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Review on Application of Aluminum Foam in Sound Absorption Technology

Author : Shashikant V. Raut, V. S. Kanthale and B. S. Kothavale

Pages : 178-181;
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This paper presents the study of review of aluminum foam application in sound absorption technology fabrication method, properties and application of aluminum foam discus in studies. The Open and semi-opened aluminum foams are good sound absorbers and closed-cell aluminum foams are poor sound absorbers. Closed-cell aluminum foams can have good sound absorption capacity after some processes such as hole drilling, rolling and compression. The foam thickness increased then the sound absorption peak appeared at low frequency is shifted towards lower frequencies as the sample thickness increased. The sound absorption capacity also depends on pore size and pore opening size. The pore opening size decreasing the height of low-frequency peak shifted towards lower frequencies. The increasing the pore size with the height of low-frequency peak increased.

Keywords: sound absorption technology, aluminium foam.


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