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Application of three-dimensional electron tomography using bright-field imaging—Two types of Si-phases in Al–Si alloy

Author(s): Kenji Kaneko, Ryo Nagayama, Koji Inoke, Etsuko Noguchi and Zenji Horita

Journal: Science and Technology of Advanced Materials
ISSN 1468-6996

Volume: 7;
Issue: 7;
Start page: 726;
Date: 2006;
Original page

When a dilute amount of Si is added to Al, it results in the precipitation of Si-phases, either planar- and/or rod-type, depending on the ageing conditions. Observation of these phases had been carried out by TEM two dimensionally so far; nevertheless information of the thickness as well as the distribution had been neglected in the past. In this paper, a combination of electron diffraction, high-resolution transmission electron microscopy, and three-dimensional electron tomography was applied to characterize the morphologies and the orientation relationship of the Si-phases in an Al–Si alloy.
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