Research sound absorption performance of amorphous powder/butyl rubber composite slice

Study on IIR slice of 1mm,discuss the content or particle-size of amorphous powder effects on material' property of sound absorption.It is founded that material' the property of sound absorption is better when the quality proportion of Fe73.5Cu1Nb3Si13.5B9 amorphous powder and butyl rubber is 1.50 by controlling the particle-size of Fe73.5Cu1Nb3Si13.5B9 amorphous powder is 100 mesh numbers.Material' the property of sound absorption is better when the mesh numbers are 200 by controlling the quality proportion of Fe73.5Cu1Nb3Si13.5B9 amorphous powder and butyl rubber is 0.50.The sound absorption coefficient increase by adding wire netting and the frequency-band widen.