Sound Absorption Properties of Aluminum Sponges Manufactured by Infiltration Process
In this paper, the sound absorption properties of aluminum sponges manufactured by infiltration process have been studied. The results show that the sound absorption factor α changes in function of pore size. Additionally, the sound absorption factor α was sensitive to the frequency range measured and it was depending of the thickness sample. It was found that the interconnected porosity plays an important role increasing the sound absorption properties of the aluminum sponges studied.
Sihai Jiao, Zhengyi Jiang and Jinglong Bu
P. M. Fernández et al., "Sound Absorption Properties of Aluminum Sponges Manufactured by Infiltration Process", Advanced Materials Research, Vols. 146-147, pp. 1651-1654, 2011