Abstract

The  metallic  foams  have  lower  density,  and  important  physical,  mechanical,  thermal  and  acoustic  properties,  has  been  highlighted  in  its  use  in  innovative  technologies.  As  a  subgroup of the class of metallic foams, the syntactic metallic foams which consists of the addition of hollow ceramic balloons in a metallic matrix in aluminum Al-5052 by process of tixoinfiltration. The microstructure was studied by optical and electron microscopy extended by energy-dispersive X-ray spectrometry, while the basic mechanical properties were  mapped  by  standardized  compression  tests.  Therefore,  a  syntactic  foam  design  was  developed  in  this  work,  where  we  obtained  a  30%  reduction  in  density  and  a  reasonable  increase in hardness due to the homogeneous dispersion of the ceramic balloons.

Keywords

tixoinfiltration, aluminum Al-5052, ceramic balloons, syntactic metallic foams