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Spectrochim Acta A Mol Biomol Spectrosc. 2014 Dec 10;133:112-8. doi: 10.1016/j.saa.2014.04.188. Epub 2014 May 27.

Spectroscopic characterization of recently excavated archaeological potsherds from Tamilnadu, India with multi-analytical approach.

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Department of Physics, Shri Krishnaa College of Engineering & Technology, Mannadipet, Puducherry 605501, India.
Post Graduate and Research Department of Physics, Government Arts College, Tiruvanamalai 606603, India. Electronic address:
Department of Physics, SSN College of Engineering, Kalavakkam, Chennai 603110, India.
Department of Physics, Global Institute of Engineering & Technology, Vellore 632509, Tamil Nadu, India.
Department of History, School of Social Sciences & International Studies, Pondicherry University, Kalapet, Puducherry 605014, India.


A combined analytical study of potsherds excavated from different archaeological sites of Tamilnadu (Kavalapatti, Nattapuraki and Thamaraikulam villages), India are analyzed by spectroscopic techniques such as FTIR, X-ray diffraction, thermogravimetric analysis (TGA) and Scanning Electron Microscope (SEM) coupled with Energy Dispersive Spectrometer (EDS). FTIR and XRD techniques have been attempted to characterize the mineralogical composition, firing temperature and firing conditions of the archaeological potsherds. Thermogravimetric analysis (TGA) is the complementary study to estimate the firing temperature from characteristic thermal reactions in potsherds under controlled firing in inert gas atmosphere. Further, Scanning Electron Microscopy (SEM) equipped and coupled with an Energy Dispersive Spectrometer (EDS) to analyze internal morphology and chemical composition of the potsherds was used. From the results of the above techniques, the firing temperatures of potsherds were found to be greater than 650°C.


Archaeological potsherds; FT-IR; Firing temperature; SEM–EDS; TG-DTA; XRD

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