Elastic properties of lead-phosphate glasses doped with samarium trioxide

A series of ternary lead-phosphate glasses doped with samarium trioxide, xSm2O3-(40-x)PbO-60 P2O5 (where x=0.1 to 0.5 mol) have been prepared by using conventional melt quenching method and their elastic properties have been studied at room temperature. Results from the studies show that both longitudinal and transverse sound velocities decrease by increasing the Sm2O3 content. Elastic moduli, Poisson's ratios decrease with increase of Sm2O3 composition up to 0.3 mol and then there is a slight increasing trend observed at 0.4 mol. The densities of these glasses have been measured by using displacement method. The variations of these parameters have been discussed with respect to samarium trioxide concentration. © 2009 Elsevier Ltd. All rights reserved