Te. Matikas et al., MEASUREMENT OF THE DYNAMIC ELASTIC-MODULI OF POROUS TITANIUM ALUMINIDE COMPACTS, Journal of Materials Science, 32(4), 1997, pp. 1099-1103
The dynamic elastic moduli of the porous alpha-two titanium aluminide
compacts are measured using an ultrasonic technique. Both shear and lo
ngitudinal velocities are measured for compacts of different densities
, making computation of all the four elastic constants, namely, the Yo
ung's modulus, shear modulus, bulk modulus and Poisson's ratio. The de
pendence of these on the relative density are correlated and compared
with some earlier models, and some of the uncertainties in the earlier
models are discussed.