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Atomic packing in bulk metallic glass
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10.1063/1.3544049
/content/aip/journal/apl/98/3/10.1063/1.3544049
http://aip.metastore.ingenta.com/content/aip/journal/apl/98/3/10.1063/1.3544049
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Volume expansion of BMG from the as-cast to the supercooled liquid and the melt evaluated by using the first maximum shift in I(q). DSC trace shows the temperature change. Inset gives the first maximum shift in I(q) upon temperature rising.

Image of FIG. 2.
FIG. 2.

Comparison in (a) S(q) and (b) g(r) of experimental data (solid line) with RMC simulated data (open circle) for BMG at 298 and 723 K, respectively. Inset of (a) is a cubic box containing 20 000 atoms of Mg, Cu, and Gd atoms obtained after simulation convergence. Inset of (b) shows the changes in partial g(r) of different atomic pairs at 298 and 723 K.

Image of FIG. 3.
FIG. 3.

(a) Total fraction changes of major polyhedra and (b) fraction changes for those centered by Mg, Cu, and Gd atoms, in BMG at 298 and 723 K.

Image of FIG. 4.
FIG. 4.

(a) Comparison in XAFS spectra of experimental data (solid line) with RMC simulated ones and (b) polyhedra centered by Mg, Cu, and Gd atoms, showing high probability of half-octahedral and tetrahedral existence.

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/content/aip/journal/apl/98/3/10.1063/1.3544049
2011-01-19
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Atomic packing in Mg61Cu28Gd11 bulk metallic glass
http://aip.metastore.ingenta.com/content/aip/journal/apl/98/3/10.1063/1.3544049
10.1063/1.3544049
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