不锈钢纤维复合材料吸声性能研究  

Study of Stainless Steel Fibers Composite Materials on Sound Absorption Performance

作　　者：敖庆波[1] 汤慧萍[1] 王建忠[1] 支浩[1] 马军[1] 鲍腾飞[1] 

机构地区：[1]西北有色金属研究院金属多孔材料国家重点实验室,西安710016

出　　处：《材料导报》2014年第12期66-69,共4页Materials Reports

基　　金：国家重点基础研究发展计划(973计划)(2011CB610302);国家自然科学基金(51134003;51201139)

摘　　要：针对电子元器件对多孔复合隔声薄板的高效隔声应用要求,以316L不锈钢纤维为原料通过真空烧结法制备出不同孔隙结构的多孔材料,并与穿孔板制成复合结构,重点研究了多孔材料孔隙结构参数及复合形式对吸声性能的影响,以达到提高复合吸声材料吸声性能的目的。结果表明:将优化的穿孔板与多孔材料复合构成吸声结构,有效地提高了中低频率吸声性能(<3000Hz),吸声系数最大提高至0.8。Application of thin porous plate with excellent sound insulation in the field of electronic components, the porous materials were prepared using 316L stainless steel fibers by sintering process. Sound absorbing structure was composed from perforated plate and porous materials. The sound absorption performance of the fiber porous ma terials was tested, and the influences of pore structure and the composite patterns were investigated to optimal the performance of acoustic enclosure. Attempted achieve the requirement of electronic components to noise through enhan- cing sound absorbing coefficient. The results indicated that sound absorption composite structure with perform plate and porous materials had obviously improved sound absorbing performance of stainless steel fibrous porous materials under frequency of 3000 Hz. And the maximum sound absorbing coefficient of the gradient stainless steel fiber porous materials is 0. 8.

关 键 词：不锈钢纤维复合材料 穿孔板 吸声性能 

分 类 号：TB535.1[理学—物理]