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Acta Armamentarii ›› 2017, Vol. 38 ›› Issue (5): 886-891.doi: 10.3969/j.issn.1000-1093.2017.05.007

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Experimental Study of Influence of Boron Content on Explosion Performance of Fuel-air Explosive

XU Min-xiao, LIU Da-bin, XU Sen   

  1. (School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China)
  • Received:2016-07-28 Revised:2016-07-28 Online:2017-07-03

Abstract: In order to know the influence of boron content on explosion performance of fuel-air explosive, the mixture of boron and aluminum is added to fuel-air explosive with formulation of B/Al/PO/petroleum ether/IPN, and a static explosion is performed to study the influence of boron content in the mixture on the explosion overpressure, impulse and heating effect. The test results indicate that the explosion overpressure, impulse and heating effect increase firstly and then decrease with the increase in boron content in fuel air explosive (FAE). When the mass fraction of boron is 12.5%, the ground impulse of the explosive reaches to 112.51 KPa·s, which is 6.16% higher than that of the aluminized FAE. When the mass fraction of boron is 12.5%, the explosion temperature reaches to 1 250 ℃, which is 20 ℃ higher than that of the aluminized FAE. When the mass fraction of boron is 12.5%, the biggest thermal radiation reaches to 68.266 kJ/m2, which is 7.14% higher than that of the aluminized FAE. Adding some boron powders to Al-B mixture can improve the underwater detonation energy of the aluminized FAE. Key

Key words: ordnancescienceandtechnology, boron, overpressure, impulse, maximumthermalfraction

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