Elastic Moduli and Phonon Dispersion Curves for Amorphous Metals and Alloys

central pairwise potential effective between the nearest neighbors only. The volume-dependent force due to conduction electrons has been included using the Thomas-Fermi method. Relevant relations and results for the elastic constants, bulk modulus, shear modulus, Young modulus, Poisson ratio and velocities of sound for amorphous metals are presented in Section II. The evaluation of dispersion curves and connection of elastic properties to thermal properties through Debye temperature are discussed in Section III. Phonon dispersion curves for ZrCo and Zr67Ni33 are also presented. This is followed by conclusion in Section IV.