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On the fragility of -based and -based bulk metallic glasses
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Image of FIG. 1.
FIG. 1.

Onset glass transition temperature, , and onset crystallization temperature, , of binary and ternary alloys plotted vs the heating rate, , of the DSC.

Image of FIG. 2.
FIG. 2.

Fragility plot comparing the fragilities of the five -based alloys. The alloy exhibits the strongest liquid behavior and the alloy exhibits the most fragile liquid behavior. is defined as the onset of the glass transition when it is measured at a rate of .

Image of FIG. 3.
FIG. 3.

Fragility plot placing the five -based alloys in the context of other glass forming materials by comparing their fragilities with that of o-terphenyl (most fragile glass former) and (strongest glass former). Strong liquid behavior increases with the number of components in the alloy, .

Image of FIG. 4.
FIG. 4.

Fragility parameter, , is plotted vs the number of components in the alloy. In this plot, alloys of the system are compared to the -based alloys ,9 ,13 and .14 of the alloy increases as the complexity of the alloy increases.


Generic image for table
Table I.

Onset glass transition temperature, , and onset crystallization temperature, , at different heating rates are shown for the three alloys studied, that are not included in Fig. 1. The fragility parameters and VFT temperatures of the alloys are also listed.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: On the fragility of Nb-Ni-based and Zr-based bulk metallic glasses