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Non-destructive evaluation of ceramic porosity using terahertz time-domain spectroscopy
hal.structure.identifier | Direction de Recherche Technologique (CEA) [DRT (CEA)] | |
dc.contributor.author | HAKOBYAN, Davit | |
hal.structure.identifier | Direction de Recherche Technologique (CEA) [DRT (CEA)] | |
dc.contributor.author | HAMDI, Maher | |
hal.structure.identifier | Direction de Recherche Technologique (CEA) [DRT (CEA)] | |
dc.contributor.author | REDON, Olivier | |
dc.contributor.author | BALLESTERO, Anthony | |
dc.contributor.author | MAYAUDON, Alexis | |
dc.contributor.author | BOYER, Laurence | |
dc.contributor.author | DURAND, Olivier | |
hal.structure.identifier | Laboratoire Ondes et Matière d'Aquitaine [LOMA] | |
hal.structure.identifier | Direction de Recherche Technologique (CEA) [DRT (CEA)] | |
dc.contributor.author | ABRAHAM, Emmanuel | |
dc.date.created | 2021-10-18 | |
dc.date.issued | 2022 | |
dc.identifier.issn | 0955-2219 | |
dc.description.abstractEn | Dielectric 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.iso | en | |
dc.publisher | Elsevier | |
dc.subject.en | Porosity evaluation | |
dc.subject.en | aluminum oxide Al 2 O 3 | |
dc.subject.en | ceramics | |
dc.subject.en | non-destructive evaluation | |
dc.subject.en | dielectric properties | |
dc.subject.en | terahertz time-domain spectroscopy | |
dc.title.en | Non-destructive evaluation of ceramic porosity using terahertz time-domain spectroscopy | |
dc.type | Article de revue | |
dc.identifier.doi | 10.1016/j.jeurceramsoc.2021.10.026 | |
dc.subject.hal | Chimie/Matériaux | |
dc.subject.hal | Physique [physics]/Physique [physics]/Instrumentations et Détecteurs [physics.ins-det] | |
bordeaux.journal | Journal of the European Ceramic Society | |
bordeaux.page | 525-533 | |
bordeaux.volume | 42 | |
bordeaux.issue | 2 | |
bordeaux.peerReviewed | oui | |
hal.identifier | hal-03525103 | |
hal.version | 1 | |
hal.popular | non | |
hal.audience | Internationale | |
hal.origin.link | https://hal.archives-ouvertes.fr//hal-03525103v1 | |
bordeaux.COinS | ctx_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 |
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