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Monitoring the mineralogical and porosity transformations in ceramics due to salt whitening agent in modern Hebron ceramics: the contribution of non-invasive methods

hal.structure.identifierArchéosciences Bordeaux
hal.structure.identifierCentre d'études Alexandrines [CEALEX]
dc.contributor.authorCANTIN, Nadia
hal.structure.identifierArchéosciences Bordeaux
dc.contributor.authorTEODORESCU, Laura
hal.structure.identifierDe la Préhistoire à l'Actuel : Culture, Environnement et Anthropologie [PACEA]
dc.contributor.authorLEDEVIN, Ronan
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorPIGOT, Léa
hal.structure.identifierArchéosciences Bordeaux
dc.contributor.authorBEN AMARA, Ayed
hal.structure.identifierArchéosciences Bordeaux
dc.contributor.authorMOUNIER, Aurélie
hal.structure.identifierTechnologie et Ethnologie des Mondes Préhistoriques [TEMPS]
dc.contributor.authorROUX, Valentine
dc.date.conference2024-05-15
dc.description.abstractEnValentine Roux's observations of working potters in Hebron, in the West Bank, were the starting point for our study. This field survey revealed that salt was introduced to the fabric (?) in the form of table salt, with the aim of producing white ceramics. An initial study (Teodorescu et al., 2022) was conducted to understand and explain this phenomenon through the characterisation of the available material: clay raw materials and ceramics from the chaînes opératoires. Beyond the apparent whiteness, the potters also seemed to emphasise other properties, such as porosity. We therefore looked at how salt affects the properties of the material to meet the potters' aesthetic and functional criteria.For that, a selection of raw materials up to the finished product, particularly at the Hebron site were sampled. A second set of data from materials manufactured in the laboratory, from the source clays used by Hebron potters, was produced by controlling the salt concentration on the one hand, and the firing temperature on the other.The aim of this study was both to develop non-destructive tools for data acquisition in ceramology and to explore possible applications. Thus, we sought to estimate firing temperatures from the spectral response obtained in the near-infrared (900-2500 nm) and visible range (400-800 nm). The measurements were carried out using a hyperspectral camera - SPECIM equipment (HSI VNIR). Simultaneously, the porosity of the material was explored in the least invasive way possible using X-ray micro-tomography. The aim was to monitor the role of the temperature and salt concentration parameters on the development of the pore system and to correlate the responses obtained with the functional properties of the object. In addition, the results suggest that hyperspectral imaging is a promising tool for studying ancient ceramics, particularly in the construction of firing references.
dc.language.isoen
dc.title.enMonitoring the mineralogical and porosity transformations in ceramics due to salt whitening agent in modern Hebron ceramics: the contribution of non-invasive methods
dc.typeCommunication dans un congrès
dc.subject.halSciences de l'Homme et Société
dc.subject.halPhysique [physics]
bordeaux.conference.title4th international congress on archaeological sciences in the Eastern Mediterranean and the Middle East
bordeaux.countryCY
bordeaux.conference.cityNicosia
bordeaux.peerReviewedoui
hal.identifierhal-05039416
hal.version1
hal.invitednon
hal.proceedingsnon
hal.conference.end2024-04-18
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-05039416v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.au=CANTIN,%20Nadia&TEODORESCU,%20Laura&LEDEVIN,%20Ronan&PIGOT,%20L%C3%A9a&BEN%20AMARA,%20Ayed&rft.genre=unknown


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