Figure 8
From: Accessing Forbidden Glass Regimes through High-Pressure Sub-Tg Annealing
Density (ρ) dependence of (a) onset temperature of glass transition Tg,onset, (b) enthalpy overshoot ΔHovershoot, and (c) width of the glass transition ΔTg for samples subjected to ambient pressure 0.9 Tg annealing performed subsequent to any compression (i.e., step 3 in Fig. 1). Results are shown for as-prepared glasses, glasses hot compressed at 1 GPa for different durations, and glasses also subjected to in-situ high-pressure sub-Tg annealing for different durations (ta).
