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Boulet, Pascal
Institut Jean Lamour
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (54/54 displayed)
- 2024<i>In situ</i> tracking the phase change in metastable copper oxide thin film via thermal oxidation
- 2024In situ tracking the phase change in metastable copper oxide thin film via thermal oxidation
- 2024Hot melt extruded amorphous solid dispersions containing lumefantrine and Solupluscitations
- 2024High quality ZnMgAlO thin films by ultrasonic spray pyrolysis: tuning of optoelectronic properties for use as TCO, window layer, and buffer layer in all-oxide solar cellscitations
- 2024Integration of epitaxial LiNbO3 thin films with silicon technologycitations
- 2024ZnMgO Thin Films by Ultrasonic Spray Pyrolysis: Modulation of Optical and Electrical Properties by Post‐annealing and Magnesium Compositioncitations
- 2023Crystal structure and ferromagnetism of the CeFe$_9$Si$_4$ intermetallic compoundcitations
- 2023Investigation of PbSnTeSe High-Entropy Thermoelectric Alloy: A DFT Approachcitations
- 2023Crystal Structure and Ferromagnetism of the CeFe₉Si₄ Intermetallic Compoundcitations
- 2023Development of a two-step process based on ultrasonic spray pyrolysis to optimize optical and electrical properties of ZnMgAlO
- 2022Crystal structure, microstructure and electronic properties of a newly discovered ternary phase in the Al-Cr-Sc systemcitations
- 2022Investigation of PbSnTeSe High-Entropy Thermoelectric Alloy: A DFT Approachcitations
- 2022Effect of Pre-Oxidation on a Ti PVD Coated Ferritic Steel Substrate during High-Temperature Agingcitations
- 2022Theoretical and experimental approaches for the determination of functional properties of MgSnN 2 thin filmscitations
- 2022Theoretical and experimental approaches for the determination of functional properties of MgSnN2 thin filmscitations
- 2022Al 4 Ir: An Al–Ir Binary-Phase Superstructure of the Ni 2 Al 3 Typecitations
- 2021Structure–Property Relationships in Transition Metal Dichalcogenide Bilayers under Biaxial Strainscitations
- 2021Continuous manufacture of hydroxychloroquine sulfate drug products via hot melt extrusion technology to meet increased demand during a global pandemic: From bench to pilot scalecitations
- 2021Continuous manufacture of hydroxychloroquine sulfate drug products via hot melt extrusion technology to meet increased demand during a global pandemic: From bench to pilot scalecitations
- 2021Investigation of the (1 0 0) and (0 0 1) surfaces of the Al5Fe2 intermetallic compoundcitations
- 2021Structural model and spin-glass magnetism of the Ce 3 Au 13 Ge 4 quasicrystalline approximantcitations
- 2021Crystal Structure, Microstructure and Electronic Properties of a Newly Discovered Ternary Phase in the Al-Cr-Sc Systemcitations
- 2021Effect of the precursor concentration on structural properties of ZnO thin films by ultrasonic spray pyrolysis
- 2021Elaboration of high-transparency ZnO thin films by ultrasonic spray pyrolysis with fast growth ratecitations
- 2020Effect of Thermal Stresses Formed during Air Annealing of Amorphous Lanthanum Cuprate Thin Films Deposited on Silicon Substratecitations
- 2020Epitaxial Growth of Sc0.09Al0.91N and Sc0.18Al0.82N Thin Films on Sapphire Substrates by Magnetron Sputtering for Surface Acoustic Waves Applicationscitations
- 2020Paramagnetism and martensite stabilization of tensile strained NiTi shape memory alloycitations
- 2020Single crystal growth, crystal structure and surface characterisation of the binary phase Al45Cr7.citations
- 2019Probing the growth window of LaVO 3 perovskites thin films elaborated using magnetron co-sputteringcitations
- 2019Probing the growth window of LaVO3 perovskites thin films elaborated using magnetron co-sputteringcitations
- 2019Study of ignition and extinction of spruce glulam exposed to a radiative flux
- 2019Overview of the U3TGe5 family with T=Ti, V, Cr, Mn, Zr, Nb, Mo, Hf, Ta and W Nine new members, phase formation, stability, structural and physical properties and electronic structurescitations
- 2019A new ternary compound with the BGa8Ir4 structure type in the Al-Au-Ir systemcitations
- 2018Chemical environment and functional properties of highly crystalline ZnSnN2 thin films deposited by reactive sputtering at room temperaturecitations
- 2018Towards stoichiometric LiNbO3 epitaxial thin films grown by DLI-MOCVD
- 2018A voltammetric study on the atomic layer deposition of selenium and antimony on platinum electrode
- 2017Surface temperature of carbon composite samples during thermal degradationcitations
- 2017LaFeOxNy perovskite thin films: Nitrogen location and its effect on morphological, optical and structural propertiescitations
- 2017Comparison between Ir, Ir 0.85 Rh 0.15 and Ir 0.7 Rh 0.3 thin films as electrodes for surface acoustic waves applications above 800°C in air atmospherecitations
- 2016Properties of rare-earth orthoferrites perovskite driven by steric hindrancecitations
- 2016Influence of plasma treatments and SnO2 alloying on the conductive properties of epitaxial Ga2O3 films deposited on C-sapphire by chemical vapor deposition
- 2016Epitaxy, optical and acoustical properties of X-, Y-, and Z-axis oriented LiNbO3 thin films on sapphire substrates
- 2016Residual stresses in X-, Y-, and Z-axis oriented LiNbO3 thin films on sapphire substrates
- 2015Thermoelectric Properties of Sn-Containing Mg 2 Si Nanostructurescitations
- 2015On the Influence of the Sample Absorptivity when Studying the Thermal Degradation of Materialscitations
- 2015AlN films deposited by dc magnetron sputtering and high power impulse magnetron sputtering for SAW applicationscitations
- 2015Tuning the structure and preferred orientation in reactively sputtered copper oxide thin filmscitations
- 2014Controlling the preferred orientation in sputter-deposited Cu2O thin films: Influence of the initial growth stage and homoepitaxial growth mechanismcitations
- 2014Testing epitaxial Co1.5Fe1.5Ge(001) electrodes in MgO-based magnetic tunnel junctionscitations
- 2013Isothermal α″ formation in β metastable titanium alloyscitations
- 2013Magnetic and electronic properties of NpCo2: Evidence for long-range magnetic ordercitations
- 2013Cation size effect on the thermochromic properties of rare earth cobaltites RECoO3 (RE: La, Nd, Sm)citations
- 2013Combined Temperature and Deformation Measurement During Glass Forming in a Real Scale Setupcitations
- 2011Experimental Investigation of Radiation Emitted by Optically Thin to Optically Thick Wildland Flamescitations
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article
Crystal Structure, Microstructure and Electronic Properties of a Newly Discovered Ternary Phase in the Al-Cr-Sc System
Abstract
International audience ; This study focused on the crystal and electronic structures of a newly discovered phase in the Al-Cr-Sc system. The latter two species do not mix in a binary alloy, but can be alloyed with aluminium in the vicinity of the Al2−xCrxSc composition, where 0.3 < x < 0.5. After preparation of the pure constituents via arc melting, high-temperature annealing at 990 ◦C for 240 h was required to achieve full mixing of the elements. A detailed characterisation of the crystal structure, alloy microstructure and stability was obtained using single-crystal X-ray diffraction (SCXRD) and powder X-ray diffraction (PXRD), in addition to transmission electron microscopy (TEM), especially in high-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM) mode, scanning electron microscopy (SEM) with energy-dispersive X-ray spectroscopy (EDXS) and differential scanning calorimetry (DSC) measurements. The crystal structure was refined to a hexagonal unit cell of the MgZn2 type, space group no. 194, P63/mmc, which belongs to the Laves phases family. Special attention was paid to the occupancy of the crystallographic sites that were filled by both Cr and Al atoms. First-principles calculations based on the density functional theory (DFT) were performed toinvestigate the electronic structure of this ternary phase. The total density of states (DOS) exhibited a pronounced sp character, where a shallow pseudo-gap was visible 0.5 eV below the Fermi energy that brought a small but definite contribution to the thermodynamic stability of the compound.