摘要
干凝胶法是我国目前制备惯性约束聚变(ICF)靶用空心玻璃微球(HGM)的主要方法,其制备的HGM可在较宽的范围内满足ICF物理实验的要求。从干凝胶粒子/微球的溶胶-凝胶法制备技术和HGM的炉内成球原理出发,系统综述了近三十年来ICF靶用HGM干凝胶法制备技术研究的相关报道,分析总结了干凝胶法制备技术在HGM成分设计、元素掺杂、直径及球形度、壁厚及均匀性、耐压强度、渗透性能、表面粗糙度、性能一致性等方面的技术现状及难点,对干凝胶法制备HGM技术的瓶颈性问题及可能的解决方案进行了讨论。
Sol-gel technology has been applied with considerable success in the production of high quality hollow glass microspheres （HGMs） for inertial confinement fusion （ICF） research in China. The specifications of HGMs, such as glass composition, diameter, wall thickness, sphericity, wall thickness uniformity, surface finish, strength and gas permeability, must meet the stringent requirements imposed by ICF targets. Meeting all of these sometimes conflicting specifications has been the driving force of the research in the fabrication of HGMs for ICF target. In this work, various technologies used for fabricating high quality HGMs were compared in terms of their advantages and disadvantages, and the basic principles of the preparation of dried-gel particles/microspheres by sol-gel technology and the transformation process from the dried gel particles/microspheres to glass shells were further summarized. The progress in the fabrication of HGMs for ICF targets by dried-gel method over the past thirty years was presented. An overview of advances and technical bottlenecks in the control of glass composition, diagnostic element doping, diameter, wall thickness, surface finish, strength, gas permeability and batch uniformity were reviewed. Finally, the future research needs of producing HGMs for ICF targets by sol-gel technology and their possible solutions were also discussed.
出处
《化工学报》
EI
CAS
CSCD
北大核心
2013年第10期3477-3492,共16页
CIESC Journal
基金
国防科技重点实验室基金项目(9140C6806030908)~~
关键词
干凝胶法
空心玻璃微球
ICF
靶制备
研究进展
sol-gel technology
hollow glass microsphere
ICF
target fabrication
research progress
