Raman spectroscopy quantifying the composition of stuffed β-quartz derivative phases in lithium aluminosilicate glass-ceramics

• Published in: Journal of non-crystalline solids 2008-11, Vol.354 (45-46), p.4932-4939
• Main Authors: Alekseeva, I., Dymshits, O., Ermakov, V., Zhilin, A., Petrov, V., Tsenter, M.
• Format: Article
• Language: English
• Subjects: Aluminosilicates; Crystallization; Glass ceramics; Nanocrystals; Raman spectroscopy; Titanate; X-ray diffraction
• ISSN: 0022-3093; 1873-4812
• DOI: 10.1016/j.jnoncrysol.2008.07.016

Using Raman spectroscopy method, the attempt was made to quantify the SiO2 content in stuffed β-quartz derivative phases precipitated in lithium aluminosilicate glass-ceramics. The initial glasses were prepared by a conventional melt quenching technique, annealed and heat-treated in a temperature range of 660–850°C. The unit-cell parameters were determined by X-ray diffraction (XRD) analysis. In Raman spectra, the one-mode behavior of complex mixed crystals of a series of stuffed β-quartz derivative phases x(LiAl)(1−x)SiO2 was determined. It was demonstrated that the linear dependence of the frequency of the high-frequency Raman band with SiO2 content can be used for quantifying the SiO2 concentration in the crystalline phase with β-quartz structure. It was found that the linear dependence of the unit cell’s volume of β-quartz derivative phases on the SiO2 content can be used for quantifying the SiO2 content in the crystalline phase with β-quartz structure as well. The results obtained by both independent methods are in a good agreement.