Figure 3
From: Fragility and basic process energies in vitrifying systems
Degree of nonlinearity at “Arrhenius-type” plotted as ln(ΔEa(T)) vs. Tg/T for representative glass formers.
The figure indicates the lack of correlation between increasing curvature, coupled to fragility and the value of ΔEa(Tg). The clear disagreement with eq. (3) is stressed by the inset: the blue, dashed line is related to eq. (3) and the solid, black line is based on the MFR.
