Research Article

Elastic Behavior of Borate Glasses Containing Lead and Bismuth Oxides

Table 2

Nonlinear regression analysis of the variables ( ) for density and molar volume in respect to molar fraction of Pb, Bi, K, Ag, and Li oxides [22, 23].

OxidesMolar volume versus molar fractionDensity versus molar fraction

PbO32.287−21.27837.3840.935−3.0728.6481.8420.999
23.0453.74337.9300.985−5.70210.9411.8310.998
K2O52.798−47.37337.6720.979−1.4431.7911.8630.988
Ag2O142.660−94.49837.6230.994−3.0727.6951.8310.999
Li2O41.412−53.04137.5170.9971.9211.9571.8490.996