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International Journal of Energetic Materials and Chemical Propulsion

Publicado 6 números por año

ISSN Imprimir: 2150-766X

ISSN En Línea: 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

PREPARATION AND PROPERTIES OF OCTOGEN-BASED NANOCOMPOSITE PARTICLES

Volumen 13, Edición 2, 2014, pp. 157-168
DOI: 10.1615/IntJEnergeticMaterialsChemProp.2014010355
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SINOPSIS

An inert material, resorcinol formaldehyde (RF), was introduced to prepare octogen (HMX)-based nanocomposite particles by combining sol-gel and spray drying processes. Scanning electron microscopy (SEM), X-ray diffraction (XRD), and Fourier transformation infrared spectroscopy were used to characterize the samples. Moreover, we determined the impact sensitivity of the samples using a drop hammer apparatus and we analyzed their thermal decomposition by differential scanning calorimetry analysis. The SEM results indicated that the HMX-based nanocomposite particles were spherical in shape and ranged from 1 to 10 µm in size. In the nanocomposite particles, the HMX nanoscale-sized particles were evenly dispersed in the RF. The XRD peaks of the composite particles were much weaker and wider than those of raw HMX. Based on Scherrer's equation, the HMX crystal size obtained from the diffraction peaks at different 2Θ ranged from 8.1 to 28.1 nm. Compared with that of raw HMX, the nanocomposite particles had lower impact sensitivity and higher detonation velocity. Moreover, the nanocomposites had a higher activation energy (E) and pre-exponential factor than raw HMX.

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