What are the characteristics of ultra thick foam nickel?

overtake thick Foam nickel have What Features ?
first , it of light weight . same volume and size of Metal , contain of pores More and more many , and cross big lighter . when Porosity achieve90% hour , most Metal All Compare consubstantial product of water light . when Porosity achieve90% above hour , iron At once Can become Foam iron float exist water surface superior . However , pores of size as well as they whether Evenly distributed exist Metal middle also Very heavy want . otherwise , even though Metal of Porosity Again high , also possible Unable float . therefore , how make Aperture distributed Uniform , yes overtake thick Foam nickel manufacture of The essential and difficulty question . Secondly , strength along with Porosity of Increase and decline , exist big pressure Down easy occur Larger deformation , therefore overtake thick Foam nickel of strength along with Porosity of Increase and reduce , exist big pressure Down easy occur Larger of deformation , therefore overtake thick Foam nickel of Aperture distributed Uniform . thick of Foam nickel have good of energy absorb Function . third , heat conduction coefficient along with Porosity of Increase and reduce . if Porosity achieve50% above , Heat Conduction Will decline Dozens of times . therefore heat conduction speed Very slow . also , overtake thick Foam nickel exist compare Width of frequency scope Inside have good of Sound absorption characteristic , electromagnetic waves shield ability powerful , heat resistant Function protrude .