6533b82cfe1ef96bd128eaa0
RESEARCH PRODUCT
Inelastic Light Scattering Contribution to the Study of the Onset of Sintering of a Nanopowder
Laurent DavidAdrien GirardFrédéric DemoissonJérémie MargueritatGuillaume SudreAlain MermetS. Le GalletLucien Saviotsubject
Materials scienceSinteringNanoparticle02 engineering and technology010402 general chemistry01 natural sciencesLight scatteringSpectral linesymbols.namesakeOpticsCondensed Matter::SuperconductivityPhysics::Chemical PhysicsPhysical and Theoretical ChemistryComputingMilieux_MISCELLANEOUSQuasielastic scatteringCondensed matter physicsScatteringbusiness.industry[CHIM.MATE]Chemical Sciences/Material chemistry021001 nanoscience & nanotechnology0104 chemical sciencesSurfaces Coatings and FilmsElectronic Optical and Magnetic Materials[ CHIM.POLY ] Chemical Sciences/PolymersGeneral Energy[CHIM.POLY]Chemical Sciences/Polymers[ CHIM.MATE ] Chemical Sciences/Material chemistrysymbolsExperimental methods0210 nano-technologybusinessRaman spectroscopydescription
International audience; The onset of the sintering of 5 nm ZrO2 and TiO2 nanoparticles is investigated by various methods including inelastic light scattering. A special attention is paid to low-frequency Raman spectra where scattering from confined acoustic vibrations and quasielastic scattering manifest. Significant changes are observed between samples sintered at different temperatures or applied forces. A detailed analysis of the spectra enables to follow the variation of the size of the nanoparticles, the surface area, and the formation of internanoparticles necks in the sintered materials. Finally, low-frequency scattering is shown to be more sensitive to the onset of sintering than most other experimental methods.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-01-19 |