Journal
MATERIALS CHEMISTRY AND PHYSICS
Volume 85, Issue 2-3, Pages 438-443Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.matchemphys.2004.02.002
Keywords
particulate-reinforced aluminum composites; powder processing; tensile properties
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The hardness and tensile behaviors of aluminum matrix composites reinforced with nanometric Al2O3 particulate have been found to increase with the volume fraction of the reinforcement. Above 4 vol.% of Al2O3, however, the strengthening effect leveled off because of the clustering of Al2O3. The main strengthening mechanism was Orowan strengthening of effective nano-Al2O3 particles evenly distributed in the matrix. (C) 2004 Elsevier B.V. All rights reserved.
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