for photothermal applications
- 2014Understanding local bonding structures of Ni-doped chromium nitride coatings through synchrotron radiation NEXAFS spectroscopycitations
- 2014Phase transition in CrxAl(1-x)N coating at high temperatures
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article
Structural, optical, and mechanical properties of cobalt copper oxide coatings synthesized from low concentrations of sol-gel process
Abstract
Thin films of CoxCuyOz have been coated on aluminum substrates via sol–gel route using low concentration of copper and cobalt precursors at annealing temperatures in range of 500–650 °C. The coatings were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), UV-Vis-NIR spectrophotometry, and nanoindentation. The XRD analysis in 2θ-range of 30°–42° revealed that the coatings exhibited low crystallinity of CoCu2O3, CoCuO2, and CuCoO2. The surface bonding structure analyzed using XPS indicated that the coating contained: Cu (tetrahedral Cu+ and octahedral Cu2+), Co (octahedral Co3+, tetrahedral Co2+, and mixed Co2+ and Co3+), and O (lattice, surface, and sub-surface oxygens).The optical properties characterized using UV-Vis-NIR showed that the reflectance spectra of coatings formed a spectrally solar selective absorber profile associated with the interference peaks and the absorption edges around wavelengths of below 1.2 μm. The maximum absorptance (α = 75.8%) was shown by coating synthesized at 500 °C. The mechanical properties of coatings showed that the increase of annealing temperature increased the coating's hardness (H) and the elastic modulus (E) due to the enhancement of the [CoCuO2/CuCoO2]:[CoCu2O3] oxide phases ratio, as the result, an excellent stability of the wear resistance (H/E) of around ∼0.035 was recorded.