The results of a study of the use of non-destructive contactless methods of optical spectroscopy - registration of diffuse reflectance spectra in the UV-VIS-NIR range and photoluminescence for the identification of porcelain products are presented. According to the color characteristics and the list of optically active luminescence centers (OACL), the porcelain products were graded according to the composition and state of the redox medium during firing. It is shown that the chromaticity of porcelain can be controlled by the combination and ratio of the intensities of the centers of color and luminescence. A decrease in the intensity of the OACL Fe 3+ band is mainly associated with a change in the coordination of iron Fe 3 + O 4 & # 8594; Fe 3+ O 6 in bone china
Cand. tech. sciences R.A.PLATOVA 1 (This email address is being protected from spambots. You need JavaScript enabled to view it.), d- p tech. Sci. Yu. T. PLATOV 1 (This email address is being protected from spambots. You need JavaScript enabled to view it.), Cand. geol.-mineral. Sciences V.A.RASSULOV 2 (e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.), Cand. tech. sciences T. STOIKOVA 3 (This email address is being protected from spambots. You need JavaScript enabled to view it.)
; 1 FGBOU VO & # 171; Russian University of Economics. G. V. Plekhanov & # 187; (Moscow, Russia)
2 FGBU & # 171; All-Russian Institute of Mineral Resources named after N. M. Fedorovsky & # 187; (Moscow, Russia)
3 University of Economics (Bulgaria, Varna)
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