Njirimara nhazi nke ihe eji eme ụfụfụ aluminom

Ọfụfụ aluminom bụ nke ihe mejupụtara yaaluminum metalihe matrix na pores. Usoro nhazi nke ụfụfụ aluminom gụnyere dayameta pore, porosity ma ọ bụ njupụta ikwu, okirikiri pore, na mpaghara elu akọwapụtara. Njikọ dị n'etiti ihe owuwu pore nwere ike nkewa dị ka ụfụfụ aluminum mepere emepe naụfụfụ aluminum mechiri emechi, The pore nkesa nke aluminum ụfụfụ na-abụkarị random, ma kpọmkwem usoro nwere ike nweta a n'usoro nkesa. Ọdịdị nke pores nwere ike ịbụ ihe owuwu mechiri emechi, ihe owuwu nke oghere, ma ọ bụ ngwakọta nke abụọ. The pores nkeụfụfụ aluminum na-emeghe cellejikọrọ, ebe pores nke mechiri emechi-cell aluminum foam bụ onwe ya ma kewapụ onwe ya na aluminom foam nwere ike na-ewere dị ka ihe mejupụtara ihe mejupụtara nke abụọ nkebi: aluminum matrix na pores. Ihe owuwu emechi emechi: a na-emechi mgbidi pore kpamkpam na ibe ya, a na-ekpuchikwa gas na pores, nke nwere ụda dị mma na mmetụta mkpuchi okpomọkụ ma na-ejikarị eme ihe n'inwe ike, mgbochi mgbochi, na mpaghara ndị ọzọ. Ọdịdị emeghe-cell: a na-ejikọta mgbidi pore ahụ, na-enwe ezigbo ikuku ikuku na ikuku mmiri, nke kwesịrị ekwesị maka nzacha, ikpo ọkụ ọkụ, na ọnọdụ ndị ọzọ. Ebe ọ bụ na usoro nhazi nke ụfụfụ aluminom na-ekpebi kpọmkwem arụmọrụ nke ụfụfụ aluminom, na ngwa bara uru, a ga-ahọrọ ihe ndị na-emepụta ụfụfụ aluminom nwere ihe kwesịrị ekwesị dị ka ngwa dị iche iche si dị. N'iji ya tụnyere ihe ọla eji eme omenala, aluminom ụfụfụ na-eji nnukwu pore size (pore size D = 0.2 mm ka 8 mm), elu porosity (porosity 63% ka 90%), na obere njupụta. The ọkpụkpụ Ọdịdị nkealuminom ụfụfụna-egosi nkesa reticular akụkụ atọ, nke nwere akụkụ siri ike nke aluminom alloy. Nke a reticulation na-enye ihe magburu onwe n'ibu Njirimara, dị ka elu kpọmkwem ike na ezi ike absorption. N'elu elu nke ụfụfụ aluminom na-abụkarị ihe siri ike na pores a na-ahụ anya, ma enwere ike imeziwanye ọdịdị elu site na ọgwụgwọ post (dịka ọmụmaatụ, mkpuchi, machining).

N'ihe niile, njirimara nhazi nke ụfụfụ aluminom bụ porosity ya, ịdị arọ na ike dị elu, yana ọkpụkpụ reticulated akụkụ atọ. Ngwongwo ihe ndị a na-ekpebi ngwa ya sara mbara n'ọhịa nke mkpuchi ụda na ikpo ọkụ, nnabata ike, nguzogide mmetụta, filtration, na ihe owuwu dị fechaa.

Njirimara nhazi nke aluminum foamed: (a) aluminom nke nwere ụfụfụ nke mepere emepe; (b) Aluminom nke nwere ụfụfụ nke dị nso