X-ray tomographic imaging of Al/SiCp functionally graded composites fabricated by centrifugal casting

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Abstract

The present work refers to an X-ray microtomography experiment aiming at the elucidation of some aspects regarding particle distribution in SiC-particle-reinforced functionally graded aluminium composites. Precursor composites were produced by rheocasting. These were then molten and centrifugally cast to obtain the functionally graded composites. From these, cylindrical samples, around 1 mm in diameter, were extracted, which were then irradiated with a X-ray beam produced at the European Synchrotron Radiation Facility. The 3-D images were obtained in edge-detection mode. A segmentation procedure has been adapted in order to separate the pores and SiC particles from the Al matrix. Preliminary results on the particle and pore distributions are presented. (C) 2002 Elsevier Science B.V. All rights reserved.
Original languageEnglish
Pages (from-to)295-302
Number of pages8
JournalNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
Volume200
DOIs
Publication statusPublished - 1 Jan 2003

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