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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
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conferencepaper
Contribution to the thermodynamic study and oxidation behavior of HfB2-SiC Ultra-High Temperature Ceramics
Abstract
Ultra-High Temperature Ceramics (UHTCs), more specifically diborides of the IVb group, are potential candidates for a large variety of applications, in particular as structural materials for thermal protection of hypersonic vehicles exposed to high temperatures (> 1800°C) and to oxidation1.The aim of this work consists in elaborating ultra-high temperature HfB2-SiC ceramic composites used as structural materials for several applications, such as aeronautic and aerospace areas and to understand oxidation mechanisms involved during their entry into the atmosphere. The sintering of these materials at different compositions has been carried out by Spark Plasma Sintering (SPS). This process is used to obtain fully dense materials (> 98% relative density) with fine grains, at lower temperatures and shorter dwell times than conventional techniques (natural sintering, hot pressing)2. In order to favor densification and to obtain a homogeneous distribution of both phases in the final material, a study on the raw powders granulometry has been necessary. An optimization of sintering conditions (applied load, temperature and its hold time, heating rate) has been subsequently carried out in order to elaborate fully dense samples by using parameters adapted to their environment. Obtained bulk bodies have been oxidized at several temperatures with a solar furnace to approach conditions to which hypersonic vehicles are subjected. Oxidation mechanisms have been highlighted through the study of the oxidized layers by combining X-ray diffraction analysis (XRD), Scanning Electron Microscopy (SEM), X-ray Photoelectron Spectrometry (XPS) and Time-of-Flight Secondary Ion Mass Spectrometry (ToF-SIMS). This work was helped by the obtaining of kinetic data during oxidation tests. In order to supplement this study, a first thermodynamic approach of the Hf-B-Si-C system has been made through the modeling of ternary diagrams, the aim being to constitute a coherent data base of this quaternary system.References 1 F. Monteverde and A. Belosi, “The resistance to oxidation of an HfB2-SiC composite”, J. Eur. Ceram. Soc., 25, pp.1025-1031, 2005. 2 D. Sciti, and al. “Spark Plasma Sintering of HfB2 with low additions of silicides of molybdenum and tantalum”, J. Eur. Ceram. Soc., 30, pp.3253-3258, 2010.