摘要
研究中对低压渗流制备方法进行了改进，并对制备的样品用驻波管法进行了吸声系数的测定。结果表明，样品随孔径的减小、空隙率的增大，综合吸声系数有增大的趋势。
The sample of foam aluminium alloy was prepared by means of uper-pressure seeping method rather than low-pressure seeping method. Sound absorbent properties of the samples has been measured with standing wave method, the measurement result showed that the complex sound absorbent performace of alloy matreial got improved as pore size inside decreased and voidage increased.
出处
《兵器材料科学与工程》
CAS
CSCD
北大核心
1998年第1期48-51,共4页
Ordnance Material Science and Engineering
基金
山东省自然科学基金
关键词
泡沫铝
吸声系数
上压渗流铸造法
泡沫金属
foam aluminium, sound absorbent coefficient, upper-pressure seeping
