Single-Crystalline Elastic Constants of ZrCo2 and HfCo2 in the Temperature Range 4.2°–300°K
- 1 January 1969
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 40 (1) , 79-82
- https://doi.org/10.1063/1.1657107
Abstract
The elastic constants of single crystals of the cubic Laves phases ZrCo2 and HfCo2 were determined by the pulse‐echo technique over the temperature range 4.2°–300°K. Debye temperatures for the two materials were computed from extrapolations of the elastic constants to 0°K. The ratio of these Debye temperatures is such as to indicate that the primary difference between the two materials is a difference in vibrational amplitudes resulting from the mass difference between zirconium and hafnium. Further substantiation of a close similarity of interatomic force interactions in the two materials is obtained by comparison of appropriate combinations of lattice parameters and force constants.This publication has 8 references indexed in Scilit:
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