SNOECK, Etienne; MAJIMEL, Jérôme; RUAULT, M. O.; HŸTCH, Martin

doi:10.1063/1.2216791

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SNOECK, Etienne
Centre d'élaboration de matériaux et d'études structurales [CEMES]

MAJIMEL, Jérôme
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Gestion Territoriale de l'Eau et de l'environnement [UMR GESTE]

RUAULT, M. O.
Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse [CSNSM]

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Journal of Applied Physics. 2006, vol. 100, n° 2, p. 023519 (5 p.)

American Institute of Physics

Resumen en inglés

Iron-9% chromium alloy of controlled purity and microstructure was helium implanted and studied using transmission electron microscopy and electron holography (EH). Fresnel imaging is compared with electron holography for a set of identical helium bubbles of size 2–4 nm. Electron holography reveals that the bubbles are, in fact, faceted and the lateral and projected dimensions of the cavities are measured. Current measurements allow the detection of 1 nm diameter bubbles using EH. The merits of conventional and holographic techniques are discussed and future improvements anticipated. Electron holography seems to be the ideal technique for investigating the morphology of helium bubbles and cavities in general.< Leer menos

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Direct observation of dislocations and other defects

Transmission electron microscopy

Electron holography

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Characterization of helium bubble size and faceting by electron holography

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