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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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Balat-Pichelin, Marianne J. H.
Laboratoire Procédés, Matériaux et Energie Solaire
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (26/26 displayed)
- 2021Metal fuels production through the solar carbothermal reduction of magnesia: Effect of the reducing agentcitations
- 2021Metallic fuels production through the solar carbothermal reduction of magnesia: effect of the reducing agent
- 2021Oxidation and high-temperature radiative properties of the Kanthal Super ER intermetallic alloycitations
- 2020Oxidation in air at 1400 K and optical properties of Inconel 625, FeCrAlloy and Kanthal Super ERcitations
- 2019Sintering and oxidation behavior of HfB2-SiC composites from 0 to 30 vol% SiC between 1450 and 1800 Kcitations
- 2019Sintering and oxidation behavior of HfB2-SiC composites from 0 to 30 vol% SiC between 1450 and 1800 Kcitations
- 2019High temperature oxidation behavior of fully dense ZrB2/SiC and HfB2/SiC ceramic composites with various compositions under atomic oxygen plasma
- 2019High temperature properties of AlN coatings deposited by chemical vapor deposition for solar central receiverscitations
- 2019Multilayer multifunctional advanced coatings for receivers of concentrated solar power plantscitations
- 2019High temperature chemical vapor deposition of aluminum nitride thin films and coatings: properties and applications
- 2018Comportement à l'oxydation des composites ultra-réfractaires (Hf/Zr)B2-SiC à très haute température et au cyclage
- 2018Thermal analysis on the AlSi12-SiC hybrid composites sintered using solar energy (poster)
- 2017Contribution à l'étude thermodynamique et comportement à l'oxydation de céramiques ultra-réfractaires à base de diborure d'hafnium et de carbure de silicium
- 2017Contribution to the thermodynamic study and oxidation behavior of HfB2-SiC Ultra-High Temperature Ceramics
- 2016Optical indices and transport scattering coefficient of pyrolytic boron nitride: a natural thermal barrier coating for solar shieldscitations
- 2016Optical indices and transport scattering coefficient of pyrolytic boron nitride: a natural thermal barrier coating for solar shieldscitations
- 2016Influence of surface roughness and temperature on the oxidation behavior of ZrC/SiC samplescitations
- 2015Oxidation at high temperature in air plasma for the TPS of IXV – Passive/active transition and temperature jump
- 2014Synthesis of iron-oxide nanowires using industrial-grade iron substratescitations
- 2014Oxidation of Inconel 625 superalloy upon treatment with oxygen or hydrogen plasma at high temperaturecitations
- 2014Aerothermal response of ceramic matrix composites to nitrogen plasma at temperatures above 2000 Kcitations
- 2014Oxidation behavior of spark plasma sintered ZrC–SiC composites obtained from the polymer-derived ceramics routecitations
- 2014XPS and AES studies of UHTC ZrB2-SiC-Si3N4 treated with solar energycitations
- 2014Emissivity, catalycity and microstructural characterization of ZrB2–SiCfiber based UHTC at high temperature in a non-equilibrium air plasma flowcitations
- 2012A Catalytic Sensor for Measurement of Radical Density in CO2 Plasmascitations
- 2012High temperature oxidation of SiC f /PyC/SiC composite in helium for the Gas-cooled Fast Reactor
Places of action
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conferencepaper
High temperature oxidation behavior of fully dense ZrB2/SiC and HfB2/SiC ceramic composites with various compositions under atomic oxygen plasma
Abstract
International audience ; Fully dense ZrB2/SiC and HfB2/SiC ceramic composites with various compositions were obtained by Spark Plasma Sintering without any sintering aid. The high temperature oxidation of these materials was then studied using the MESOX facility (PROMES, Odeillo, France), placed at the focus of the 6 kW solar furnace, for a total air pressure of 1000 Pa. Atomic oxygen was produced into the silica reactor thanks to a 300 W microwave discharge and the created plasma was surrounding the sample. Two compositions of each system were oxidized in air plasma from 1800 to 2200 K: Z80, Z70, H80 and H70. The denomination of our samples was based on the vol.% of the compound, for example H70 corresponds to 70 vol.% HfB2 and 30 vol.% SiC. These compositions were identified as the most promising during oxidation under molecular oxygen (in air) up to 1800 K [1]. Surfaces and cross-sections of the samples were analyzed using XRD, SEM/EDS, XPS and Raman spectroscopy in order to study the oxidation mechanisms for all the temperatures used. Through the combination of these techniques, it was shown that the behavior of the samples for each system was similar between 1800 and 2000 K, with the formation of a modified silica glassy layer in which B2O3 and ZrO2 or HfO2 were identified. The key parameter for the understanding of the oxidation behavior is the diffusion of atomic oxygen into the material, and when formed, through the glassy layer. Hafnon and Zircon formation were reported in the literature, and only ZrSiO4 was identified in this work. The fact is that the formation of this compound has a direct incidence on the oxygen diffusion through the glassy layer. For temperatures higher than 2000 K and up to 2200 K, the behavior of the material was quite different with the formation of ZrO2 or HfO2 and significant mass losses were measured. Oxidation mechanisms based on these experiments and characterizations were proposed.[1] C. Piriou et al., "Sintering and oxidation behavior of HfB2-SiC composites from 0 to 30 ...