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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 AND CHARACTERIZATION OF COATED ENERGETIC MATERIALS USING A RESS-N SYSTEM

Volumen 9, Ausgabe 2, 2010, pp. 133-146
DOI: 10.1615/IntJEnergeticMaterialsChemProp.v9.i2.20
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ABSTRAKT

Coating nano-sized aluminum particles with an energetic material such as RDX has several unique advantages. The RDX coating can protect the aluminum surface from developing a growing oxide coating and can potentially improve performance by bringing the two components into closer contact than would conventional mixing. In this investigation, a custom-built rapid expansion of a supercritical solution with a nonsolvent (RESS-N) system was modified to coat nano-sized aluminum (ALEX®) particles. Particles were coated by entraining them in a solution of supercritical CO2 and RDX and then rapidly expanding the mixture through a nozzle. To achieve this, a particle entrainment vessel introduced ALEX® particles into the flow and the suspension was flown through a micro-orifice sapphire nozzle. The rapid expansion of the supercritical solution and the addition of ALEX® particles as nucleation sites created favorable conditions for the RDX to coat the ALEX® particles by heterogeneous nucleation. Tests were run at pre-expansion pressures up to 34.5 MPa and pre-expansion temperatures up to 353 K. Particles were successfully coated with RDX and collected by expanding the CO2 until it formed dry ice, which allowed for gravimetric collection. The successful coating of the particles was confirmed by field emission scanning electron microscopy (FE-SEM). Environmental scanning electron microscopy (ESEM) with energy disperse spectroscopy (EDS) was used to confirm that only RDX and ALEX® particles were collected and that the coating material was truly RDX.

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