Abstract
A new process combining electric field activation and the imposition of pressure from mechanically activated powder mixtures is demonstrated as a means to simultaneously synthesize and densify nano-MoSi2 in one step. Nanophase reactants (Mo + 2Si) produced by mechanical activation are reacted by field activation with the simultaneous application of a uniaxial pressure. Mo + 2Si powders were comilled in a specially designed planetary mill to obtain nanometric reactants but to avoid formation of any product phases. These were then subjected to high alternating currents (1600 A) and pressures of 106 MPa. Under these conditions, a reaction is initiated and completed within a short period of time (3–6 min). The relative density of the product ranged from 82 to 93%. The crystallite size of the MoSi2 compound was determined by x-ray diffraction line-broadening analysis using the Langford method. The size ranged from 58 to 75 nm.
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T. Kham, S. Saka, P. Veyssière, and P. Costa, Intermetallics for structural applications, High Temperature Materials for Power Engineering, Liège, France, Sept. 24–27, 1990 (1990).
M.J. Maloney and D. Shah, Advanced Intermetallics—Silicide, Physical Metallurgy and Processing of Intermetallic Compounds, edited by N.S. Stoloff and V.K. Sikka (Chapman and Hall, London, United Kingdom, 1996) p. 441.
Y.J. Jeng and B.J. Lavernia, J. Mater. Sci. 29, 2557 (1994).
N.S. Stoloff, Mater. Sci. Eng. A A261, 169 (1999).
J. Subrahmanyam, J. Am. Ceram. Soc. 76(1), 226 (1993).
C.D. Wirkus and D.R. Wilder, J. Am. Ceram. Soc. 49(4), 173 (1966).
W.Y. Lin, L.Y. Hsu, and R.F. Speyer, J. Am. Ceram. Soc. 77(5), 1162 (1994).
D.A. Hardwick, P.L. Martin, S.N. Patankar, and J.J. Lewandowski, in Proceedings of the 1st International Symposium on Structural Intermetallics. 1993: (TMS AIME, Warrendale, PA, 1993), p. 665.
S. Zhang and Z.A. Munir, J. Mater. Sci. 26, 3685 (1991).
A. Newman, T. Jewett, S. Sampath, C. Berndt, and H. Herman, J. Mater. Res. 13(9), 2662 (1998).
H. Gleiter, Acta Mater. 48, 1 (2000).
R.W. Siegel, Nanostruct. Mater. 4, 21 (1994).
C.C. Koch, Nanostruct. Mater. 2, 109 (1993).
H. Hahn and K.A. Padmanabhan, Philos. Mag. B 76, 559–571 (1997).
R.B. Schwarz, S.R. Srinivasan, J.J. Petrovic, and C.J. Maggiore, Mater. Sci. Eng. A 155, 75 (1992).
Z.A. Munir and U. Anselmi-Tanburini, Mater. Sci. Rep. 3, 277 (1989).
Z.A. Munir, Ceram. Bull. 67, 342 (1988).
J.J. Moore and H.J. Feng, Prog. Mater. Sci. 39, 243 (1995).
A.G. Merzhanov, in Combustion and Plasma Synthesis of High Temperature Materials, edited by Z.A. Munir and J.B. Holt (VCH publishers, New York, 1999).
Z.A. Munir, J. Mater. Synth. Process. 1, 387 (1993).
Z.A. Munir, I.J. Shon, and K. Yamazaki, Simultaneous Synthesis and Densification by Field-Activated Combustion, U.S. Patent No. 5 794 113 (11 August 1998).
I.J. Shon, Z.A. Munir, K. Yamazaki, and K. Shoda, J. Am. Ceram. Soc. 79, 1875 (1996).
F. Charlot, E. Gaffet, F. Bernard, B. Zeghmati, and J.C. Niepce, Mater. Sci. Eng. A A262, 279 (1999).
C. Gras, F. Charlot, E. Gaffet, F. Bernard, and J.C. Niepce, Acta Mater. 47, 2113 (1999).
C. Gras, D. Vrel, E. Gaffet, and F. Bernard, J. Alloys Compd. 314, 240 (2001).
V. Gauthier, C. Josse, F. Bernard, E. Gaffet, and J.P. Larpin, Mater. Sci. Eng. A A265, 117 (1999).
Ch. Gras, E. Gaffet, F. Bernard, and J.C. Niepce, Mater. Sci. Eng. A A264, 94 (1999).
F. Bernard, H. Souha, and E. Gaffet, Mater. Sci. Eng. A A284, 301 (2000).
Z.A. Munir, F. Charlot, F. Bernard, and E. Gaffet, U.S. Patent 6 200 515 (13 Mar. 2001).
J. Rawers, G. Slavens, D. Govier, C. Dogan, and R. Doan, Metall. Mater. Trans. A A27, 3126 (1996).
J. Rawers, Nanostruct. Mater. 11, 512 (1999).
Z.A. Munir, Mater. Sci. Eng. A A287, 125 (2000).
E. Gaffet, Mater. Sci. Eng. A A132, 181 (1991).
M. Abdellaoui and E. Gaffet, J. Alloys Compd. 198, 155 (1993).
M. Abdellaoui and E. Gaffet, Acta Mater. 44(2), 198, 725 (1993).
F. Charlot, E. Gaffet, F. Bernard, and Z.A. Munir, J. Am. Ceram. Soc. 84(5), 910 (2001).
F. Bernard, F. Charlot, E. Gaffet, and J.C. Niepce, Int. J. SHS 7, 233 (1998).
Y. Zhang and G.C. Stangle, J. Mater. Res. 10, 1828 (1995).
K.K. Chawla, J.J. Petrovic, J. Alba, Jr., and R. Hexemer, Mater. Sci. Eng. A A261, 181 (1999).
J.S. Jayashankar, E.N. Ross, P.D. Eason, and M.J. Kaufman, Mater. Sci. Engl. A A239–240, 485 (1997).
M. Yamaguchi, H. Inui, and K. Ito, Acta Mater. 48, 307 (2000).
S.C. Deevi, J. Mater. Sci. 26, 3343 (1991).
S.W. Jo, G.W. Lee, J.T. Moon, and Y.S. Kim, Acta Mater. 44, 4317 (1996).
S.W. Chae, C.H. Son, and Y.S. Kim, Mater. Sci. Eng. A A279, 111 (2000).
Y.T. Zhu, M. Stan, S.D. Conzone, and D.P. Butt, J. Am. Ceram. Soc. 82, 2708 (1999).
Y.S. Kim, M.R. Johnson, R. Abbaschian, and M.J. Kaufman, in High-temperature Ordered Intermetallic Alloys IV, edited by L.A. Johnson, D.P. Pope, and J.O. Stiegler (Mater. Res. Soc. Symp. Proc. 213, Pittsburgh, PA, 1991), p. 839.
J.L. Langford, The use of the Voigt function in determining microstructural properties from diffraction data by means of pattern decomposition, Proc. of Int. Conf. Accuracy in Powder Diffraction II, held at NIST, Gaithersburg, MD, May 26–29, 1992 (NIST, Gaithersburg, MD, 1992).
N.C. Halder and C.N.J. Wagner, Acta Crystallogr. 20, 91 (1966).
Y. Zhang and G.C. Stangle, J. Mater. Res. 10, 1962 (1995).
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Gras, C., Bernard, F., Charlot, F. et al. Simultaneous Synthesis and Consolidation of Nanostructured MoSi2. Journal of Materials Research 17, 542–549 (2002). https://doi.org/10.1557/JMR.2002.0076
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DOI: https://doi.org/10.1557/JMR.2002.0076