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International Journal of Energetic Materials and Chemical Propulsion

Publication de 6  numéros par an

ISSN Imprimer: 2150-766X

ISSN En ligne: 2150-7678

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 0.7 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 0.7 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.1 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00016 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.18 SJR: 0.313 SNIP: 0.6 CiteScore™:: 1.6 H-Index: 16

Indexed in

IGNITION CHARACTERISTICS OF NANOTHERMITE SYSTEMS

Volume 7, Numéro 1, 2008, pp. 73-86
DOI: 10.1615/IntJEnergeticMaterialsChemProp.v7.i1.50
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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).

RÉFÉRENCES
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  2. 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).

  3. Bulian, C.J., Kerr, T.T., and Puszynski, J.A., Ignition Studies of Aluminum and Metal Oxide Nanopowders.

  4. 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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  9. 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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  14. Puszynski, J.A., Bulian, C.J., and Swiatkiewicz, J.J., The Effect of Nanopowder Attributes on Reaction Mechanism and Ignition Sensitivity of Nanothemites.

  15. Kirk, R.E. and Othmer, D.F., Kirk-Othmer Encyclopedia of Chemical Technology, 4th Ed., Vol. 2.

  16. Touloukian, Y.S., Oxides and Their Solutions and Mixtures, Part I, Simple Oxygen Compounds and Their Mixtures.

  17. Touloukian, Y.S., Specific Heat, Non-Metallic Solids.

CITÉ PAR
  1. 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

  2. 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

  3. Puszynski Jan A., Processing and characterization of aluminum-based nanothermites, Journal of Thermal Analysis and Calorimetry, 96, 3, 2009. Crossref

  4. Polis Mateusz, Stolarczyk Agnieszka, Glosz Karolina, Jarosz Tomasz, Quo Vadis, Nanothermite? A Review of Recent Progress, Materials, 15, 9, 2022. Crossref

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