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《Chinese Journal of Energetic Materials》 2014-06
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Structure Optimization and Velocity Measurement of Flyer in Laser Slapper Detonator

WANG Meng;QN Wen-zhi;FU Qiu-bo;HE Bi;JIANG Ming;Institute of Chemical Materials,CAEP;  
In order to increase the utilization efficiency of laser slapper detonator,it's necessary to improve and optimize the flyer structure.On the basis structure of flyer,the C/Al/Al_2O_3 /Al multi-flyers were prepared by the magnetron sputtering,and the performances of flyers were studied by scanning electron microscope.Taking advantage of photonic dopper velocimetry(PDV),it is found that the accelerating processes of flyers with different parameters are not same,and multi-flyer with the 0.05/0.7/0.7/20.0 μm thickness 1.0 mm diameter reaches a maximum velocity of 2301 m · s~(-1).C ombined with the analysis of physical properties,the influence of each material used in multi-flyers were discussed.Results show that the velocity of multi-flyer is influenced by reflectivity,vaporization enthalpy and thermal diffusivity of graphite layer,as well as the compactness,ionization energy and thermal conductivity of alumina layer.The accelerating time of multi-flyer is determined by the physical properties of thermal conductivity of graphite layer.
【Fund】: 中国工程物理研究院化材所青年人才培养基金(QNRC-201303)
【CateGory Index】: TQ565.2
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【Citations】
Chinese Journal Full-text Database 2 Hits
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2 WANG Meng;HE Bi;JIANG Ming;Institute of Chemical Materials,CAEP;;Review on Key Technologies of Laser-driven Miniflyer System[J];Chinese Journal of Energetic Materials;2013-04
【Co-citations】
Chinese Journal Full-text Database 4 Hits
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4 Zhou Qiang;Wang Junbo;Qiu Rong;Ren Huan;Tian Runni;Yang Yongjia;Jiang Yong;Joint Laboratory for Extreme Conditions Matter Properties,Southwest University of Science and Technology and Research Center of Laser Fusion,CAEP;;Ultrafast diagnosis of shock wave propagation in air and fused silica interface[J];High Power Laser and Particle Beams;2014-01
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