Journal
SCRIPTA MATERIALIA
Volume 59, Issue 6, Pages 619-622Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2008.05.018
Keywords
casting; metal-matrix composites (MMC); mechanical properties; graphite
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SiC/Gr/Al composites were fabricated by squeeze casting with graphite volume fractions of 3-7% and particles size of 1, 6, 10, 20 and 70 mu m. No Al4C3 brittle interfacial product could be detected by transmission electron microscopy. With increasing volume fraction and particle size of graphite, the tensile strength (sigma(b)) decrease from 420 to 235 MPa and the elastic modulus (E) decrease from 166 to 116 GPa. These changes were in close accordance with the linear function: E = 224 sigma(b) + 61,695. (C) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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