FTIR analysis and 3D restoration of Transylvanian popular pottery from the XVI-XVIII centuries

Abstract The Fourier transform infrared spectra of Transylvanian pottery fragments from XVI-XVIII centuries and the identification of their vibrational frequencies and curve fitting of the 1400–800 cm −1 spectral massif have allowed to determine the chemical and mineralogical composition of the fragments and their firing temperature. A pottery vessel was restored in a virtual environment by using 3D laser scanning and computer aided design software. An additive manufacturing solution was used for 3D printing of the inner pottery support to reassemble the fragments in order to assist classical restoration activities. The digital restoration allows for correct spatial positioning of the ceramic vessel fragments and 3D modelling of the vessel shape using the profile obtained after matching the fragments.