0000000001011088

AUTHOR

Gilbert Fantozzi

showing 5 related works from this author

Nano-SiC/CNT composites sintered by SPS: CNT amount effect on mechanical, thermal and electrical properties.

2014

International audience

[CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry[CHIM.THEO] Chemical Sciences/Theoretical and/or physical chemistry[ CHIM.THEO ] Chemical Sciences/Theoretical and/or physical chemistryComputingMilieux_MISCELLANEOUS
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Propriétés mécaniques, thermiques et électriques de composites à matrice SiC nanostructurée renforcée de nanotubes de carbone

2015

International audience

[CHIM.MATE] Chemical Sciences/Material chemistry[CHIM.MATE]Chemical Sciences/Material chemistryComputingMilieux_MISCELLANEOUS
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Mechanical, thermal and electrical properties of nanostructured CNTs/SiC composites

2018

International audience; Dense SiC-based nanostructured composites reinforced by well-distributed carbon nanotubes (CNTs) were elaborated for the first time by spark plasma sintering (SPS) without sintering additive. Microstructures of materials containing different amounts of CNTs – up to 8.0 vol% – were correlated with their mechanical, electrical and thermal properties. A continuous decrease of the SiC grain size was observed when the amount of CNT was increased, while the evolution of density showed a different behavior that could be explained by the particular combination of SPS technique with the electrical resistivity evolution of the green bodies. Optimal effect of CNTs addition on h…

ToughnessMaterials scienceSpark plasma sinteringchemistry.chemical_elementSintering02 engineering and technologyCarbon nanotube01 natural scienceslaw.inventionThermal conductivitylawElectrical resistivity and conductivity0103 physical sciencesMaterials ChemistryComposite material010302 applied physicsProcess Chemistry and Technology[CHIM.MATE]Chemical Sciences/Material chemistry021001 nanoscience & nanotechnologyMicrostructureSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialschemistryCeramics and Composites0210 nano-technologyCarbon
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Domain Walls Motions in Barium Titanate Ceramics

1996

The shear modulus and mechanical loss at low frequencies (0.01, 0.3, 1 Hz) are measured by an inverted pendulum for BaTiO 3 ceramic with large grain sizes. The permittivity and dielectric losses are also investigated for the same material at higher frequencies between 1 and 100 kHz as function of temperature. Those results show several relaxation peaks in the ferroelectric phases. The activation energy of each peak is obtained to be 0.29, 0.45, 0.68, 0.92 eV. The influences of strain amplitude and thermal treatments are studied specially for the mechanical relaxation peak located in the tetragonal phase. All the relaxation peaks could be associated to the interaction of oxygen vacancies in …

010302 applied physicsPermittivityMaterials scienceCondensed matter physicsGeneral Physics and AstronomyMineralogy02 engineering and technology021001 nanoscience & nanotechnology01 natural sciencesFerroelectricityPiezoelectricityShear moduluschemistry.chemical_compoundchemistry[PHYS.HIST]Physics [physics]/Physics archivesvisual_art0103 physical sciencesBarium titanatevisual_art.visual_art_mediumRelaxation (physics)Dielectric lossCeramic0210 nano-technologyLe Journal de Physique IV
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Propriétés mécaniques, thermiques et électrioques de composites à matrice SiC nanostructurée renforcée par des nanotubes de carbone

2014

International audience

[CHIM.MATE] Chemical Sciences/Material chemistry[CHIM.MATE]Chemical Sciences/Material chemistryComputingMilieux_MISCELLANEOUS
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