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- W2393047295 abstract "The sound absorption properties of ZA27 infiltration casting foams with three kinds of particular pore structures such as wide aperture, layered gradient and layered periodical were studied. The results show that, with increasing the frequency, the sound absorption coefficient increases in low frequency region, while decreases to minimum value and then moves up in intermediate frequency region, and tends to be gentle in high frequency region. The sound absorption coefficient of alloy foam with wide aperture is average improved 0.025, along with aperture varied and porosity increased; the sound absorption property of alloy foam with multiple layers gradient pore structure is improved0.027, compared the one that has few layers; the sound absorption property of alloy foam with layered periodical pore structure is average increased 0.027, compared the one that has few layers. At low frequency, the sound absorption properties of alloy foams with particular pore structures are better than those of the Al-Si12 alloy foams." @default.
- W2393047295 created "2016-06-24" @default.
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- W2393047295 date "2014-01-01" @default.
- W2393047295 modified "2023-09-26" @default.
- W2393047295 title "Sound absorption properties of ZA27 alloy foams with particular pore structures" @default.
- W2393047295 hasPublicationYear "2014" @default.
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