School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China;
School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China;
Institute of Acoustics, Chinese Academy of Sciences, Beijing 100080, China;
School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China;
Institute of Acoustics, Chinese Academy of Sciences, Beijing 100080, China;
Institute of Acoustics, Chinese Academy of Sciences, Beijing 100080, China;
Al-Si closed-cell aluminum foam; bare board; sound reduction index(R); density; thickness;