摘要
综述了吸声材料的研究、应用发展趋势,平均吸声系数较低是制约泡沫陶瓷在吸声降噪工程领域应用的关键因素。研究了泡沫材料吸声机理,提出对泡沫陶瓷进行有机材料掺杂修饰,增强粘滞吸收、弛豫吸收和热传导作用,提高对声能的吸收及转化效率以提高吸系数。
Sound absorbing materials and the trend of their application were reviewed, and low average absorption coefficient became a significant factor that confined the use of foam ceramics in the field of noise control. Study on the mechanisms of sound absorption by using foam materials, presents a new technique of polymer modifying foam ceramics to strengthen their viscosity, relaxation and thermal conductivity and to improve their acoustic properties.
出处
《陶瓷学报》
CAS
北大核心
2009年第3期373-376,共4页
Journal of Ceramics
关键词
有机掺杂
泡沫陶瓷
吸声系数
polymer doping
foam ceramics
sound absorption coefficient
