On-site Raman spectroscopic analysis of Kütahya fritwares
Version of Record online: 27 JUN 2005
Copyright © 2005 John Wiley & Sons, Ltd.
Journal of Raman Spectroscopy
Volume 36, Issue 9, pages 857–863, September 2005
How to Cite
Colomban, P., de Laveaucoupet, R. and Milande, V. (2005), On-site Raman spectroscopic analysis of Kütahya fritwares. J. Raman Spectrosc., 36: 857–863. doi: 10.1002/jrs.1372
- Issue online: 24 AUG 2005
- Version of Record online: 27 JUN 2005
- Manuscript Accepted: 4 APR 2005
- Manuscript Received: 11 FEB 2005
On-site Raman analyses were performed at the Musée National de Céramique, Sèvres, France, on Kütahya pottery. A comparison was made with Iznik and Safavid productions. Two Raman signatures of silicate glazes (with an index of polymerization ∼0.6–1 indicating a lead silicate composition, with characteristic SiO stretching doublet at ∼985 and 1050 cm−1) were recognized and associated with the colour. Considering the peak position and the ratios of Qn (n = 1, 2 and 3) components allows the classification of the different productions. Differentiation between Kütahya and Iznik Ottoman pottery is straightforward from the centres of gravity. The procedure is also efficient for discriminating between early and late Iznik production. The white colour arises from a α-quartz slip. Although Iznik production does not fluctuate, as a consequence of the nakkashame regulation, the composition/nanostructure dispersion of Kûtahya wares is large and different families can be recognized. The non-stoichiometric character of the spinel-type materials used to draw the black lines appears to be at the origin of the sharpness of the depicted figures. Copyright © 2005 John Wiley & Sons, Ltd.