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Dynamics in melts: Interplay between packing density and viscosity
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View: Figures


Image of FIG. 1.
FIG. 1.

The of melts obtained on the neutron time-of-flight spectrometer, FOCUS. The solid lines are from fits using the MCT -scaling law [Eq. (1)] with . The dotted lines are fits with the KWW function with in the -relaxation regime.

Image of FIG. 2.
FIG. 2.

(a) The depends on the mean relaxation time of the -process rescaled using Eq. (3). The dotted lines are the linear fit crossing at zero, . (b) The temperature dependence of the amplitude and time scale of the -relaxation process according to Eq. (2). Both lines are extrapolated consistently to obtain the MCT at . The corresponding is .

Image of FIG. 3.
FIG. 3.

depends on the inverse of observed for five different temperatures. At values, , which shows a linear dependence. The straight line is the linear fit and the slope gives the .

Image of FIG. 4.
FIG. 4.

The of Cu atoms in the liquid as observed by QENS. The dotted curve is the -scaling fit to with and . The corresponding is .


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Dynamics in Cu46Zr42Al7Y5 melts: Interplay between packing density and viscosity