Abstract
The elastic constants,c ij, of VSi2 (C40), CrSi2 (C40), TiSi2 (C54), and CoSi2 (Cl) single crystals were determined at room temperature from the velocities of ultrasonic waves. The orientation dependence of the compliance constants, s11 and s66, and Poisson’s ratio were discussed for each disilicide single crystal. Elastic moduli like Young’s modulus of ideal polycrystalline com-pounds were estimated from the elastic constants of single crystals using Hill's approximation. The elastic moduli of the disilicides are higher than those of the constituent elements, except for CoSi2. CoSi2 shows a higher Poisson’s ratio of 0.36 compared with that of the other dis-ilicides, 0.15 to 0.19. The Young’s modulus and the shear modulus of the disilicides increase with increasing melting temperature, and these are located in the upper part of the band indi-cating the elastic moduli-melting temperature relationship in intermetallic compounds. TiSi2, VSi2, CrSi2, and MoSi2 exhibit considerably higher Young’s modulus to density ratio, about 70 GPa/(g/cm3), than the constituent elements, except for Si
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References
Y. Umakoshi, T. Hirano, T. Sakagami, and T. Yamane:Scripta Metall. Mater., 1989, vol. 23, pp. 87–90.
Y. Umakoshi, T. Sakagami, T. Hirano, and T. Yamane:Acta. Metall., 1990, vol. 38, pp. 909–15.
K. Kimura, M. Nakamura, and T. Hirano:J. Mater. Sci., 1990, vol. 25, pp. 2487–92
M. Nakamura, S. Matsumoto, and T. Hirano:J. Mater. Sci., 1990, vol. 25, pp. 3309–13. '
M. Nakamura and K. Kimura:J. Mater. Sci., 1991, vol. 26, pp. 2208–14.
P. Villars and L.D. Calvert:Pearson's Handbook of Crystallographic Data for Intermetallic Phases, ASM, Metals Park, OH, 1985.
D.I. Bolef and J. de Klerk:J. Appl. Phys., 1962, vol. 33, pp. 2311–14.
D.I. Bolef and J. de Klerk:Phys. Rev., 1963, vol. 129, pp. 1063–67.
D.I. Bolef:J. Appl. Phys., 1961, vol. 61, pp. 100–05.
E.S. Fisher and C.J. Renken:Phys. Rev., 1964, vol. 135A, pp. 482–94.
H.J. McSkimin:J. Appl. Phys., 1955, vol. 26, pp. 406–09.
H.J. McSkimin:J. Appl. Phys., 1953, vol. 24, pp. 988–97.
M. Nakamura:Bull. Jpn. Inst. Met., 1991, vol. 30, pp. 404–12.
R. Hill:Proc. Phys. Soc., 1952, vol. A65, pp. 349–54.
O.L. Anderson:J. Phys. Chem. Solids,1963, vol. 24, pp. 909–17.
R.L. Fleischer, R.C. Gilmore, and R.J. Zabala:Acta Metall., 1989, vol. 37, pp. 2801–03.
R.L. Fleischer:Proc. Int. Symp. on Intermetallic Compounds (JIMIS-6), O. Izumi, ed., Japan Institute of Metals, Sendai, Japan, 1991, pp. 157–63.
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Nakamura, M. Elastic constants of some transition- metal- disilicide single crystals. Metall Mater Trans A 25, 331–340 (1994). https://doi.org/10.1007/BF02647978
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DOI: https://doi.org/10.1007/BF02647978