摘要
研究了液滴发制备的玻璃微球表面受侵蚀后对微球表面形貌、耐外压能力和气体渗透系数的影响。研究表明,玻璃微球表面受侵蚀后,表面出现斑点,最大斑点直径达到25μm。微球的杨氏模量由原来的54GPa下降到39GPa,平均耐外压强度下降约28%。微球在室温条件下对D2的平均气体渗透系数由原来的1.1×10-21mol·m-1·s-1·Pa-1增加到8.0×10-20mol·m-1·s-1·Pa-1,平均增加了约70倍,保气半寿命由147d降低到2d。文中分析了产生原因,主要是玻璃球壳中碱金属离子扩散和表面与水反应的结果。
This paper focused on the effects of surface erosion on morphology, buckling strength and permeability of hollow glass microspheres （HGM） which served as inertial confinement fusion （ICF） target. The primary experiments show that the spots on the outer surface grew as much as 25 μm in size after HGM being eroded. The Yong＇s modular decreased from 54GPa to 39GPa. The deuterium permeability increased from 1.1 × 10^-21mol·m^-1·s^-1 · Pa^-1 to 8.0 × 10^-20mol·m^-1·s^-1·pa^-1 in room temperature and the average depressurization half-life for deuterium retention decreased from 147 days to 2 days.
出处
《硅酸盐通报》
CAS
CSCD
北大核心
2006年第6期172-175,共4页
Bulletin of the Chinese Ceramic Society
基金
国家863计划项目资助课题(No.0344050)
