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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Raman spectroscopy quantifying the composition of stuffed beta-quartz derivative phases in lithium aluminosilicate glass-ceramics
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Raman spectroscopy quantifying the composition of stuffed beta-quartz derivative phases in lithium aluminosilicate glass-ceramics

机译：拉曼光谱法量化硅铝酸锂玻璃陶瓷中填充的β-石英衍生物相的组成

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摘要

Using Raman spectroscopy method, the attempt was made to quantify the SiO2 content in stuffed beta-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 degrees 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 beta-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 beta-quartz structure. It was found that the linear dependence of the unit cell's volume of beta-quartz derivative phases on the SiO2 content can be used for quantifying the SiO2 content in the crystalline phase with p-quartz structure as well. The results obtained by both independent methods are in a good agreement.
机译：使用拉曼光谱法，试图量化在铝硅酸锂玻璃陶瓷中沉淀的填充β-石英衍生物相中的SiO2含量。初始玻璃是通过常规的熔融淬火技术制备的，在660-850摄氏度的温度范围内进行退火和热处理。通过X射线衍射（XRD）分析确定晶胞参数。在拉曼光谱中，确定了一系列填充β-石英衍生物相x（LiAl）（1-x）SiO2的复杂混合晶体的单模行为。结果表明，高频拉曼能带频率与SiO2含量的线性关系可用于定量β-石英结构晶相中的SiO2浓度。已经发现，β-石英衍生物相的晶胞体积对SiO 2含量的线性依赖性也可以用于定量具有p-石英结构的结晶相中的SiO 2含量。通过两种独立方法获得的结果吻合良好。

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