Abstract
Lithium aluminum silicate powders in the form of β-spodumene were synthesized through sol–gel technique by mixing boehmite sol, silica sol and lithium salt. The gel and oxide powders were characterized by thermogravimetry, differential thermal analysis (DTA), X-ray diffraction (XRD), Fourier transformed infrared (FTIR) spectroscopy and scanning electron microscopy. DTA, XRD and FTIR results confirmed that crystallization of β-spodumene took place at about 800 °C. The tiny crystallites with average size less than 1 μm appeared when the gel powders were sintered at 800 °C. A substantial increase of the crystal grain size was observed with increasing sintering temperatures.
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This work is supported by program of excellent Team in Harbin Institute of Technology and National Natural Science Fundation of China (Grant No. 50672018) and National High-tech R&D Program (863 Program) (Grant No. 2007AA03Z340).
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Xia, L., Wen, G., Song, L. et al. Sol–gel synthesis and crystallization behaviour of β-spodumene. J Sol-Gel Sci Technol 52, 134–139 (2009). https://doi.org/10.1007/s10971-009-2001-7
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DOI: https://doi.org/10.1007/s10971-009-2001-7