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In situ determination and imaging of physical properties of metastable and equilibrium precipitates using valence electron energy-loss spectroscopy and energy-filtering transmission electron microscopy
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10.1063/1.2437576
/content/aip/journal/jap/101/5/10.1063/1.2437576
http://aip.metastore.ingenta.com/content/aip/journal/jap/101/5/10.1063/1.2437576

Figures

Image of FIG. 1.
FIG. 1.

and vs Cu concentration in Al–Cu solid-solution alloys, see Refs. 2 and 14. The solid line represents a least-squares-fitted linear regression (LSF-LR); correlation coefficient .

Image of FIG. 2.
FIG. 2.

(a) , (b) electron density at the boundary of WS cells, in density units ; and (c) average for 58 polycrystalline metals, B, C, Si, and Ge, single crystal KKR-LDF, and fe-calculated vs , see Refs. 8, 11, 12, 18, and 19. Solid, dashed, and dotted lines represent LSF-LRs, , where , . Dotted line in (b) is calculated as and one in (c) is derived from Eq. (4).

Image of FIG. 3.
FIG. 3.

In situ TEM, transformation: (a) thick precipitates in an matrix at and (b) the same area at , showing phase as an enclosed precipitate and the matrix. In situ VEEL spectra from (a) the precipitates and (b) matrix acquired at , 300, and , respectively.

Image of FIG. 4.
FIG. 4.

(a) TEM and VEELS of thick precipitates (2 and 3, partially oxidized and hydrolyzed ) in matrix (1), . (b) map derived by rescaling the ratio image within the range followed calculation of for each pixel. Rectangular box indicates a profile (insets 1–3) taken with a integration window across the precipitate and adjacent matrix.

Tables

Generic image for table
Table I.

Experimentally determined elastic constants and bonding electron densities of phase and matrix in comparison with available literature data (Refs. 21 and 22).

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/content/aip/journal/jap/101/5/10.1063/1.2437576
2007-03-07
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: In situ determination and imaging of physical properties of metastable and equilibrium precipitates using valence electron energy-loss spectroscopy and energy-filtering transmission electron microscopy
http://aip.metastore.ingenta.com/content/aip/journal/jap/101/5/10.1063/1.2437576
10.1063/1.2437576
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