Conclusion
We have attempted to analyze the synthesis of the diamond phase during, the detonation of secondary explosives by comparing the results of an explosion experiment with data obtained by studying preserved UDD powders.
These data show that during detonation the growth in the UDD particles is a strongly limited process that is essentially independent of the size of the explosive charge or the external cooling conditions. The size distributions of diamond particles formed during direct synthesis from the carbon contained in the molecular structure of the explosive and during dissociation of inert organic substances are in satisfactory agreement with a lognormal distribution. The thermodynamic conditions during synthesis determine the dispersivity of the product UDD particles and this must be taken into account in thermodynamic detonation calculations. The effect of the different constituents of the, explosive on UDD synthesis (heat and mass transfer) is strongly limited.
These data may support the concept of detonation in secondary explosives as a set of relatively fast and much slower reactions [25, 26] where, in the case of composites, the coagulation of carbon released during decomposition of each component separately and diffusion processes among the components may both act as slow exothermic reactions.
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Literature Cited
K. V. Volkov, V. V. Danilenko, and V. I. Elin, “Synthesis of diamond from carbon in the detonation products of explosives”, Fiz. Goreniya Vzryva,26, No. 3, 123–125 (1990).
A. I. Lyamkin, E. A. Petrov, A. P. Ershoy et al., “Production of diamonds from explosives,” Dokl. Akad. Nauk SSSR,302, No. 3, 611–613 (1988).
N. Roy Greiner, D. S. Phillips, J. D. Johnson, et al., “Diamonds in detonation soot,” Nature,333, No. 6172, 440–442 (1988).
V. M. Titov, V. F. Anisichkin, and I. Yu. Mal'kov, Fiz. Goreniya Vzryva,35, No. 3, 117–126 (1989).
V. M. Titov, V. F. Anisichkin and I. Yu. Mal'kov, “Synthesis of ultrafine diamonds in detonation waves,“. Preprint, Papers 9th Symp. on Detonation, Portland, (1989), pp. 175–183.
V. F. Anisichkin, I. Yu. Mal'kov, and V. M. Titov, “Diamond synthesis during dynamic loading of organic substances” Dokl. Akad. Nauk SSSR,303, No. 3, 625–627 (1988).
V. M. Titov, V. F. Anisichkin, and I. Yu. Mal'kov, “Diamond synthesis from dynamically loaded organic matter”, in: Shock Compression of Condensed Matter, Elsevier, Amsterdam (1990), pp. 659–662.
I. Yu. Mal'kov, “Formation of an ultradispersed diamond phase of carbon during detonation of heterogeneous composites,” Fiz. Goreniya Vzrya,27, No. 5, 136–140 (1991)
D. Svergun and L. Feigin, Small Angle X-Ray and Neutron Scattering [in Russian], Fizmatgiz, Moscow (1988).
V. Kolomijchuk, React. Catal. Lett.,20, 123–128 (1982).
V. F. Anisichkin, B. G. Derendyaev, I. Yu. Mal'kov, et al., “Isotope techniques for studying detonation of condensed explosives,” Dokl. Akad. Nauk SSSR,314, No. 4, 879–881 (1990).
C. G. Grandvist and R. A. Burham, “Ultrafine metal particles”, J. Appl. Phys.,17, 2200–2219 (1976).
I. D. Morokhov, L. I. Trusov, and V. P. Lapovok, Physical Phenomena in Ultradispersed Media [in Russian], Energoatomizdat, Moscow (1984).
S. A. Gubin, V. V. Odintsov, and V. I. Pepekin, “Thermodynamic calculations of detonation in condensed explosives,” Preprint, Inst. Khim. Fiz., Akad. Nauk SSSR, Chernogolovka (1986).
S. A. Gubin, V. V. Odintsov, et al., “The effect of the shape and size of graphite and diamond crystals on the phase equilibrium of carbon and detonation parameters,” Preprint, Inst. Khim. Fiz., Akad. Nauk SSSR, Chernogolovka (1989).
Mathias van Thiel and Francis H. Ree, “Properties of carbon clusters in TNT detonation products: graphite-diamond transition,” J. Appl. Phys.,62, 1761 (1987).
A. P. Ershov and A. L. Kupershtokh, “Formation of fractal structures during explositions,” Pis'ma Zh. Tekh. Fiz.,16, No. 3, 42–46 (1990).
V. F. Anisichkin, I. Yu. Mal'kov, and F. A. Sagdiev, “Synthesis of diamond during detonation of aromatic nitro-compounds” in:: Talks at Fifth All-Union Conf. on Detonation [in Russian], Vol. 1, Krasnoyarsk (1991).
C. L. Mader, Numerical Modeling of Detonation [in Russian], Vol. 1, U. Cal Press, Berkeley, Los Alamos, London (1979).
Francis H. Fee “Systematics of high-pressure and high-temperature behavior, of hydrocarbons,” J. Chem. Phys.79, 974 (1979).
W. J. Nellis, F. H. Ree, R. J. Trainor, et al., “Equation of state and optical luminosity of benzene, polybutene, and polyethylene shocked to 210 GPa J. Chem. Phys.,80, 2789 (1984).
N. V. Kozyrev, P. M. Brylyakov, Sen Chel Su, et al., “Tracer studies of ultradispersed diamond synthesis,” Dokl. Akad. Nauk SSSR,314, 889–891 (1990)
Francis H. Ree, “A statistical mechanical theory of chemically reacting multiphase mixtures: Application to the detonation properties of PETN,” J. Chem. Phys.,81 1251–1263 (1984).
A. N. Dremin, S. D. Savrov, et al., Detonation Waves in Condensed Media [in Russian], Nauka, Moscow (1970).
M. S. Shaw and J. D. Johnson, “Carbon clustering in detonation,” J. Appl. Phys.,62, 2080–2085 (1987)
P. K. Tang, W. L. Seitz, et al., “A study of the contribution of slow reactions in detonation,” in: Shock Compression of Condensed Matter, Elsevier, Amsterdam (1990), pp. 279–282.
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Novosibirsk. Translated from Fizika Goreniya i. Vzryva, Vol. 29, No. 1, pp. 120–128, January–February, 1993.
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Kolomiichuk, V.N., Mal'kov, I.Y. Synthesis of an ultradispersed diamond phase during detonation of composites. Combust Explos Shock Waves 29, 113–121 (1993). https://doi.org/10.1007/BF00755341
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DOI: https://doi.org/10.1007/BF00755341