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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

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HMX POLYMORPHISM: VIRTUAL MELTING GROWTH MECHANISM, CLUSTER-TO-CLUSTER NUCLEATION MECHANISM AND PHYSICALLY BASED KINETICS

Volume 8, Numéro 6, 2009, pp. 571-593
DOI: 10.1615/IntJEnergeticMaterialsChemProp.v8.i6.80
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RÉSUMÉ

A fully physically-based thermodynamic and kinetic model of the β ↵ δ phase transformation in energetic crystal HMX crystal embedded in polymeric binder is developed. It is based on a new nucleation mechanism via melt mediated nano-cluster transformation and the recently formulated growth mechanism via internal stress-induced virtual melting. During the nucleation, nano-sized clusters of β phase dissolve in a molten binder and transform diffusionally into δ phase clusters. During the interface propagation, internal stresses induced by transformation strain cause the melting of the stressed δ phase much below (120K) the melting temperature and its immediate resolidification into the unstressed δ phase. These mechanisms explain numerous puzzles of HMX polymorphism and result in local and overall transformation kinetics that are in good agreement with experiments.

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