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国际能源材料和化学驱动期刊

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ISSN 打印: 2150-766X

ISSN 在线: 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

THE IGNITION OF BORON-MAGNESIUM DUST CLOUDS

卷 2, 册 1-6, 1993, pp. 485-495
DOI: 10.1615/IntJEnergeticMaterialsChemProp.v2.i1-6.310
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摘要

This paper discusses the influence of Mg addition on boron dust-air clouds ignition. Analysis of this phenomena basis on experimental and theoretical data.
The mathematical model is restricted to quasi-steady approximation. It has been assumed that any temperature gradients (in gas, in solid/liquid phase) have been neglected. The influence of total mass concentration, initial gas temperature, particle size, pressure and content of Mg in percent on the ignition has been studied.
Experiments have been carried out with different binary mixtures in which content of Mg varied from 5 to 25% (by weight) and a total mass concentration (B+Mg, CΣ) varied from 0,05 to 0,60 kg/m3. The powders was dispersed into the reaction chamber by means of compressed air impulse. The formation time of dust air clouds was less than 20 m·sec. The gas temperature within reaction vessel varied in the range 800−1650 K. The critical ignition temperatures and delay times of binary (B+Mg) dust-air mixtures is measured.
From theoretical and experimental analysis it is shown that the addition of Mg in boron powder decrease a critical ignition temperature by 50−100 K and delay time up two orders.
The increase of magnesium percent content in binary systems have a dual effect on the process: firstly, the velocity of heat-generation increases in the beginning of the ignition; secondly, the conditions of boron cloud ignition have become worse due to the decrease of boron mass concentration and oxygen depletion. Competition of these factors stipulate the optimal addition when the ignition temperature of mixtures B+Mg has a minimum.

对本文的引用
  1. Agarwal Prawal P. K., Jensen Devon, Chen Chien-Hua, Rioux Robert M., Matsoukas Themis, Surface-Functionalized Boron Nanoparticles with Reduced Oxide Content by Nonthermal Plasma Processing for Nanoenergetic Applications, ACS Applied Materials & Interfaces, 13, 5, 2021. Crossref

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