304不锈钢纤维/ZL104铝合金复合泡沫的孔结构、力学、吸声性能及其机理

苗琪, 左孝青, 周芸, 王应武, 郭路, 王坦, 黄蓓

Pore Structure, Mechanical and Sound Absorption Performance for Composite Foam of 304 Stainless Steel Fiber/ZL104 Aluminum Alloy

MIAO Qi, ZUO Xiaoqing, ZHOU Yun, WANG Yingwu, GUO Lu, WANG Tan, HUANG Bei

表4 孔隙率不同的泡沫试样的平均吸声系数

Table 4 Average sound absorption coefficient of composite foam with different porosity

Porosity/% 77 80 82 84 86 Alloy foam(1#~5#) - - 0.810 - - Composite foam(6#~10#) 0.829 0.870 0.893 0.888 0.832