Research of the Reactivity Photoacoustic Characteristics of PETN and HNS Induced by Laser

Hui E Wang; Wei Zhang; Rui Qi Shen; Ying Hua Ye; Li Zhi Wu

doi:10.4028/www.scientific.net/AMM.423-426.479

Paper Titles

Effects of Alkali Metal Content and Sintering Temperature on the Structure and Electrical Properties of (Na_0.52K_0.48) _0.94+xLi_0.06-xNb_0.94Sb_0.06O₃Lead-Free Piezoelectric Ceramics
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Synthesis of Light Olefins from CO₂Hydrogenation on Fe/ZSM-5 Catalyst
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The Synthesis of Cadmium Sulfide and Cadmium Selenide Nanostructures
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Removal of Carbonyl Compounds in Diesel Exhaust Gas by Direct Non-Thermal Plasma
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Research of the Reactivity Photoacoustic Characteristics of PETN and HNS Induced by Laser
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The Efficient Thermal Management of Proton Exchange Membrane Fuel Cells
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Effect of Temperature on Decomposition of Magnesium Bicarbonate
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The Phase Change Study of High Titanium Slag during Heat Treatment
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Synthesis and Characterization of Thermoplastic Poly (ether-imide) Elastormer Based on Di-(4-Aminopheny)Methane-Pyromellitimide Unit
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 423-426Research of the Reactivity Photoacoustic...

Research of the Reactivity Photoacoustic Characteristics of PETN and HNS Induced by Laser

Abstract:

The reactivity photoacoustic technology was used to detect the laser induced photoacoustic spectroscopy characteristics of explosives (PETN and HNS). The results showed that: the reflectivity of pure PETN and HNS under laser irradiation was large and the photoacoustic signal was weak. After doping with carbon nanotubes (CNTs) and carbon black (CB), the reflectivity decreased. The photothermal conversion and the optical absorption coefficient rate increased and the photoacoustic signal enhanced. For the same sample, the intensity of the signal was proportional to the incident laser energy. For the same explosives and under the same doping amount, the photoacoustic signal of the CNTs doped sample is greater than that of the CB doped sample. For the same sample and the same dopant, the greater the amount of doping, the stronger the photoacoustic signal. There was optimum ignition energy. By using TG-DSC technology for thermal analysis of the samples, the results from the thermal analysis could explain the reactivity photoacoustic experiment.