In addition the porosity of porous aluminum increasing or pore size decreasing, the soundabsorbingcoefficient also increases.
另外降低多孔铝合金的孔隙尺寸和增加其孔隙率，均会使多孔铝合金的吸声系数增大。
3
With light, small coefficient of thermal conductivity, sound-absorbing performance is good, non-flammable, chemical stability is good wait for a characteristic.