S. Sindhu et Cs. Menon, HIGHER-ORDER ELASTIC-CONSTANTS AND 2ND PRESSURE DERIVATIVES OF ZIRCONIUM, Indian Journal of Pure & Applied Physics, 35(7), 1997, pp. 476-478
Expressions for the higher order elastic constants are derived using t
he sublattice displacements to the second degree in strains. These exp
ressions together with the expressions for the second and third order
elastic constants have been used to obtain the higher order elastic co
nstants and the pressure derivatives to second order elastic constants
of hexagonal zirconium. The results obtained are compared with the re
ported values. The second pressure derivatives of zirconium are also r
eported.