Journal
MATERIALS SCIENCE AND TECHNOLOGY
Volume 23, Issue 4, Pages 502-504Publisher
MANEY PUBLISHING
DOI: 10.1179/174328407X161114
Keywords
Al foam; Al-Al2O3 composite; mechanical properties; sintering
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The sintering and dissolution process (SDP) was used to produce the fine open cell Al-Al2O3 composite and pure Al foams with the relative density of 0.25-0-40 and the pore size of 112-400 mu m. The composite foam exhibited much higher yield strength and Young's modulus than the pure Al foam, and thus had an elevated plateau stress. Moreover, the composite foam showed a unique dependence of the compression stress on the pore size, i.e. it increased with increasing pore size, which was quite different from that for the common metal foams.
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