| Sound absorption property of open-pore aluminum foams |
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| 作者姓名： | 王录才 王芳 武建国 游晓红 |
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| 作者单位： | [1]Department of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China [2]Department of Materials Science and Engineering, Taiyuan University of Science and Techonology, Taiyuan 030024, China |
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| 基金项目： | Fonndatlon item： Project（042060） supported by the Science and Technology Program of Shanxi Province, China |
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| 摘 要： |
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| 关 键 词： | 吸声性能 铝 泡沫材料 材料属性 |
| 收稿时间： | 2006-07-28 |
| 修稿时间： | 2006-09-15 |
Sound absorption property of open-pore aluminum foams |
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| WANG Lu-cai, WANG Fang, WU Jian-guo, YOU Xiao-hong.Sound absorption property of open-pore aluminum foams[J].Transactions of Nonferrous Metals Society of China,2006,16(A03):1446-1449. |
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| Authors: | WANG Lu-cai WANG Fang WU Jian-guo YOU Xiao-hong |
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| Abstract: | The sound absorption property of aluminum foam was studied by testing its sound absorption coefficients using standing wave tube method. The open-pore aluminum foams were prepared by infiltration process, with pore size of 0.5 mm to 3.2 mm and porosity of 54.2% to 77%. The frequency of indicted sound wave was ranging from 125 Hz to 10 kHz. The results show that the average values of sound absorption coefficients are all over 0.4 and the aluminum foam has better sound absorption property, its coefficients is influenced by frequency and pore structure, and reaches the maximum at about 1 kHz, with increasing porosity and decreasing cell diameter the sound absorption coefficient values increase. |
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| Keywords: | aluminum foam sound absorption property sound absorption coefficient pore structure |
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