摘要
研究了通孔多孔铝合金的超声衰减性能。结果表明：通孔多孔铝合金在1～10MHz范围内是一种具有良好超声衰减性能的轻质材料,超声衰减系数α随孔径d的减小、孔隙率P_s减小和比表面积S_v的增加而增大。
Ultrasonic attenuation capacity of porous Al alloy with high specific strength was studied. That alloy is a light material with good ultrasonic attenuation capacity between 1- 10 MHz. Ultrasonic attenuation coefficient a of porous Al alloy increases with decreasing pore diameter d, with decreasing porosity Ps and with increasing specific surface Sv.
出处
《机械工程材料》
CAS
CSCD
北大核心
2006年第4期48-50,共3页
Materials For Mechanical Engineering
基金
国家自然科学基金重点资助项目(50231010
50471031
90205005
50081002)
关键词
通孔多孔铝合金
超声衰减性能
孔结构参数
porous Al alloy
ultrasonic attenuation capacity
porous structural parameter
