Compressive property and energy absorption characteristic of open-cell SiCp/AlSi sub(9)Mg composite foams

Open-cell 4 vol.% SiCp/AlSi sub(9)Mg composite foams with different relative densities were fabricated by the infiltration process using NaCl preforms. The distributions of SiC particles in the cell wall were observed and compressive properties and energy absorption characteristic of the foams were...

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Bibliographic Details
Published in:Journal of alloys and compounds 2010-06, Vol.499 (2), p.227-230
Main Authors: Luo, Yanru, Yu, Sirong, Liu, Jiaan, Zhu, Xianyong, Luo, Yanhe
Format: Article
Language:English
Subjects:
Compressive properties
Density
Energy absorption
Foams
Particulate composites
Silicon carbide
Stress strain curves
Stress-strain relationships
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Summary:Open-cell 4 vol.% SiCp/AlSi sub(9)Mg composite foams with different relative densities were fabricated by the infiltration process using NaCl preforms. The distributions of SiC particles in the cell wall were observed and compressive properties and energy absorption characteristic of the foams were investigated. The results show that the yield stress and the energy absorption capacities of open-cell 4 vol.% SiCp/AlSi sub(9)Mg composite foams increase with the rising relative density. And the stress-strain curves of open-cell 4 vol.% SiCp/AlSi sub(9)Mg composite foams are not as smooth as that of aluminum foams due to the addition of SiC particles. The theory model used to describe the energy absorption capacity of the foams in different strain region was induced.
ISSN:0925-8388
DOI:10.1016/j.jallcom.2010.03.172