Effect of Cu Content on Microstructure and Properties of Al2O3-SiO2 Fiber Reinforced Aluminum Matrix Composites

Hong Yu Xu; Lin Geng; Qing Chang Meng

doi:10.4028/www.scientific.net/MSF.475-479.873

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HomeMaterials Science ForumMaterials Science Forum Vols. 475-479Effect of Cu Content on Microstructure and...

Effect of Cu Content on Microstructure and Properties of Al₂O₃-SiO₂ Fiber Reinforced Aluminum Matrix Composites

Abstract:

In this paper, pure aluminum and Al-Cu (1%, 3% and 5% mass.) alloy matrix composites reinforced with 40Vol% Al2O3-SiO2 sort fiber were fabricated by Squeeze-casting technique. Microstructure and tensile properties of the composites were investigated by means of SEM, EPMA, TEM and tensile tests. It was found from the experimental results that when pure aluminum, which was added into Cu elements, is used as matrix, chemical reaction occurred at the interface between amorphous SiO2 and matrix due to the Cu element diffusion and enrichment towards the sort fiber surface. Results indicated that with the increasing of Cu content the ultimate tensile strength decreased firstly then increased continuously.

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Periodical:

Materials Science Forum (Volumes 475-479)

Pages:

873-876

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.475-479.873

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Online since:

January 2005

Authors:

Hong Yu Xu, Lin Geng, Qing Chang Meng

Keywords:

Composite, Interfacial Bonding, Microstructure, Tensile Properties

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