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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

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STUDIES ON LOW VULNERABILITY GUN PROPELLANTS BASED ON CONVENTIONAL BINDERS AND ENERGETIC PLASTICIZERS

卷 7, 册 3, 2008, pp. 187-192
DOI: 10.1615/IntJEnergeticMaterialsChemProp.v7.i3.20
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摘要

To overcome the limitations of conventional single base, double base and triple base propellants, advanced low vulnerability ammunition (LOVA) propellants are being developed based on nitramines (RDX/HMX), energetic and non-energetic binders, and energetic plasticizers. LOVA propellants constitute an important branch of insensitive munitions (IM). In the present study, LOVA propellants, based on cellulose acetate (CA) and hydroxy terminated poly butadiene (HTPB) and their mixture as binders, with RDX and nitrocellulose (NC) as fillers and low molecular weight glycidyl azide polymer (GAP) (Mw 400−600) as energetic plasticizer were evaluated. The results obtained indicate that by using 70% RDX, 15% NC, 9% binders (CA/HTPB), and 6% GAP as plasticizer, the figure of insensitivity was increased to the 34−40 level. CA produced a figure of insensitivity (F of I) of 40 with a height of 50% explosion of 34 cm. These propellants can produce force constant in the range of 1100− 1150 J/g with linear burn rate coefficient of 0.3 cm/s/MPa. All the propellants studied are friction insensitive up to 36 kg weight. Their compressive strength is around 200 kg/cm2 with a compression of 5−8%. By including GAP as a plasticizer, a force constant on the order of 1200 J/g was obtained and the linear burn rate coefficient was reduced to a 0.13 cm/s/MPa level with a pressure index of 0.97. An increase in concentration of RDX to 75% at the cost of NC content (10%) led to a force constant increase to 1200 J/g. F of I was around 36 without any change in friction insensitivity. Likewise, 80% RDX, 5% NC with CA and HTPB as binders with 6% GAP as energetic plasticizer produced a force constant of 1340 J/g with a linear burning rate coefficient of 0.11 cm/s/MPa. A height of 50% explosion was in the range of 27−28 cm with an F of I at 33. Friction insensitivity was up to 36 kg.

参考文献
  1. Lee, P., Insensitive Munitions: Background and Technology.

  2. Choudhari, M.K., Asthana, S.N., Shrotri, P.G., and Singh, H., Advances in Low Vulnerability Gun Propellants (LOVA): A Review.

  3. Mackowick, H.S., Recent Investigations on Gun Propellants.

  4. Vogelsanger, B., Andres, H., Schadeli, U., Huber, A., Skriver, A., and Ryf, K., Tomorrow’s LOVA Propellants, Polymer Bonded or Nitrocellulose Based.

  5. Sanghavi, R.R., Joshi, M.M., Samuel, B.J., Velapure, S.P., and Singh, A., Evaluation of Different Plasticizers for LOVA Gun Propellants.

  6. Sanghavi, R.R., Kamale, P.J., Shaikh, M.A.R., Chakraborthy, T.K., Asthana, S.N., and Singh, A., Studies on GAP-Based LOVA Gun Propellants.

  7. Pillai, A.G.S, Sanghavi, R.R, Khire, V.H., Bombe, P.D., and Karir, J.S., Process Technology Development for LOVA Gun Propellant.

对本文的引用
  1. Szala Mateusz, Development trends in artillery ammunition propellants, Materiały Wysokoenergetyczne / High Energy Materials, 2020. Crossref

  2. Lin Yi-Hsien, Yang Tsung-Mao, Li Jin-Shuh, Lu Kai-Tai, Yeh Tsao-Fa, Preliminary Study on Characteristics of NC/HTPB-Based High-Energy Gun Propellants, ChemEngineering, 6, 5, 2022. Crossref

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