Abstract
The detonation velocity of an emulsion explosive containing hollow alumosilicate microspheres (cenospheres) as the sensitizer is measured. The size of the microspheres is 50–250 µm. The relations between the detonation velocity and the charge density and diameter are compared for emulsion explosives containing cenospheres or glass microballoons as the sensitizer. It is shown that for a 55 mm diameter charge, the maximum detonation velocity of the composition with cenospheres of size 70–100 µm is 5.5–5.6 km/sec, as well as for 3M glass microballoons. The critical diameter for the emulsion explosive with cenosphere is 1.5–2 times larger than that for the emulsion explosive with glass microballoons and is 35–40 mm.
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REFERENCES
R. S. Egly and A. E. Neckar, “Water-resistant sensitizers for blasting agents,” U. S. Patent No. 31, 615, 51 (1964).
K. Hattori, Y. Fukatsu, and H. Sakaim, “Effect of the size of glass microballoons on the detonation velocity of emulsion explosives,” J. Ind. Explos. Soc. Jpn., 43, 295–309 (1982).
H. Yoshida, M. Iida, K. Tanaka, et al., “Detonation behavior of emulsion explosives containing glass microballoons,” in: Proc. of the 8th Int. Symp. on Detonation (1985), pp. 171–177.
J. Lee, F. W. Sandstrom, B. G. Craig, and P.-A. Persson, “Detonation and shock initiation properties of emulsion explosives,” in: Proc. of the 9th Int. Symp. on Detonation (1989), pp. 263–271.
J. Cooper and G. Leiper, “Void size dependence of the steady detonation properties of emulsion explosives,” J. Energ. Mater., 7, 405–417 (1989).
J. Lee and P.-A. Person, “Detonation behavior of emulsion explosive,” Propell., Explos., Pyrotech., 15, 208–216 (1990).
M. M. Chaudhri, L.-A. Almgren, and A. Persson, “Detonation behavior of a water-in-oil type emulsion explosive containing glass microballoons of selected sizes,” in: Proc. 10th Int. Symp. on Detonation (1993), pp. 741–748.
B Holcomb, “The role of glass bubble in emulsion explosives,” in: Proc. China Soc. of Engineering Blasting Conf. (1997).
Y. Hirosaki, K. Murata, Y. Kato, and S. Itoh, “Detonation characteristics of emulsion explosive as function of void size and volume,” in: Proc. of the 12th Int. Symp. on Detonation (2002), pp. 263–271.
V. A. Sosnin and E. V. Kolganov, “Detonation in commercial emulsion explosives,” in: Vth Khariton Scientific Readings, Proc. Int Conf. (March 17–21, 2003), Inst. Exp. Phys., Sarov (2003), pp. 288–297.
K. K. Shvedov and V. V. Lavrov, “Detonation parameters of emulsion explosives,” in: Blasting Problems (collected scientific papers) [in Russian], No. 1, Moscow State Mining University, Moscow (2002), pp. 90–99.
T. A. Vereshchagina, N. N. Anshits, et al., “Producing cenospheres from power energetic ashes of stabilized composition and their properties,” Khim. Interes. Ustoich. Razv., 9, 379–391 (2001).
J. Cooper, G. A. Leiper, and G. W. Neilson, “Molecular and microscopic structural effects in the detonation of fluid explosives,” in: Proc. of the 12th Int. Symp. on Detonation (2002).
H. Eyring, R. E. Powell, G. H. Duffey, and R. B. Parlin, “The stability of detonation,” Chem. Rev. 45, 69 (1949).
A. N. Dremin, K. K. Shvedov, A. L. Krivchenko, et al., “Detonation of commercial HEs. Detonation characteristics of 6ZhV ammonite,” Fiz. Tekh. Probl. Razrab. Polezn. Iskop., No. 1, 46–51 (1971).
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Translated from Fizika Goreniya i Vzryva, Vol. 41, No. 5, pp. 119–127, September–October, 2005.
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Anshits, A.G., Anshits, N.N., Deribas, A.A. et al. Detonation Velocity of Emulsion Explosives Containing Cenospheres. Combust Explos Shock Waves 41, 591–598 (2005). https://doi.org/10.1007/s10573-005-0074-3
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DOI: https://doi.org/10.1007/s10573-005-0074-3