Abstract
Self-propagating High-temperature Synthesis (SHS) of titanium and boron carbide (B4C) combined with explosively driven Dynamic Compaction (DC) was employed for the fabrication of composite TiB2/TiC compacts. A 23 factorially designed experiment set was used to examine the effects of the TiB2/TiC ratio, delay time and C/M ratio on the consolidation and properties of the compacts. The delay time is the time between completion of the SHS reaction and compaction. The C/M ratio, the ratio of the explosive mass to that of the flyer plate, influences the pressure applied to the samples during compaction. Composites with molar TiB2/TiC ratios of 2:1 or 1:2 were prepared using Ti and B4C or Ti, C and B4C, respectively, as reactants. The SHS/DC of Ti and B4C resulted in high quality, near fully dense TiB2/TiC composite compacts. Under best conditions, the densities were greater than 98% of the theoretical maximum. While the microhardness and densities of the compacts with TiB2/TiC ratio of 2:1 were comparable to those of monolithic TiB2 and TiC, compacts with TiB2/TiC ratios of 1:2 were poorly consolidated and contained extensive cracks. Given the high energy and time efficiency, high product quality and inexpensive reactants, the SHS/DC of Ti and B4C represents an attractive technique for the economical fabrication of TiB2/TiC composites.
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References
E. K. Storms, “The Refractory Carbides” (Academic Press, New York, 1967).
L. E. Toth, “Transition Metal Carbides and Nitrides” (Academic Press, New York, 1971).
G. V. Samsonov and B. A. Kovenskaya, in “Boron and Refractory Borides,” edited by V. I. Matkovich (Springer-Verlag, Berlin, 1977) p. 5.
Z. A. Munir and U. Anselmi-Tamburini, Mater. Sci. Reports 3 (1989) 277.
Y. Choi, M. E. Mullins, K. Wijayatilleke and J. K. Lee, High Temp. Tech. 3(3) (1990) 227.
H. C. Yi and J. J. Moore, J. Mater. Sci. 25 (1990) 1159.
L. Wang, M. R. Wixom and L. T. Thompson,J. Mater. Sci. submitted.
L. Wang, M. R. Wixom and L. T. Thompson, Phase I Report to U.S. Army Ballistic Research Laboratory, DAAA15-91-C0088, 1993.
H. A. Grebe, Ph.D. thesis, New Mexico Tech, Socorro, New Mexico, 1993.
W. A. Zdanieski, Am. Ceram. Soc. Bull. 65 (1986) 1408.
D. R. Stull and H. Prophet, “JANAF Thermodynamic Tables” (U.S. Department of Commerce, Washington, D.C., 1977).
J. W. McCauley, N. D. Corbin, T. Resetar and P. Wong, Ceram. Eng. Sci. Proc. 3(9-10) (1982), 538.
M. I. Mendelson, J. Am. Ceram. Soc. 52(8) (1969) 443.
R. K. Gurney, The Initial Velocities of Fragments from Bombs, Shells, and Grenades, BRL Report, 405, 1943.
I. Song, Ph.D. thesis, New Mexico Tech, Socorro, New Mexico, 1992.
A. H. Advani, N. N. Thadhani, H. A. Grebe, R. Heaps, C. Coffin and T. Kottke, J. Mater. Sci. 27 (1992) 3309.
A. Niiler, L. J. Kecskes, T. Kottke, P. H. Netherwood, Jr. and R. F. Benck, Technical Report BRL-TR-2951, US Army Ballistic Research Laboratory, Aberdeen Proving Ground, MD, 1988.
M. A. Riley and A. Niiler, Memorandum Report BRL-MR-3574, US Army Ballistic Research Laboratory, Aberdeen Proving Ground, MD, 1987.
A. Niiler, L. J. Kecskes and T. Kottke, in “Combustion and Plasma Synthesis of High Temperature Materials,” edited by Z. A. Munir and J. B. Birch (VCH., New York, 1990) p. 309.
L. J. Kecskes, R. F. Benck and P. H. Netherwood, J. Am. Ceram. Soc. 73(2) (1990) 383.
H. A. Grebe, A. Advani, N. N. Thadhani and T. Kottke, personal communication.
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Song, I., Wang, L., Wixom, M. et al. Self-propagating high temperature synthesis and dynamic compaction of titanium diboride/titanium carbide composites. Journal of Materials Science 35, 2611–2617 (2000). https://doi.org/10.1023/A:1004731532616
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DOI: https://doi.org/10.1023/A:1004731532616