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International Journal of Energetic Materials and Chemical Propulsion

年間 6 号発行

ISSN 印刷: 2150-766X

ISSN オンライン: 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

COMBUSTION OF ALUMINUM FLAKES IN THE POST-FLAME ZONE OF A HENCKEN BURNER

巻 7, 発行 1, 2008, pp. 55-71
DOI: 10.1615/IntJEnergeticMaterialsChemProp.v7.i1.40
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要約

Aluminum flakes have been used in propellants and explosives. The objective of this paper is to experimentally study the ignition and combustion behavior of aluminium flakes that have a thickness of 200 nm and a nominal diameter of 16 μm. Flakes with and without a thin coating of Teflon were studied. Teflon-coated Al flakes have a very strong tendency to agglomerate, up to four times their original size, resulting in a drastically increased particle burning time when compared to single aluminum flakes. Ignition of single flakes and agglomerates of Al flakes was observed at 1,800 K, which is about 300 to 500 K below the normal ignition temperature of aluminum. This observation also indicates that the ignition of agglomerates of Al flakes is governed by the heating process of a single flake. Under the same test conditions, single uncoated aluminum flakes exhibited two different burning modes; one mode produced a long, dim burning streak with combustion times on the order of 6 ms, the particles burning in the other mode showed vigorous reaction, producing a very short, bright burning streak with combustion times less than 1 ms. This phenomenon is believed to be governed by whether or not the Al flakes fragment during ignition process. The recovered samples from dimly burning particles are about the same diameter as the original flakes, but those recovered from the vigorously burning Al flakes showed much smaller sizes, indicating particle fragmentation. Measurements of combustion times of the intensely burning Al flakes are very close to measurements performed on nano-aluminum with a diameter of 192 nm performed by Parr et al. This agreement indicates the combustion times of intensely burning aluminum flakes are determined by the thickness rather than the diameter of the flake.

参考
  1. Parr, T., Johnson, C., Hanson-Parr, D., Higa, K., and Wilson, K., Evaluation of Advanced Fuels for Underwater Propulsion.

  2. Price, E., Combustion of Metalized Propellants.

  3. Prentice, J., Combustion of Aluminum Droplets in Various Oxidizing Gases Including CO2 and Water Vapor.

  4. Beckstead, M.W., Correlating Aluminum Burning Times.

  5. Bayzn, T., Krier, H., and Glumac, N., Oxidizer and Pressure Effects on the Combustion of 10-μm Aluminum Particles.

  6. Servaites, J., Krier, H., Melcher, J., Burton, R., Ignition and Combustion of Aluminum Particles Shocked in H2O/O2/Ar and CO2/O2/Ar Mixtures.

  7. Bayzn, T., Krier, H., and Glumac, N., Combustion of Nanoaluminum at Elevated Pressure and Temperature Behind Reflected Shock Waves.

  8. Brossard, C., Ulas, A., Yeh, C.L., and Kuo, K.K., Ignition and Combustion of Isolated Aluminum Particles in the Post-Flame Region of a Flat-Flame Burner.

によって引用された
  1. Verma Sumit, Ramakrishna P. A., Effect of Specific Surface Area of Aluminum on Composite Solid Propellant Burning, Journal of Propulsion and Power, 29, 5, 2013. Crossref

  2. Belal Hatem, Han Chang W., Gunduz Ibrahim E., Ortalan Volkan, Son Steven F., Ignition and combustion behavior of mechanically activated Al–Mg particles in composite solid propellants, Combustion and Flame, 194, 2018. Crossref

  3. Marothiya Gaurav, Ramakrishna P. A., Utilization of Mechanically Activated Aluminum in Hybrid Rockets, Journal of Propulsion and Power, 34, 5, 2018. Crossref

  4. Wang Deqi, Xu Guozhen, Tan Tianyu, Liu Shishuo, Dong Wei, Li Fengsheng, Liu Jie, The Oxidation Process and Methods for Improving Reactivity of Al, Crystals, 12, 9, 2022. Crossref

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