Application of focused ion beam-field emission scanning electron microscopy-X-ray microanalysis in the study of the surface alterations of archaeological tin-glazed ceramics

Autor: Domenech Carbo, Mª Teresa, Mai-Cerovaz, Carolina, Doménech-Carbó, Antonio
Rok vydání: 2022
Předmět:
Zdroj: Ceramics International. 48:14067-14075
ISSN: 0272-8842
DOI: 10.1016/j.ceramint.2022.01.292
Popis: [EN] The historical evolution of tin-glazed ceramics is a subject that has attracted the attention of many scientists and, consequently, abundant archaeometrical studies can be found in the specialized literature. Nevertheless, a lesser number of studies aimed at the characterization of the alterations undergone by archaeological glazes has been reported. This work describes some unusual alteration processes found in tin-glazes depending on the environmental conditions surrounding the piece during centuries. For this purpose, focused ion beam-field emission scanning electron microscopy-X-ray microanalysis (FIB-FESEM-EDX), an advanced instrumental technique for surface analysis at the nanoscale, has been used for the first time, complementarily to optical microscopy (OM), FESEM-EDX and Fourier transform Infrared spectroscopy (FTIR). In the buried glaze the nanostructure of the outer lamellar corrosion layer due to humidity-dryness cycles is described. Unusual and selective erosion of the glaze matrix due to the silicification metabolism of diatoms is observed in a submarine glaze. A nanometric outer corrosion layer formed by precipitated corrosion products and unspecific organic matter that has been partially degraded to lead and calcium oxalates is found in a glazed tile subjected to an atmospheric environment.
This work was supported by the Spanish R+D+I Project PID2020113022GB-I00 supported by MCIN/AEI/10.13039/501100011033. The authors wish to also thank Mr. Manuel Planes, Dr. Jose Luis Moya, and Alicia Nuez-Inbernon, technical supervisors of the Electron Microscopy Service of the Universitat Politecnica de Valencia. Authors also aknowledge the support by Mr Joaquin Bolufer-Marques, Director of the Museo Arqueologico y Etnografico Soler Blasco of X`abia (Spain) and Mr. Josep P ' erez-Camps director of the Museo de Cer ' amica de Manises (Spain).
Databáze: OpenAIRE
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