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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

Indexed in

BENEFITS OF THE RESOLV PROCESS IN FORMING POLYMER-COATED, ULTRAFINE RDX PARTICLES

Volumen 10, Ausgabe 6, 2011, pp. 455-468
DOI: 10.1615/IntJEnergeticMaterialsChemProp.2012005396
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ABSTRAKT

This paper investigates several benefits of using the rapid expansion of a supercritical solution into a liquid solvent (RESOLV) process to form stable, ultrafine RDX particles dispersed in a liquid medium. The first benefit of the RESOLV process is that polymer coatings involved in the process provide dispersion to prevent agglomeration of the RDX particles. This benefit is necessary because experimental evidence suggests uncoated particles exhibit instability toward agglomeration and computer code calculations using the software program STABIL were used to show that initially formed RDX particles grow twice as large in as little as 8 min if unprotected in aqueous suspension. Second, the sensitivity of polyvinylpyrrolidone (PVP)−coated particles produced through the RESOLV process was investigated. As an experimental control, acetone-recrystallized RDX was used for sensitivity testing as well. The ERL impact sensitivity of PVP-coated particles was 19 cm and 30 cm with a wide standard deviation for acetone-recrystallized RDX. The ABL friction sensitivity of the PVP-coated RDX was 521 lb and 355 lb for the recrystallized RDX. Neither the PVP-coated RDX nor the acetone-recrystallized RDX particles initiate when subjected to a 0.25 J spark stimulus in the NAWC ESD sensitivity test. Finally, initial investigations were made into using energetic polymers as a potential dispersant with the RESOLV process. The solubility of the energetic polymer poly-3-(nitrato-oxetane) (PNO) was quantified in chloroform. The solubility was determined to be ~15 mg PNO/g solution. This solubility is approximately 100 times higher than the solubility of RDX in chloroform. Therefore, PNO and chloroform solutions could be used to coat and stabilize newly formed nanosized RDX particles.

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