Ọfụfụ ọla bụ ihe mejupụtara ọla pụrụ iche nke nwere oghere ikuku ụfụfụ. Dị ka ya pụrụ iche structural e ji mara, ụfụfụ metal nwere usoro magburu onwe uru dị ka ala ikwu njupụta, ezi ọkụ na-eguzogide, ezi mkpọtụ na ụda Mbelata arụmọrụ na ike mgbari na banye redio ebili mmiri, wdg Ọ bụ ọhụrụ klas nke ihe na-eji nwayọọ nwayọọ. na-etolite yana usoro mmepe teknụzụ dị elu nke ndị mmadụ na-ejikarị na mbara igwe, akụrụngwa petrochemical na usoro mmepụta mmepe mmepụta ihe.

Porosity
Porosity bụ oke nke olu nke porosity niile dị n'ime akụkụ ahụ nke porous ruo na mkpokọta nke akụkụ ahụ nke porous, na-atụlekarị nha nke oghere interstitial nke ahụ.
The porosity nke metal ụfụfụ na-enwetakarị ihe karịrị 90%, na nwere ụfọdụ mkpakọ ike na ekwe stiifness nke porous Ọdịdị metal ihe. Ụdị ígwè a nwere nnukwu porosity, na dayameta nke porosity ruru na ọkwa mm.