Abstract
The problem of producing bulk specimens by explosive compaction of a synthetic diamond powder without binders and catalytic additions is considered. The method of long–pulse explosive compaction with the use of multilayered explosive charges with a total mass up to 760 kg is used in experiments. The physicochemical properties of the resulting compacts are studied in detail. It is shown that, for relatively low loading pressures, long–pulse explosive compaction makes it possible to produce specimens whose hardness is equal to that usually obtained under higher (by one order of magnitude) shock pressures with a pulse duration of ≈1 μsec. In contrast to short–pulse loading, long–pulse loading ensures a considerable decrease in the cracking of the compacts.
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REFERENCES
T. Akashi and A. Sawaoka, “Shock consolidation of diamond powders,” J. Mater. Sci., 22, 3276–3286 (1987).
D. K. Potter, and T. J. Ahrens, “Dynamic consolidation of diamond powders into polycrystalline diamond,” Appl. Phys. Lett., 51, No. 5, 317–319 (1987).
S. Sawai and K. Kondo, “Characterization of the grain boundary in shock-compacted diamond,” J. Amer. Ceram. Soc., 71, No. 4, 185–188 (1988).
K. Kondo and S. Sawai, “Fabricating nanocrystalline diamond ceramics by a shock compaction method,” J. Amer. Ceram. Soc., 73, No. 7, 1983–1991 (1990).
D. K. Potter and T. J. Ahrens, “Shock consolidation of diamond and graphite mixtures to fused polycrystalline diamond,” J. Appl. Phys., 63, No. 3, 910–914 (1988).
S. Sawai and K. Kondo, “Essential factors for shock compaction of diamond composites,” J. Amer. Ceram. Soc., 73, No. 8, 2428–2434 (1990).
A. Sawaoka and T. Akashi, “High density compacts at high hardness materials,” U.S. Patent Nos. 4.655.830 and 4.695.321 (1987).
N. V. Novikov, A. L. Maistrenko, V. I. Trefilov, and V. Kovtun, “Structure and properties of shock-wave sintered diamond composites,” Ind. Diamonds Rev., No. 5, 278–281 (1993).
Shi-Shian Shang, K. Hokamoto, and M. A. Meyers, “Hot dynamic consolidation of hard ceramics,” J. Mater. Sci., 27, 5470–5476 (1992).
S. S. Batsanov, V. A. Vazyulin, L. I. Kopaneva et al., “Shock pressing of a diamond powder,” Fiz. Goreniya Vzryva, 27, No. 4, 139 (1991).
V. S. Joshi, P.-A. Persson, and N. N. Thadhani, “Effect of impurities on transient heat conduction in shock compaction of diamond powders,” in: Proc. of the EXPLOMET'95 Int. Conf. (El Paso, TX, 1995), Elsevier, Netherlands (1995), pp. 37–44.
E. E. Lin, V. A. Medvedkin, and S. A. Novikov, “Compaction of ultradisperse diamonds by weak shock wave,” ibid, Elsevier, Netherlands (1995), pp. 89–92.
D. Raybould, “The properties of stainless steel compacted dynamically to produce cold interparticle welding,” J. Mater. Sci., 16, No. 3, 589–598 (1981).
A. Ferreira and M. A. Meyers, “Method for determining pressure required for shock compaction of powders,” in: M. Meyers, L. Murr, and K. P. Staudhammer (eds.), Proc. of the EXPLOMET'90 Int. Conf., 1990, Marcel Deccer, New York (1992), pp. 361–370.
A. A. Deribas, “The problem of obtaining dense and strong compacts in explosive loading of powders,” in: Proc. of the EXPLOMET'95 Int. Conf. (El Paso, TX, 1995), Elsevier, Netherlands (1995), pp. 23–28.
A. A. Shtertser, “Cold-welding model of dynamic consolidation of solids,” ibid, Elsevier, Netherlands (1995), pp. 133–138.
A. A. Shtertser, “Possible seizure mechanism of solids,” Trenie Iznos, 16, No. 4, 745–751 (1995).
A. A. Shtertser, “Welding wave on the contact spot of solids,” Tribol. Int., 31, No. 4, 169–174 (1998).
Yu. L. Krasulin, Interaction of a Metal with a Semiconductor in the Solid Phase [in Russian], Nauka, Moscow (1971).
A. A. Shtertser, “Rotational components of deformation in metal bodies under dynamic loading,” Fiz. Goreniya Vzryva, 34, No. 2, 129–133 (1998).
A. N. Dremin et al., “Detonation of industrial highexplosives,” Fiz. Tekh. Probl. Razrab. Polezn. Iskop., No. 1 (1971).
A. A. Deribas, Physics of Hardening and Explosion Welding [in Russian], Nauka, Novosibirsk (1981).
V. A. Kuznetsov, A. I. Chuvilin, Yu. V. Butenko, et al., “Closed curved graphite-like structures formation on micron-size diamond,” Chem. Phys. Lett., 289, 353–360 (1998).
D. S. Dolgushin, V. F. Anisichkin, and V. F. Komarov, “Shock densification of ultradispersed diamond,” Fiz. Goreniya Vzryva, 35, No. 3, 143–145 (1999).
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Deribas, A.A., Simonov, P.A., Filimonenko, V.N. et al. Long–Pulse Explosive Compaction of a Diamond Powder. Combustion, Explosion, and Shock Waves 36, 758–770 (2000). https://doi.org/10.1023/A:1002858823944
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DOI: https://doi.org/10.1023/A:1002858823944