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International Journal of Energetic Materials and Chemical Propulsion

Erscheint 6 Ausgaben pro Jahr

ISSN Druckformat: 2150-766X

ISSN Online: 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

INVESTIGATION OF BORON IGNITION AND COMBUSTION BY MEANS OF FAST CINESPECTROGRAPHY

Volumen 2, Ausgabe 1-6, 1993, pp. 218-231
DOI: 10.1615/IntJEnergeticMaterialsChemProp.v2.i1-6.120
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ABSTRAKT

Boron ignition and combustion were investigated in oxygen-argon mixtures of different component concentration over a wide range of pressures ( 0.1...10 MPa ). In a visible region radiation spectra of the specimen surface are obtained and that of flame around it with time resolution up to 20 ms. An original method of color-luminance pyrometry has been applied to measure surface temperature. The experiments based on suggested technique illustrate the existence of three regimes of boron conversion into reaction products: high-temperature oxidation, surface combustion, and gas-phase combustion. It was found that the transition to gas-phase combustion occurs at specimen surface temperatures considerebly lower (in conditions close to atmospheric ones, by -550 K ) the boiling point of B2O3. A non-trivial character of ignition induction time versus oxygen content in the mixture was also discovered. The concept of a finite minimum thickness of the oxide layer is suggested to explain this facts. Under the conditions of regulated specimen heating from its initial temperature pressure increasing in moderate limits causes significant rise in ignition time and decrease in gas-phase combustion time. The latter manifests itself much more strongly than may be expected from the combustion diffusion model. At high pressures (≥5MPa) the process in oxygen - containing oxidative mixtures corresponds with either ineffective surface combustion or even its absence.

REFERENZIERT VON
  1. Savel’ev A. M., Titova N. S., Computational and Theoretical Analysis of the Effect of an Aluminum Borate Oxide Film on the Ignition Conditions of Single Aluminum Diboride Particles, Combustion, Explosion, and Shock Waves, 57, 3, 2021. Crossref

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