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International Journal of Energetic Materials and Chemical Propulsion

Publicou 6 edições por ano

ISSN Imprimir: 2150-766X

ISSN On-line: 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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PARAFFIN-BASED SOLID FUELS FOR HYBRID PROPULSION FILLED WITH LITHIUM ALUMINUM HYDRIDE: THERMAL, MECHANICAL, AND BALLISTIC CHARACTERIZATION

Volume 15, Edição 6, 2016, pp. 501-527
DOI: 10.1615/IntJEnergeticMaterialsChemProp.2017016259
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RESUMO

A chemical, thermal, mechanical, and ballistic investigation of paraffin-based solid fuels filled with lithium aluminum hydride [(LAH) LiAlH4] for hybrid propulsion is presented in this paper. Two different formulations containing 5% and 10% of polystyrene-block-poly(ethylene-ran-butylene)-block-polystyrene, a styrene-based thermoplastic elastomer [i.e., styrene-ethylene-butylene-styrene grafted with maleic anhydride (SEBS-MA)], were investigated to strengthen paraffin waxes. Two LAH mass fractions were considered for each paraffin-based blend (5% and 10%), for a total of four fuel formulations. The paraffin-based blends filled with LiAlH4 were found to be stable when exposed to air. The rheological properties were investigated using a parallel-plate rheometer giving evidence of the link between the elastic modulus (G') evolution and the thermal behavior of LAH. The thermal properties were studied using differential scanning calorimetry in order to obtain data on the typical transitions of paraffin waxes (solid/solid and solid/liquid) and also on the thermal decomposition of the added energetic filler. A manufacturing technique for the production of homogeneous blends strengthened with SEBS-MA and filled with LAH is described. Firing tests were performed in a laboratory-scale hybrid motor using gaseous oxygen; the local and instantaneous regression rates were measured using a fiber-optic technique. The behavior of paraffin waxes blended with the selected SEBS-MA thermoplastic elastomer and filled with LAH is discussed.

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