Afficher la notice abrégée

Non-destructive evaluation of ceramic porosity using terahertz time-domain spectroscopy

hal.structure.identifierDirection de Recherche Technologique (CEA) [DRT (CEA)]
dc.contributor.authorHAKOBYAN, Davit
hal.structure.identifierDirection de Recherche Technologique (CEA) [DRT (CEA)]
dc.contributor.authorHAMDI, Maher
hal.structure.identifierDirection de Recherche Technologique (CEA) [DRT (CEA)]
dc.contributor.authorREDON, Olivier
dc.contributor.authorBALLESTERO, Anthony
dc.contributor.authorMAYAUDON, Alexis
dc.contributor.authorBOYER, Laurence
dc.contributor.authorDURAND, Olivier
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
hal.structure.identifierDirection de Recherche Technologique (CEA) [DRT (CEA)]
dc.contributor.authorABRAHAM, Emmanuel
dc.date.created2021-10-18
dc.date.issued2022
dc.identifier.issn0955-2219
dc.description.abstractEnDielectric constants of Al 2 O 3 (alumina) ceramic samples have been measured with non-destructive terahertz time-domain spectroscopy. Using an effective medium approximation, we demonstrated that the relative permittivity can be used to evaluate the porous alumina samples, with porosity fractions ranging from 0% to 20% per volume. This result makes it possible to control sample porosity, a key material parameter related to mechanical strength under compression load, hardness and wear resistance, or thermal stability. We also employed terahertz time-domain spectroscopy to differentiate alumina samples fabricated with different grain sizes, or reveal a small fraction of impurities, such as 5% vol of ZrO 2 , embedded in non-porous alumina. These results demonstrated the potential of terahertz radiation for non-destructive characterization of low loss high dielectric constant ceramics.
dc.language.isoen
dc.publisherElsevier
dc.subject.enPorosity evaluation
dc.subject.enaluminum oxide Al 2 O 3
dc.subject.enceramics
dc.subject.ennon-destructive evaluation
dc.subject.endielectric properties
dc.subject.enterahertz time-domain spectroscopy
dc.title.enNon-destructive evaluation of ceramic porosity using terahertz time-domain spectroscopy
dc.typeArticle de revue
dc.identifier.doi10.1016/j.jeurceramsoc.2021.10.026
dc.subject.halChimie/Matériaux
dc.subject.halPhysique [physics]/Physique [physics]/Instrumentations et Détecteurs [physics.ins-det]
bordeaux.journalJournal of the European Ceramic Society
bordeaux.page525-533
bordeaux.volume42
bordeaux.issue2
bordeaux.peerReviewedoui
hal.identifierhal-03525103
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03525103v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20the%20European%20Ceramic%20Society&rft.date=2022&rft.volume=42&rft.issue=2&rft.spage=525-533&rft.epage=525-533&rft.eissn=0955-2219&rft.issn=0955-2219&rft.au=HAKOBYAN,%20Davit&HAMDI,%20Maher&REDON,%20Olivier&BALLESTERO,%20Anthony&MAYAUDON,%20Alexis&rft.genre=article


Fichier(s) constituant ce document

FichiersTailleFormatVue

Il n'y a pas de fichiers associés à ce document.

Ce document figure dans la(les) collection(s) suivante(s)

Afficher la notice abrégée