| People | Locations | Statistics |
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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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Sciti, Diletta
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (29/29 displayed)
- 2023Elevated temperature tensile and bending strength of ultra-high temperature ceramic matrix composites obtained by different processescitations
- 2021Retained strength of UHTCMCs after oxidation at 2278 Kcitations
- 2021Insight into microstructure and flexural strength of ultra-high temperature ceramics enriched SICARBON™ compositecitations
- 2019Ablation behaviour of ultra-high temperature ceramic matrix compositescitations
- 2019An overview of ultra-refractory ceramics for thermodynamic solar energy generation at high temperaturecitations
- 2019Merging toughness and oxidation resistance in a light ZrB2 compositecitations
- 2016Compositional dependence of optical properties of zirconium, hafnium and tantalum carbides for solar absorber applicationscitations
- 2016Process and composition dependence of optical properties of zirconium, hafnium and tantalum borides for solar receiver applicationscitations
- 2014XPS and AES studies of UHTC ZrB2-SiC-Si3N4 treated with solar energycitations
- 2013Study of SiC fiber-matrix interaction in ultra-high temperature ceramics by transmission electron microscopy
- 2013Production of UHTC complex shapes and architectures
- 2012ZrB2 and HfB2 toughened with Hi Nicalon SiC chopped fibers
- 2012TaB2-based ceramics: microstructure, mechanical properties and oxidation resistance
- 2012Fabrication and characterization of high temperature ceramics for novel solar absorbers
- 2012Testing SiC fiber-reinforced ZrB2 sharp component in supersonic regime
- 2012Joining of ultra-high temperature ceramics
- 2011Production and characterization of toughened UHTC
- 2011Ultrahigh temperature ceramics for aerospace and solar energy applications
- 2011Laser Micromachining of Ceramics
- 2010TEM analysis on TaSi2-containing ultra-high temperature ceramics
- 2010Sintering Behavior, Microstructure, and Mechanical Properties: A Comparison among Pressureless Sintered Ultra-Refractory Carbidescitations
- 2010Ultra-high temperature ceramics containing TaSi2
- 2010Processing and properties of ultra-refractory composites based on Zr- and Hf-borides: state of the art and perspectives
- 2009TEM analysis of boride-based ultra-high temperature ceramics
- 2009UHTC composites for thermal protection systems
- 2008Microstructure characterization of boride-based ultra-high-temperature ceramics
- 2008TEM characterization of carbide-based ultra-high temperature ceramics
- 2007Fabrication and properties of HfB2-based composites
- 2006Analysis of nanoindentation tests in SiC-based ceramicscitations
Places of action
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article
XPS and AES studies of UHTC ZrB2-SiC-Si3N4 treated with solar energy
Abstract
The microstructure of ultra-high-temperature ceramics based on the ZrB2–SiC composition and a sintering additive (Si3N4) was investigated using XPS and AES techniques. These ZrB2–SiC–Si3N4 materials were treated in air plasma at high temperature (T > 1750 K) in the MESOX facility developed at the PROMES-CNRS laboratory (Moyen d'Essai Solaire d'OXydation for the measurement of atomic oxygen recombination coefficients). The surfaces were characterized before and after the air plasma treatment. Surface modifications were observed and induced by the oxidation process. The elementary composition was determined using AES and XPS. Core level spectroscopy (XPS) was used to determine the atomic composition and the nature of the chemical bonds from the Zr 3d3/2,5/2, Si 2p1/2,3/2, O 1s and C 1s photoelectron peaks. The microstructural analyses revealed the presence of oxide layers: Silica and zirconia compounds were detected at temperatures near 1800 K, and a zirconia compound was mainly detected above 2200 K.