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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

FUEL-RICH ALUMINUM−METAL FLUORIDE THERMITES

Volume 16, Numéro 1, 2017, pp. 81-101
DOI: 10.1615/IntJEnergeticMaterialsChemProp.2018021842
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RÉSUMÉ

Nanocomposite thermite powders using aluminum as fuel with cobalt and bismuth fluorides as oxidizers were prepared by arrested reactive milling. Each material contained 50 wt% of aluminum and 50 wt% of a fluoride, resulting in fuel-rich compositions. The reactions in the prepared powders were characterized by thermo-analytical measurements; powders were ignited as coatings on an electrically heated filament and by electrostatic discharge. It was observed that the exothermic reactions begin in aluminum–metal fluoride thermites at lower temperatures than in any previously prepared reactive nanocomposites based on aluminum. Redox reactions in Al·CoF2 and Al·BiF3 nanocomposite started around 200 and 250°C, respectively. The results suggest that the initial reactions are rate-limited by the decomposition of fluorides. In the oxygenated environments, metals generated by reducing the starting fluorides oxidize readily. The newly formed oxides are rapidly reduced by excess aluminum, accelerating aluminum oxidation at low temperatures. The low-temperature thermally activated reactions lead to low ignition temperatures for the powders heated on the filament. Despite the low ignition temperatures, both prepared materials were relatively insensitive to ignition by an electric spark, making them attractive components of advanced energetic formulations.

CITÉ PAR
  1. Valluri Siva Kumar, Schoenitz Mirko, Dreizin Edward, Fluorine-containing oxidizers for metal fuels in energetic formulations, Defence Technology, 15, 1, 2019. Crossref

  2. Valluri Siva Kumar, Schoenitz Mirko, Dreizin Edward, Boron-Metal Fluoride Reactive Composites: Preparation and Reactions Leading to Their Ignition, Journal of Propulsion and Power, 35, 4, 2019. Crossref

  3. Valluri Siva Kumar, Schoenitz Mirko, Dreizin Edward, Preparation and Characterization of Silicon-Metal Fluoride Reactive Composites, Nanomaterials, 10, 12, 2020. Crossref

  4. Valluri Siva Kumar, Schoenitz Mirko, Dreizin Edward L., Ignition Mechanisms of Reactive Nanocomposite Powders Combining Al, B, and Si as Fuels with Metal Fluorides as Oxidizers, Combustion Science and Technology, 2021. Crossref

  5. Hastings Daniel, Rodriguez Nikki, McCann Holly, Schoenitz Mirko, Dreizin Edward L., Titanium-boron reactive composite powders with variable morphology prepared by arrested reactive milling, Fuel, 310, 2022. Crossref

  6. Agarwal Prawal P. K., Matsoukas Themis, Enhanced Energetic Performance of Aluminum Nanoparticles by Plasma Deposition of Perfluorinated Nanofilms, ACS Applied Materials & Interfaces, 14, 30, 2022. Crossref

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