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论文:2014,Vol:32,Issue(3):358-372 |
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引用本文： |
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邹伟仁, 徐颖, 方庆川, 罗璐, 王常力. 一种新型多孔玻璃的制备及吸声性能研究[J]. 西北工业大学 |
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Zou Weiren, Xu Ying, Fang Qingchuan, Luo Lu, Wang Changli. Preparation and Absorbing Properties of a Novel Porous Glass[J]. Northwestern polytechnical university |
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| 一种新型多孔玻璃的制备及吸声性能研究 |
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| 邹伟仁1, 徐颖1, 方庆川2, 罗璐1, 王常力1 |
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1. 西北工业大学 航海学院, 陕西 西安 710072;
2. 深圳中雅机电实业有限公司, 广东 深圳 518031 |
| 摘要: |
| 采用盐模烧结工艺制备多孔玻璃材料,研究了孔隙率、孔径大小、厚度和后空腔深度等因素对吸声性能的影响。结果表明,提高孔隙率和增加厚度都有利于提高材料的吸声性能;孔径不易过大和过小,存在最佳值;后空腔深度对薄板的影响显著,而对厚板的影响较小。制备了孔径为0.18 mm,孔隙率为77.8%,厚度为30 mm的多孔玻璃,测试时无后空腔深度,材料的平均吸声系数为0.8,吸声系数大于0.5的起始频率为488 Hz,吸声系数曲线为平坦的高吸声曲线,这种多孔玻璃具有卓越的吸声性能。 |
| 关键词:
多孔玻璃
吸声性能
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| Preparation and Absorbing Properties of a Novel Porous Glass |
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| Zou Weiren1, Xu Ying1, Fang Qingchuan2, Luo Lu1, Wang Changli1 |
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1. College of Marine Science and Technology, Northwestern Polytechnical University, Xi'an 710072, China;
2. Shenzhen Zhongya Mechanic & Electric Industry Co., Ltd, Shenzhen 518031, China |
| Abstract: |
| Porous glass material is prepared by burning glass powder and soluble salt. The effects of its porosity, pore diameter, thickness and cavity depth on sound absorption properties are experimentally studied. The study re-sults, given in Figs. 1 through 5, and their analysis show preliminarily that:the sound absorption properties of por-ous glass material are enhanced with its increasing thickness and porosity;its pore diameter should not be too large or too small and has its own optimal value;the effect of cavity depth of its thin panel on sound absorption properties is more significant than that of its thick panel. The porous glass sample whose pore diameter is around 0?18 mm, whose porosity ratio is 77?8% and whose thickness is 30 mm is prepared;it has no cavity depth during the experi-ment;its average sound absorption coefficient is 0?8;the porous glass material whose sound absorption coefficient curve is high and flat, whose sound absorption coefficient is more than 0?5 and whose initial frequency is 488 Hz has excellent sound absorption properties. |
| Key words:
absorption spectra
porosity
porous glass material
sound absorption properties
pore diameter
cavity depth
sound absorption coefficient
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| 收稿日期: 2013-09-10
修回日期:
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| DOI: |
| 基金项目: 西北工业大学研究生创业种子基金(Z2013013)资助 |
| 通讯作者:
Email： |
| 作者简介: 邹伟仁(1987-),西北工业大学硕士研究生生,主要从事吸声材料研究。
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| 邹伟仁 在本刊中的所有文章 |
| 徐颖 在本刊中的所有文章 |
| 方庆川 在本刊中的所有文章 |
| 罗璐 在本刊中的所有文章 |
| 王常力 在本刊中的所有文章 |
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