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High resolution transmission electron microscopy characterization of fcc → 9R transformation in nanocrystalline palladium films due to hydriding
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10.1063/1.4793512
/content/aip/journal/apl/102/7/10.1063/1.4793512
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/7/10.1063/1.4793512
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Figures

Image of FIG. 1.
FIG. 1.

(a) BF micrograph of plan-view FIB specimen prepared from as-deposited Pd film. Growth twins are shown by white arrows. Upper-right inset SADP shows the fcc Pd crystalline structure. Lower-left inset shows the grain width distribution of as-deposited Pd film. (b) HRTEM micrograph of an as-deposited cross-section specimen showing ∑3{111} CTBs and ∑3{112} ITBs. (c) GPA map of the HRTEM image of (b) and (d). Evolution of the internal stress as a function of time during a hydriding cycle recorded at PH2 = 97.5 mbar.

Image of FIG. 2.
FIG. 2.

(a) 〈100〉 HRTEM micrograph of a nc grain of Pd thin film before hydriding showing a ∑3{111} coherent CTB. (b) HRTEM image showing ∑3{111} CTBs after hydriding. Note the clear loss of the TB coherency after H loading due to the interaction with lattice dislocations. (c) GPA map from the region indicated by dashed lines in (b) showing the position of lattice dislocations.

Image of FIG. 3.
FIG. 3.

(a) 〈100〉 HRTEM image of 9R band embedded in the fcc Pd matrix after hydriding. (b) 〈100〉 HRTEM image of narrowly dissociated ∑3{112} ITBs with the corresponding FFT pattern showing the local 9R structure. (c) Collated GPA map of the region indicated by solid lines in the HRTEM image of (b). (d) Enlargement of the region of (b) indicated by dashed lines showing a (defected) atomic stacking sequence of the 9R phase.

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/content/aip/journal/apl/102/7/10.1063/1.4793512
2013-02-22
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: High resolution transmission electron microscopy characterization of fcc → 9R transformation in nanocrystalline palladium films due to hydriding
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/7/10.1063/1.4793512
10.1063/1.4793512
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