Preparation and Sound Absorption Property of Al-Si12 Alloy Foam Core Muffler
Al-Si12 alloy foams were fabricated by filtration method, and the Al-Si12 alloy foam core mufflers were made by using the fabricated Al-Si12 alloy foams. The preparation and sound absorption property of Al-Si12 alloy foam core muffler has been studied. The results show that sound absorption property of Al-Si12 alloy foam core muffler increases with the decreasing of pore diameter and the widening of the pore diameter range of Al-Si12 alloy foam core. Being superior to conventional sound-absorbing materials core mufflers, Al-Si12 alloy foam core muffler especially fits in noise control in hot, wet, and open-air environments.
Yanguo Shi and Jinlong Zuo
Y. W. Wang et al., "Preparation and Sound Absorption Property of Al-Si12 Alloy Foam Core Muffler", Advanced Materials Research, Vols. 183-185, pp. 1687-1691, 2011