Sketch of (a) equilibrium free volume line and absolute free volume relative to the reference state and (b) free volume change relative to the reference state .
(a) Experimental and hypothesized DIL traces. DSC and traces with (b) large- and (c) small-scale vertical coordinates. (d) The corresponding curve.
(a1, b1) Experimental and hypothesized DIL traces, (a2, b2) DSC traces, (a3, b3) traces, and (a4, b4) curves of BMGs with different sample diameters and heating rates. The hypothesized traces are not plotted for a clearer display.
The effects of sample diameter and heating rate on (a1, b1) , (a2, b2) and , (a3, b3) , and (a4, b4) and .
[(a1)-(l1)] DSC and the traces of 12 Pd-, Mg-, Cu-, Zr-, Ti-, and Fe-based BMGs; [(a2)-(l2)] enlarged regions around the glass transition location, with the arrows indicating the ; [(a3b3)-(k3l3)] DIL and traces, with the arrows indicating the (the hypothesized traces and hypothesized DIL traces are not plotted for a clearer display; [(a4b4)-(k4l4)] Corresponding curves. The sample diameters and heating rates of DSC and DIL were 2.0 mm and 5 K/min, respectively.
Correlation between and of the 12 BMGs.
Correlation between the GFA ( ) and of the twelve BMGs. The confidence bands are also shown.
and of BMG rods under different conditions of sample diameter ( ) and heating rate ( ).
Summary of the thermal analyses by DSC ( , , , ), and of the 12 BMGs. The diameter of the samples was 2 mm. The heating rates in the DSC and DIL tests were 20 K/min and 5 K/min, respectively. The relative change is calculated as , where X denotes , , , , and .
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