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. 2015 Sep 11;8(9):6085–6095. doi: 10.3390/ma8095292

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© 2015 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/4.0/).

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Scanning electron microscope (SEM) Micrographs and energy dispersive X-ray spectroscopy (EDS) dot maps of Mg-AZ91D/Al₂O₃ (0.425–0.5 mm) syntactic foam; (a) polished cross-section showing filled and empty hollow particles; (b) upper portion of left side sphere (within dashed box in Figure 5a) showing physical and mechanical bonding at the Mg/Al₂O₃ interface; (c) region between spheres (within dashed box in Figure 5a) showing physical and mechanical bonding at the Mg/Al₂O₃ interface.