Melt-casting of Si-Al-Y-O glasses and glass-ceramics by combustion synthesis under high gravity

作者：Liu, Guanghua^*; Li, Jiangtao; He, Bin

来源：Journal of Non-Crystalline Solids, 2011, 357(7): 1764-1767.

DOI：10.1016/j.jnoncrysol.2010.12.079

• Glass
• Glass-ceramics
• Combustion synthesis
• High gravity
• Melt-casting

Si-Al-Y-O glasses and glass-ceramics were prepared via melt-casting by combustion synthesis under high gravity. The phase assemblage and microstructure of the cast products strongly depended on the content of SiO(2) and the additive ZrO(2) or La(2)O(3) in the starting compositions. With increasing content of SiO(2), the glass-forming ability of the melt was enhanced. The additive ZrO(2) was not dissolved into the glass and inclined to crystallize, but La(2)O(3) was inclined to remain in the glass matrix instead of precipitation. With a short processing period and lower energy consumption, combustion synthesis under high gravity can offer a new approach to fast fabrication of glass and glass-ceramic materials.

• 出版日期2011-4-1
• 单位中国科学院理化技术研究所