Nano-Size Beta-spodumene Glass-ceramic Powders Synthesized by Sol-gel Route

摘要：

Beta-spodumene glass-ceramic powder was prepared by Sol-gel route. Tetraethyl orthosilicate (TOES), aluminum nitrate, lithium carbonate were used as starting materials. X-ray powder diffraction (XRD), thermal expansion coefficient (TEC), scanning electron microscope (SEM) and transmission electron microscope (TEM) were utilized to characterize the dried LAS gels and glass-ceramic blocks. The results suggest beta-spodumene is the only crystals phase in the prepared LAS glass-ceramics powder when sintering temperature is 950 ℃. The average particle size of the betaspodumene crystal is about 30 nm with a narrow size distribution both in prepared LAS glass-ceramics powder and block. The thermal expansion coefficient of moulding pressed blocky LAS glassceramics is lower than 0.6×10(-6)℃-1.

关键词： component Glass-ceramic LAS Thermal expansion property Sol-gel process Powder

作者: Zhuohao Xiao Wenyan Luo

作者单位: School of Materials Science and Engineering Jingdezhen Ceramic Institute Jingdezhen China School of Mechnical and Electronic Engineering Jingdezhen Ceramic Institute Jingdezhen China

会议类型: 国际会议

会议名称: 2010 International Conference on Nano Science and Technology(2010年IEEE纳米科技国际会议 ICNST2010)

会议地点: 成都

会议语种:英文

页码: 191-195

在线出版日期: 2010-12-17（万方平台首次上网日期，不代表论文的发表时间）