Abstract
It is shown that for shaped charges with porous liners, shaped-charge flow of two types is possible: dispersed jet flow, which fills the entire shaped-charge cavity, and monolithic jet flow. Conditions for transition from one type of flow to the other are estimated, and it is shown that by changing the initial porosity, it is possible to control the physicomechanical characteristics of the liner material during compression of the liner by the detonation products of the explosive charge. For monolithic jet flow, it is shown experimentally that shaped charges with porous liners can have greater penetrating capability into steel targets than charges with monolithic liners of similar design. Dispersed jet flow is used to apply coatings on substrate targets and to synthesize new compounds. Experiments are described in which shaped-charge liners made of a mechanical mixture of W or Ti powders with carbon are used to produce layers containing the carbides of the indicated metals on steel or titanium substrate.
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References
V. G. Kabulashvili and Yu. A. Trishin, “Jet flows in explosive compression of porous liners and their applications,” in:Inf. Byul. of Lavrent’ev Institute of Hydrodynamics, No. 18, Novosibirsk (1988), pp. 149–157.
Yu. A. Trishin, “Influence of energy dissipation on shaped-charge flow characteristics,” in:IVth Zababkhin Scientific Readings: Collected Papers of Scientific Conference (October 1995), Snezhinsk (1996), pp. 23–30.
V. G. Kabulashvili, S. A. Kinelovskii, Yu. N. Popov, and Yu. A. Trishin, USSR Inventor’s Certificate No. 1729035, “Device for applying coatings,” Publ. 1992, Byul. No. 15.
S. A. Gromilov, S. A. Kinelovskii, Yu. N. Popov, and Yu. A. Trishin, “Possibility of physicochemical transformations in shaped-charge application of coatings,”Fiz. Goreniya Vzryva,33, No. 6, 127–130 (1997).
B. A. Baum,Metallic Liquids — Problems and Hypotheses [in Russian], Nauka, Moscow (1979).
M. A. Lavrent’ev, “Shaped charge and principles of its operation,”Usp. Mat. Nauk,12, No. 4(76), 41–52 (1957).
Ya. B. Zel’dovich and Yu. P. Raizer,Physics of Shock Waves and High-Temperature Hydrodynamic Phenomena, Academic Press, New York (1967).
K. P. Stanyukovich (ed.),Physics of Explosion [in Russian], Nauka, Moscow (1975).
M. M. Martynyuk, “Phase explosion of a metastable liquid,”Fiz. Goreniya Vzryva,13, No. 2, 213–229 (1977).
S. A. Kinelovskii and Yu. A. Trishin, “Physical aspects of shaped-charge action,”Fiz. Goreniya Vzryva,16, No. 5, 26–40 (1980).
A. V. Kurdyumov et al.,Polymorphic Modifications of Carbon and Boron Nitride: Handbook [in Russian], Metallurgiya, Moscow (1994).
Powder Diffraction File. Inorganic Phases. Alphabetical Index, ICDD, USA (1995).
G. V. Samsonov, G. Sh. Upadkhaya, and V. S. Neshpor,Physical Study of Carbides [in Russian], Naukova Dumka, Kiev (1974).
E. Storms,High-Melting Carbides [Russian translation], Atomizdat, Moscow (1970).
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Translated fromFizika Goreniya i Vzryva, Vol. 36, No. 2, pp. 122–132, March–April, 2000.
This work was supported by the Russian Foundation for Fundamental Research (Grant Nos. 97-01-00826 and 98-03-32328).
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Trishin, Y.A., Kinelovskii, S.A. Effect of porosity on shaped-charge flow. Combust Explos Shock Waves 36, 272–281 (2000). https://doi.org/10.1007/BF02699373
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DOI: https://doi.org/10.1007/BF02699373