Search Results - "Brackx, Emmanuelle"
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Cationic local composition fluctuations in rapidly cooled nuclear fuel melts
Published in Nuclear Materials and Energy (01-06-2022)“…[Display omitted] •We demonstrate through high-resolution X-ray diffraction experiments that large cationic fluctuations are present inside the corium crystals…”
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Periodic Multilayer for X-ray Spectroscopy in the Li K Range
Published in Applied sciences (01-07-2021)“…X-ray spectroscopy of lithium is very difficult, even impossible, with wavelength dispersive spectrometers commonly deployed on scanning electron microscopes…”
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Ion exchange and structural properties of a new cyanoferrate mesoporous silica material for Cs removal from natural saline waters
Published in Journal of environmental chemical engineering (01-02-2017)“…[Display omitted] •A new inorganic adsorbent of Cs is synthetized for water decontamination.•Sorption kinetics is fast due to open silica porosity and…”
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Lanthanum and Neodymium Solubility in Simplified SiO2-B2O3-Na2O-Al2O3-CaO High Level Waste Glass
Published in Journal of the American Ceramic Society (01-08-2012)“…Lanthanum and neodymium incorporation in simplified high level waste glasses has been investigated for SiO2-B2O3-Na2O-Al2O3-CaO compositions quenched from…”
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A new device for high-resolution Li K X-ray spectroscopy using an electron microprobe
Published in Spectrochimica acta. Part B: Atomic spectroscopy (01-08-2024)“…Lithium is one of the key elements in today's materials and battery industry, and the interest in non-destructive characterization techniques at a micron scale…”
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A method for the correction of size effects in microparticles using a peak-to-background approach in electron-probe microanalysis
Published in Spectrochimica acta. Part B: Atomic spectroscopy (01-07-2020)“…We describe a correction method in electron probe microanalysis (EPMA) for size effects in microparticles. Accounting for size effects is important in…”
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Electron probe microanalysis of light elements: Improvements in the measurement and signal extraction methods
Published in X-ray spectrometry (01-07-2022)“…Quantitative electron probe microanalysis (EPMA) by wavelength dispersive spectrometry of light elements is a significant challenge due to difficulties of…”
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Effect of dissolved Si on the corrosion of iron in deaerated and slightly alkaline solutions (pH ≈ 8.1) at 50 °C
Published in Corrosion science (01-01-2023)“…Corrosion of iron in deaerated and slightly alkaline buffered solutions was investigated for different Si concentrations ([Si] varying from ≈0 to ≈110 mg L−1)…”
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Characterization of the chemical composition of uranium microparticles with irregular shapes using standardless electron probe microanalysis and micro-Raman spectrometry
Published in Analytical chemistry (Washington) (16-06-2020)“…We describe an approach enabling the identification of the elemental composition of uranium microparticles with undefined geometry using standardless…”
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Crystallization and rheological study of a Nd-oxyapatite-bearing melt
Published in Journal of non-crystalline solids (15-03-2024)“…•Crystallization and rheology study of a neodymium oxyapatite-bearing melt.•Equilibrium fraction equivalence for static and dynamic crystallization…”
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Chemical interaction between uranium dioxide, boron carbide and stainless steel at 1900 °C — Application to a severe accident scenario in sodium cooled fast reactors
Published in Journal of nuclear materials (15-12-2021)“…•The interaction between UO2 and a mixture (B4C + stainless steel) at 1900°C leads to the two-phase equilibrium: UO2-x + liquid.•The liquid phase contains…”
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Influence of particle size and shape properties on cake resistance and compressibility during pressure filtration
Published in Chemical engineering science (22-04-2016)“…The aim of this paper was to study cake filterability and compressibility as a function of the particle shape and particle size distribution (PSD). Different…”
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Chemical compatibility between UO2 fuel and SiC cladding for LWRs. Application to ATF (Accident-Tolerant Fuels)
Published in Journal of nuclear materials (15-04-2017)“…Silicon carbide-silicon carbide (SiC/SiC) composites are considered to replace the current zirconium-based cladding materials thanks to their good behavior…”
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Experiences from the cutting of metallic blocks from simulant Fukushima Daiichi fuel debris
Published in Journal of nuclear science and technology (01-09-2024)“…CEA has manufactured a series of Fukushima Daiichi fuel debris simulants, either with depleted uranium oxide or with hafnium oxide as a surrogate of UO 2 . In…”
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Redox behavior of ruthenium in nuclear glass melt: ruthenium dioxide reduction reaction
Published in Journal of nuclear materials (01-03-2021)“…Among platinoid fission products, ruthenium is a key element during the vitrification of high-level waste because it is poorly soluble in the glass matrix. It…”
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Mechanical behaviour of porous lanthanide oxide microspheres: Experimental investigation and numerical simulations
Published in Journal of the European Ceramic Society (01-02-2018)“…Actinide oxide microspheres are considered as promising substituents to powder precursors for the production of ceramic pellets of nuclear fuel or targets…”
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Lanthanum and Neodymium Solubility in Simplified SiO 2– B 2 O 3– Na 2 O – Al 2 O 3– CaO High Level Waste Glass
Published in Journal of the American Ceramic Society (01-08-2012)“…Lanthanum and neodymium incorporation in simplified high level waste glasses has been investigated for SiO 2– B 2 O 3– Na 2 O – Al 2 O 3– CaO compositions…”
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Application of the JMAK model for crystal dissolution kinetics in a borosilicate melt
Published in Journal of non-crystalline solids (01-06-2018)“…In the literature, a previous work has validated the application of the generalized JMAK equation to model the crystal dissolution kinetics in silicate melts…”
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Thermodynamic assessment of the rhodium-ruthenium-oxygen (Rh-Ru-O) system
Published in Journal of nuclear materials (01-03-2018)“…Ruthenium (Ru) and rhodium (Rh) are abundant platinum-group metals formed during burn-up of nuclear fuels. Under normal operating conditions, Rh and Ru…”
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