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International Journal of Energetic Materials and Chemical Propulsion

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ISSN Печать: 2150-766X

ISSN Онлайн: 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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IGNITION AND COMBUSTION OF NICKEL COATED AND UNCOATED ALUMINUM PARTICLES IN HOT POST-FLAME ENVIRONMENT

Том 11, Выпуск 1, 2012, pp. 1-16
DOI: 10.1615/IntJEnergeticMaterialsChemProp.2012005110
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Краткое описание

It is well known that aluminum particles require a high temperature to achieve ignition, often in excess of 1900 K. Lowering the ignition temperature of Al particles can increase the efficiency of solid propellant-based propulsion systems and aluminized explosives. Current methods to reduce the ignition temperature include both reducing the particle size to the nanoscale and/or applying coatings that aid ignition. In this work, an experimental study of ignition and combustion of isolated 5 wt.% Ni-coated and uncoated aluminum particles was conducted. Two particle sizes (nominally, 32 and 9 µm in diameter) were examined. The ignition and combustion properties of these aluminum particles were observed in the post-flame zone of a multidiffusion flat-flame burner at atmospheric pressure. The results showed that the applied nickel coating decreased the ignition temperature of the Al particles by an average of 750 K for 32-µm diameter particles and between 200 and 300 K for the 9-µm diameter particles. Measurements of particle burning times indicated that the application of the nickel coating does not affect the overall burning time of the particles. Thus, the application of nickel coatings on Al particles significantly decreases the ignition temperature while not affecting the overall combustion behavior.

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