摘要
A new idea was proposed for solving the problems caused by different hydrolysis rate of alkoxides in Sol-Gel processes. The new idea is that the highest-hydrolysis-rate alkoxide is supposed to be hydrolysized slowly and homogeneously at first under a controllable condition, and meanwhile, its hydrolysis intermediates polymerize with lower-hydrolysis-rate alkoxides. Based on this new idea, a Sol-Gel process with lower cost and a simple procedure was developed for synthesizing BAS glass-ceramics. XRD, DTA and Laser Raman Spectrum were used to detect the molecular structures and crystallization behaviors of a gel and a gel-derived glass. The as-prepared gel is amorphous with (Si, Al)-O network structures. The temperature of maximum-nucleation-rate of the amorphous is about 938°C, and the temperature of maximum-crystal-growth is about 1164°C.
源语言 | 英语 |
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页(从-至) | 12 |
页数 | 1 |
期刊 | Wuji Cailiao Xuebao/Journal of Inorganic Materials |
卷 | 13 |
期 | 1 |
出版状态 | 已出版 - 1998 |