chu guang, tang yong-jian, luo jiang-shan, et al. Preparation synthesis of nanocrystalline copper target material for ICF experiments[J]. High Power Laser and Particle Beams, 2005, 17.
Citation:
chu guang, tang yong-jian, luo jiang-shan, et al. Preparation synthesis of nanocrystalline copper target material for ICF experiments[J]. High Power Laser and Particle Beams, 2005, 17.
chu guang, tang yong-jian, luo jiang-shan, et al. Preparation synthesis of nanocrystalline copper target material for ICF experiments[J]. High Power Laser and Particle Beams, 2005, 17.
Citation:
chu guang, tang yong-jian, luo jiang-shan, et al. Preparation synthesis of nanocrystalline copper target material for ICF experiments[J]. High Power Laser and Particle Beams, 2005, 17.
Copper nano-particles were prepared by flow-levitation method and compacted for 40 min under pressure of 1.5 GPa by cold pressing method . The pressing process was studied well under 25 ℃ and inert gas protection. The relative density and the microhardess of a specimen were 97% and 1.85 GPa, respectivity. XRD analysis showed that the average grain size of the specimens was 20 nm. The positron annihilation spectroscopy (PAS) results showed that the size and amount of the vacancies and microvoids were similar to those of the nanocrystalline Cu prepaered by inert gas condensation method (IGC) but more large voids. The simulation experiment of inertial confinement fusion indicated that the efficiency of Kα-ray conversed from laser with nanocrystalline Cu was 5 times higher than that of coars
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