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Melting and supercooling studies in submicron Al particles using valence electron energy-loss spectroscopy in a transmission electron microscope
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10.1063/1.3609063
/content/aip/journal/jap/110/2/10.1063/1.3609063
http://aip.metastore.ingenta.com/content/aip/journal/jap/110/2/10.1063/1.3609063
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Bright-Field TEM image of an Al particle at room temperature. (b) Low-loss EELS spectrum of the Al particle at room temperature acquired at 0.05 eV/channel dispersion.

Image of FIG. 2.
FIG. 2.

(Color online) Plasmon energy of Al particle at different temperatures. Peaks are separated along the ordinate for clarity. The dotted line corresponds to the peak center of 15.3 eV at room temperature. Note the peak shift and broadening with temperature.

Image of FIG. 3.
FIG. 3.

Plot of the plasmon energy as a function of temperature during heating of a solid Al particle. Overlaid is the data fit from Powell4 for Al.

Image of FIG. 4.
FIG. 4.

Plot of plasmon energy as function of temperature during solid-liquid transformation in an Al particle. The discontinuity at the melting temperature corresponds to a −6.4% change in the free-electron density.

Image of FIG. 5.
FIG. 5.

(a) (Color online) Plot of the volume plasmon energy as a function of temperature during supercooling of a liquid Al particle. The solid Al particle nucleates at 570 °C. (b) Inset in (a) shows the nonlinearity of the plasmon energy during supercooling.

Image of FIG. 6.
FIG. 6.

(a) Plasmon half-width (FWHM) vs temperature for an Al particle during solid-liquid transformation. (b) The FWHM behavior during supercooling of a liquid Al particle.

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/content/aip/journal/jap/110/2/10.1063/1.3609063
2011-07-27
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Melting and supercooling studies in submicron Al particles using valence electron energy-loss spectroscopy in a transmission electron microscope
http://aip.metastore.ingenta.com/content/aip/journal/jap/110/2/10.1063/1.3609063
10.1063/1.3609063
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