原子能科学技术2012，Vol.46Issue(6)：734-739,6.
用于冲击波延时的密度梯度气凝胶飞片靶的制备及表征
Fabrication and Characterization of Graded Density Aerogel Flyer Target for Extending Loading Time of Laser-Driven Shock Wave
摘要
Abstract
The method about fabrication and characterization of graded density aerogel flyer target for extending loading time in laser-driven equation of state (EOS) experiment was introduced. The preparation of the target involved the synthesis of organic resorcinol-formaldehyde (RF) aerogel. RF hydrosol was prepared via sol-gel process with resorcinol-iormaldehyde-water system and catalyzed by sodium carbonate. Also, an airtight micro-mold was used in layer-by-layer gelation process. After gelation, the RF wet gel was demoulded in ethanol condition and substituted with ethanol one time per day for three days to remove the residual solution. The treated RF wet gel was converted to RF aerogel via vacuum drying after the residual solution was completely removed. The Fourier transform infrared spectroscopy, field emission scanning electron microscopy (FESEM),X-ray phase contrast imaging instrument and surface area and porosity analyzer were used to characterize the composition, morphology, density, interlayer coupling and microstructure of the flyer target. A four-layer target with total thickness of about 120 μand density of about 400-1 200 mg/cm3 was obtained and characterized in the experiment.关键词
状态方程/冲击波延时/密度梯度/气凝胶Key words
equation of states extending loading time of laser-driven shock waves graded density/ aerogel分类
数理科学引用本文复制引用
沈洋,张志华,李宇农,周斌,杜艾,朱秀榕,陈珂,吴培弟,吴广明,沈军,倪星元..用于冲击波延时的密度梯度气凝胶飞片靶的制备及表征[J].原子能科学技术,2012,46(6):734-739,6.基金项目
国家自然科学基金资助项目(51102184,51172163) （51102184,51172163）
863计划资助项目 （）
教育部博士点基金资助项目(20090072110047,20100072110054) （20090072110047,20100072110054）
国家科技支撑计划资助项目(2009BAC62B02) （2009BAC62B02）
同济大学青年优秀人才培养行动计划资助项目(2010KJ068) （2010KJ068）
