Grüneisen parameter and thermal expansion of V3Si and V3Ge

The Grüneisen parameter and lattice thermal expansion of the A-15 compounds V₃Si and V₃Ge at room temperature are evaluated on the basis of the method due to Brugger and Fritz 1] from the third order elastic constants reported earlier 2]. The calculated values are compared with available experimental values and are found to fit satisfactorily.