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International Journal of Energetic Materials and Chemical Propulsion

Erscheint 6 Ausgaben pro Jahr

ISSN Druckformat: 2150-766X

ISSN Online: 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

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SYNTHESIS OF NANO-SIZED RDX USING AN ULTRA-HIGH-PRESSURE RESS SYSTEM

Volumen 7, Ausgabe 1, 2008, pp. 39-54
DOI: 10.1615/IntJEnergeticMaterialsChemProp.v7.i1.30
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ABSTRAKT

It is advantageous to synthesize nano-sized energetic ingredients for the development of insensitive munitions. Some parameters of crystalline particles that affect the thermal and shock sensitivity are size and shape of crystalline particles, particle size distribution, and defects in individual crystals. Any internal cavities in the crystalline structure are subjected to initiation by external stimuli. Shock or mechanical impacts to a crystalline particle with defects can cause hot spot generation, which leads to initiation of ignition. One of the methods under present investigation to produce nano-sized particles is the rapid expansion of a supercritical solution (RESS) process. In this study, an ultra-high-pressure (up to 207 MPa) RESS system has been developed and tested. Even though collection of nano-sized particles represents a major challenge, an efficient particle recovery system with the formation of dry ice from the supercritical CO2 solution has been successfully developed. Collected RDX samples have been measured by dynamic light scattering (DLS) technique to determine particle size distributions. Examination of crystalline structure and particle size were performed by using scanning electron microscopy (SEM). Particles sizes from 93 to 509 nm were obtained, depending upon the nozzle size, upstream temperature, and pressure controlled under the expansion process.

REFERENZEN
  1. Miller, P.J., Coffey, C.S., and DeVost, V.F., Heating in Crystalline Solids Due to Rapid Deformation.

  2. Armstrong, R.W., Coffey, C.S., DeVost, V.F., and Elban W.L., Crystal Size Dependence for Impact Initiation of Cyclotrimethylenetrinitramine Explosive.

  3. Tom, J.W. and Debenedetti P.G., Particle Formation with Supercritical Fluids-A Review.

  4. Jung, J. and Perrut, M., Particle Design Using Supercritical Fluids: Literature and Patent Survey.

  5. Morris, J.B., Solubility of RDX in Dense Carbon Dioxide at Temperatures between 303K and 353K.

  6. Debenedetti, P.G., Homogeneous Nucleation in Supercritical Fluids.

  7. Stepanov, V., Krasnoperov, L.N., Elkina, I.B., and Zhang, X., Production of Nanocrystalline RDX by Rapid Expansion of Supercritical Solutions.

  8. Ashkenas, H. and Sherman, F.S., The Structure and Utilization of Supersonic Free Jets in Low Density Wind Tunnels.

  9. Bier, K. and Schmidt, B., Zur Form der Verdichtungsstõβe in frei expandierenden Gasstrahlen.

  10. Murphy, H., The Effects of Source Geometry on Free Jet Expansions.

REFERENZIERT VON
  1. Makarem S., Fakhari A. R., Mohammadi A. A., Electro-organic synthesis of nanosized particles of 3-hydroxy-3-(1H-indol-3-yl)indolin-2-one derivatives, Monatshefte für Chemie - Chemical Monthly, 143, 8, 2012. Crossref

  2. Nikoofar Kobra, Ghanbari Khadijeh, A domino electro-oxidative synthesis of 3,3′-bis(indolyl)methane nanoparticles, Monatshefte für Chemie - Chemical Monthly, 146, 12, 2015. Crossref

  3. Yan Qi-Long, Zhao Feng-Qi, Kuo Kenneth K., Zhang Xiao-Hong, Zeman Svatopluk, DeLuca Luigi T., Catalytic effects of nano additives on decomposition and combustion of RDX-, HMX-, and AP-based energetic compositions, Progress in Energy and Combustion Science, 57, 2016. Crossref

  4. Pessi Jenni, Lassila Ilkka, Meriläinen Antti, Räikkönen Heikki, Hæggström Edward, Yliruusi Jouko, Controlled Expansion of Supercritical Solution: A Robust Method to Produce Pure Drug Nanoparticles With Narrow Size-Distribution, Journal of Pharmaceutical Sciences, 105, 8, 2016. Crossref

  5. Vara Jalpa A., Dave Pragnesh N., Ram Vijay R., Nanomaterials as modifier for composite solid propellants, Nano-Structures & Nano-Objects, 20, 2019. Crossref

  6. Makarem Somayeh, Fakhari Ali Reza, Mohammadi Ali Asghar, Electro-Organic Synthesis of Nanosized Particles of 2-Amino-pyranes, Industrial & Engineering Chemistry Research, 51, 5, 2012. Crossref

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