无机材料学报2013，Vol.28Issue(7)：780-784,5.DOI:10.3724/SP.J.1077.2013.12592
超重力熔铸Y2O3-Al2O3-SiO2玻璃的晶化行为研究
Investigation on Crystallization Behavior of Y2O3-Al2O3-SiO2 Glass Prepared by High-gravity Combustion Synthesis
摘要
Abstract
The crystallization behavior of Y2O3-Al2O3-SiO2 glass prepared by high-gravity combustion synthesis was investigated by isothermal annealing experiments.The effect of annealing condition on the crystallization behavior of the glass was discussed according to the Y2O3-Al2O3-SiO2 ternary phase diagram.From experimental results,the crystallization behavior of the glass strongly depended on the annealing temperature and the content of SiO2.After being annealed at 1050℃,the sample showed a graded phase distribution along the high-gravity direction,consisting of Al6Si2O13 glass-ceramic,pure glass and x-Al2O3 glass-ceramic.At annealing temperature of 1100℃,Y3Al5O12 and Y2Si2O7 were precipitated as the major crystalline phases.When the annealing temperature further increased to 1200℃,the predominant crystalline phase was Y3Al5O12.The research provides a possible way to prepare Y2O3-Al2O3-SiO2 glass-ceramics by integrating high-gravity combustion synthesis with post annealing treatment.关键词
超重力熔铸/YAS玻璃/退火/晶化Key words
high-gravity combustion synthesis/Y2O3-Al2O3-SiO2 glass/annealing/crystallization分类
通用工业技术引用本文复制引用
杨增朝,刘光华,徐利华,李江涛,郭世斌..超重力熔铸Y2O3-Al2O3-SiO2玻璃的晶化行为研究[J].无机材料学报,2013,28(7):780-784,5.基金项目
国家自然科学基金(50932006,51002163) （50932006,51002163）
北京市自然科学基金(2112043).National Natural Science Foundation of China(50932006,51002163) （2112043）
Beijing Natural Science Foundation(2112043) （2112043）
