Publication de 6 numéros par an
ISSN Imprimer: 2150-766X
ISSN En ligne: 2150-7678
Indexed in
IGNITION CHARACTERISTICS OF NANOTHERMITE SYSTEMS
RÉSUMÉ
Nanothermites are a class of materials that have been of much interest over the past ten years. Variations in methods of synthesis and processing have allowed these materials to be tailored to many different applications (e.g., percussion primers, electric matches, low energy ignition devices, etc.). These applications require wide ranges of reactive energy outputs, reaction rates, and ignition sensitivities. Appropriate characterization methods have been developed for mechanical impact, thermal, and electrostatic discharge sensitivities. This study presents an explanation of ignition delay times of an Al-Fe2O3 nanoenergetic mixture during exposure to a laser pulse as a function of a sample density. It was shown that the porosity of the energetic material significantly affects the ignition delay time due to the dependence on thermal properties as the function of that parameter. The effect of porosity on ignition delay was also investigated using a mathematical model. The model verified that an increase in porosity significantly decreases ignition delay time due to a much lower thermal conductivity and heat capacity of the sample. Electrostatic discharge sensitivity of the nanoenergetic materials was also investigated. This study determined that individual particle size and its morphology (both fuel and oxidizer), specific heat capacity of the nanothermite mixture, degree of consolidation, and processing methods can all have a significant effect on the sensitivity of the nanoenergetic materials to ignition by electrostatic discharge (ESD).
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Martin, J.A., Murray, A.S., Hollander, M.G., and Kung, H., Metastable Interstitial Composites.
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Son, S.F., Busse, J.R., Asay, B.W., Peterson, P.D., Mang, J.T., Bockmon, B., and Pantoya, M.L., Propagation Studies of Metastable Intermolecular Composites (MIC).
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Bulian, C.J., Kerr, T.T., and Puszynski, J.A., Ignition Studies of Aluminum and Metal Oxide Nanopowders.
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Son, S.F., Hiskey, H.L., Asay, B.W., Busse, J.R., Jorgensen, B.S., Bockmon, B., and Pantoya, M., Reaction Propagation Physics of Al/MoO3 Nanocomposite Thermites.
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Somasundaram, V., Bulian, C.J., and Puszynski, J.A., Investigation of Al-CuO Nanocomposite Reacting Systems.
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Perry, W.L., Smith, B.L., Bulian, C.J., Busse, J.R., Macomber, C.S., Dye, R.C., and Son, S.F., Nano-Scale Tungsten Oxides for Metastable Intermolecular Composites.
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Pusznski, J.A., Bulian, C.J., and Swiatkiewicz, J.J., Processing and Ignition Characteristics of Aluminum-Bismuth Trioxide Nanothermite System.
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Dorsett, H.E., Brousseau, P., and Cliff, H.E., The Influence of Ultrafine Aluminum upon Explosives Detonation.
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Pivkina, A., Frolov, Y., Zavyalov, S., Ivanov, D., Schoonman, J., Streletskii, A., and Butyagin, P., Ultra-Fine and Nanosized Oxidizers and Metals, Thermal Ignition Properties and Use in High Energetic Compositions.
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Miziolek, A.W., Nanoenergetics, An Emerging Technology Area of National Importance.
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Mench, M.M., Kuo, K.K., Yeh C.L., and Lu, Y.C., Comparison of Thermal Behavior of Regular and Ultra-Fine Aluminum Powders (Alex) Made From Plasma Explosion Process.
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Ono, R., Nifuku, M., Fujiwara, S., and Horiguchi, S., Gas Temperature of Capacitance Spark Discharge in Air.
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Carlson, R.S. and Wood, R.L., Development and Application of LEESA (Low Energy Electrostatic Sensitivity Apparatus.
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Puszynski, J.A., Bulian, C.J., and Swiatkiewicz, J.J., The Effect of Nanopowder Attributes on Reaction Mechanism and Ignition Sensitivity of Nanothemites.
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Kirk, R.E. and Othmer, D.F., Kirk-Othmer Encyclopedia of Chemical Technology, 4th Ed., Vol. 2.
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Touloukian, Y.S., Oxides and Their Solutions and Mixtures, Part I, Simple Oxygen Compounds and Their Mixtures.
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Touloukian, Y.S., Specific Heat, Non-Metallic Solids.
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Stacy S. C., Massad R. A., Pantoya M. L., Pre-ignition laser ablation of nanocomposite energetic materials, Journal of Applied Physics, 113, 21, 2013. Crossref
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Williams Rayon A., Patel Jaymin V., Dreizin Edward L., Ignition of Fully Dense Nanocomposite Thermite Powders by an Electric Spark, Journal of Propulsion and Power, 30, 3, 2014. Crossref
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Puszynski Jan A., Processing and characterization of aluminum-based nanothermites, Journal of Thermal Analysis and Calorimetry, 96, 3, 2009. Crossref
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Polis Mateusz, Stolarczyk Agnieszka, Glosz Karolina, Jarosz Tomasz, Quo Vadis, Nanothermite? A Review of Recent Progress, Materials, 15, 9, 2022. Crossref