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dc.contributor.authorLEHTIHET, M.
dc.contributor.authorABISSET, Emmanuelle
dc.contributor.authorCHEVALIER, Stephane
dc.contributor.authorSOMMIER, Alain
dc.contributor.authorPRADERE, Christophe
IDREF: 095038132
dc.contributor.authorLENG, J.
dc.date2020
dc.date.accessioned2021-05-14T09:32:09Z
dc.date.available2021-05-14T09:32:09Z
dc.date.issued2020
dc.identifier.issn1385-8947
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/75946
dc.description.abstractEn• InfraRed imaging technique for compositional and thermal mapping of transient systems. • Application to a drying droplet of silica dispersion confined between two hydrophobic substrates. • Colloids redistribution due to inhomogeneous drying is highlighted and accurately described. • A numerical statistical inverse method is used to retrieve mutual diffusion coefficient as transient maps. We present an infrared (IR) imaging technique that allows us to retrieve quantitative concentration and thermal maps with relatively fast acquisition times for samples that are evolving in time and have micron-scale spatial resolution. As a proof-of-concept, we image the transient drying kinetics of a μL drop of colloidal suspension in a confined geometry. Quantitative concentration maps inside the drying droplet are retrieved. Transport phenomena such as colloid redistribution inside the droplet due to inhomogeneous drying can be highlighted by this means. A numerical inverse method based on the acquired images that allows one to estimate intrinsic properties of the studied material, such as the collective diffusion coefficient of the mixture, is presented. Such a technique combined with statistical inverse methods provides a useful, non-invasive means of visualizing and estimating parameters of materials evolving in time.
dc.language.isoen
dc.publisherElsevier
dc.subject.enThermospectroscopy
dc.subject.enInfrared imaging
dc.subject.enSilica dispersion
dc.subject.enConfined drying
dc.subject.enTransport properties
dc.title.enThermospectroscopic infrared imaging of a confined drying process
dc.typeArticle de revue
dc.identifier.doi10.1016/j.cej.2020.126167
dc.subject.halSciences de l'ingénieur [physics]
bordeaux.journalChemical Engineering Journal
bordeaux.page126167
bordeaux.volume403
bordeaux.hal.laboratoriesInstitut de Mécanique et d’Ingénierie de Bordeaux (I2M) - UMR 5295*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.institutionINRAE
bordeaux.institutionArts et Métiers
bordeaux.peerReviewedoui
hal.identifierhal-02998122
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02998122v1
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