Foam yesimbi chimiro chenhare chinosanganisira simbi yakasimba (kazhinji aluminium) ine mapores akazadzwa negasi anosanganisira chikamu chikuru chevhoriyamu. Iyo pores inogona kuvharwa (yakavharwa-sero foam) kana yakabatana (yakavhurika-sero foam). Iyo inotsanangura hunhu hwemafuro esimbi ndeye yakakwira porosity: kazhinji chete 5-25% yevhoriyamu ndiyo base simbi, ichiita izvi ultralight zvinhu. Kusimba kwechigadzirwa kunokonzerwa nemutemo we-square-cube.

Metallic foams anowanzo chengetedza humwe humiro hwezvinhu zvavo zvekutanga. Furo rakagadzirwa nesimbi isingabatike rinoramba risingabatike uye rinowanzo shandiswa patsva sechinhu chepasi. Coefficient yayo yekuwedzera kwekupisa kwakafanana nepo thermal conductivity inogona kuderedzwa.

Kunyangwe akawanda patents achitsanangura zvinogoneka zvetopological zvimiro, zvinoumba zvinhu, uye nzira dzekugadzira, mafuro esimbi haagone kutorwa sechinhu uye vashoma vagadziri vekutengesa varipo pasi rese.