Ternary xMoO3–40TeO2–(60 x)V2O5 glasses with 0 6 x 6 60 (in mol%) have been pre-
pared by normal melt quenching method. DSC curves of these glasses have been investi-
gated. The glass transition properties that have been measured and reported in this
paper, include the glass transition temperature (Tg), glass transition width (DTg), heat
capacity change at glass transition (DCP) and calculated fragility (F). Thermal stability, Pois-
son’s ratio, fragility and glass forming tendency of these glasses have been evaluated, to
determine relationship between chemical composition and the thermal stability or to
interpret the structure of glass. In addition, Makishima and Makenzie’s theory was applied
for calculation of Young’s modulus, bulk modulus and shear modulus, indicating a strong
relation between elastic properties and structure of glass. Generally, results of this work
show that glass with x = 60 has the highest shear, bulk and Young’s moduli which make
it as suitable candidate for the manufacture of strong glass fibers in technological applica-
tions; but it should be mentioned that glass with x = 20 has higher handling temperature
and super resistance against thermal attack.