I-foam ceramic inendawo ekhethekileyo kwinkqubo yesayensi yezinto eziphathekayo kunye nophuhliso lwayo. Uxinano oluncinci, ukuvuleka kunye neempawu zokugquma ezibalaseleyo zezinto ezibonakalayo zizenza zibe luncedo kwiindlela ezahlukeneyo zokusetyenziswa. Inqaku elingezantsi lichaza iinkalo ezahlukeneyo kwaye lichaza iindlela ezahlukeneyo zokusebenzisa i-foam.Ukuveliswa kweseramikhi.
Yintoni eyenza amagwebu e-ceramic kunye ne-metal adume?
Amagwebu nokuba yi-ceramic okanyeamagwebu esinyithiZenziwe ngokuzalisa igesi kwiimbobo zezinto ezisisiseko. Iimbobo zingavalwa okanye zivalwe ngokwemvelo okanye ziqhagamshelwe kwaye zishiywe zivulekile. Into ephambili echaza uphawu lwefoam kububanzi beembobo ezinazo. Ngokubanzi, iimbobo okanye izithuba ezingenanto ziqala kwi-75 - 90% yezinto ezisisiseko.
Iifoam ze-aluminium vs iifoam ze-ceramic: Uthelekiso
Amagwebu e-aluminium
Ifoam yesinyithi ngamafutshane yintsimbi ezele ziindawo zegesi ezinemingxuma eziqulathe ubukhulu bayo obukhulu. Iifoam zesinyithi ezikumgangatho ophezulu zihlala zenziwe ukuze i-aluminium ibe yintsimbi esisiseko.igwebu lesinyithiyenziwe nge-aluminium apho iimbobo zenziwa yigesi kwisinyithi esishushu. Igesi okanye isixhobo sokunyibilikisa izinto zingasetyenziselwa ukwenza iimbobo kwi-aluminium enyibilikisiweyo.
Ulwakhiwo lweifoam yesinyithi ye-aluminiumineefayibha ze-aluminium ezidityanisiweyo eziziindidi ezimbini ngokusisiseko. Iindidi ezimbini zeIfoam yesinyithi ye-aluminiumzi-open celled type zeigwebu le-aluminiyamokanye uhlobo lweseli evaliweyo. Eyona nto isetyenziswa kakhulu ngala ma-foam kukuba la ma-foam e-aluminium ahlala eguquguquka ngokubhekisele kwiimpawu ezilungileyo umntu azifunayo. Ummandla omkhulu womphezulu, imo eyahlukileyo kunye nobunzima obulula ziimpawu ezikhangayo zeAmagwebu e-aluminium.
Iimpawu zeefoam ze-aluminium
Amagwebu e-aluminiumngokubanzi hlala ungatshisi emalangatyeni
Iigwebu le-aluminiyaminobukhulu obuphakathi kwe-2-11 mm kwiseli nganye kwaye inemibhobho ejikeleze i-70-90%
Ubukhulu befoam bungahluka ngokwezicelo kwaye bunika amandla angama-44 MPa
Iifoam yesinyithi ye-aluminiuminokumelana okukhulu kunesinyithi se-aluminium esiqhelekileyo, esimalunga ne-100 nangaphezulu.
Ukusetyenziswa kweeFoam zeAluminiyam
Ukhuseleko lweemoto luya luthandwa imihla ngemihla ngokuxhomekeka kwizixhobo ezikhaphukhaphu ukuzeigwebu le-aluminiyam.
Ukufunxwa kwesandiigwebu le-aluminiyamyenza izinto ezongeziweyo ezilungileyo kwimveliso yeemoto
Amagwebu e-aluminiumzikhaphukhaphu kwaye zisetyenziswa kwicandelo leenqwelo moya.
Amagwebu e-aluminiumzifanelekile kakhulu kushishino lwabayili njengoko zisebenza njengezinto ezifanelekileyo zokuseta xa zidityaniswa nomthi.
Yenziwa njani ifoam yesinyithi?
Indlela edumileyo yokuvelisaIfoam ye-aluminium okanye ifoam yesinyithiyindlela yokufaka umoya. Inyathelo lokuqala libandakanya ukulungiswa kwe-metal matrix composite kusetyenziswa ii-oxides ze-aluminium kunye ne-magnesium okanye i-silicon carbide. Nje ukuba i-melt yenziwe ngumoya, i-nitrogen okanye i-argon ifakwa nge-nozzle okanye ii-impellers ukuqinisekisa ukusasazwa okufanayo kumxube.
Enye indlela yokwenza amagwebu esinyithi kukusebenzisa i-ejenti yokuvuthela. Ukubola okubangelwa bubushushu kubangela ukuba i-ejenti yokuvuthela ikhuphe iigesi kwaye yenze imingxuma. Amashishini asebenzisa enye indlela yokwenza igesi eqinileyo e-eutectic ukuze ibangele ukuqhuma kwegwebu xa kukho i-hydrogen. Kwimveliso enjalo, ii-pores ziqala kwi-10 micrometer ukuya kwi-10 mm.
Amagwebu eseramikhi
Iifoam zeseramikhi ngenxa yesakhiwo sazo seseli zibe yinxalenye ebalulekileyo kwimveliso yezinto eziphathekayo. Ukwenziwa okulula kubandakanya ukusetyenziswa kweepolymers kunye ne-ceramic slurry. Umzimba uya kugcina iseramikhi kwisakhiwo sawo apho ubushushu obuphezulu kunye nepropati yokukhusela iye yanceda ngakumbi. I-ceramic foam inezicelo ezahlukeneyo ezifana nokukhusela ubushushu, ukukhusela umsindo kunye nezicelo ezahlukeneyo ezisebenzisa amandla amaninzi.
Iimpawu ze-Ceramic foams
Iifoam zeseramikhi zihlala zenziwe zizakhiwo zeseli ezinemibhobho yendalo. Ulwakhiwo lwenethiwekhi olunemilinganiselo emithathu kwelinye icala lubuthathaka kwaye lunezithuba ezibonakalayo okanye imibhobho kwizinto. Imibhobho kwiiseli imile okwesilinganiselo kwaye idla ngokulinganiswa ngeemilimitha ukuya kwii-micrometer. Nangona iifoam zeseramikhi ezinemibhobho ziqinile kwaye imibhobho ihlalwa ngumoya okanye yigesi ukuya kuthi ga kwi-95 - 96%.
Kukho iintlobo ezahlukeneyo zeefoam zeseramikhi ezenziwe ngeSilicon Carbide, Alumina, Zirconia, Titania kunye neSilica. Iifoam zeseramikhi zaziwa ngokukhanya kwazo. Zinomoya ovulekileyo ofanelekileyo kwiindawo ezikhethiweyo. Amandla okucinezela eefoam zeseramikhi aphezulu.
Ipropati yezi foam zeseramikhi izenza zibe lukhetho olufanelekileyo lokusetyenziswa kwemishini.
Ukusetyenziswa kwee-Ceramic foams
Izakhiwo ezincinci zeshishini le-ceramic zibe luncedo kwishishini le-elektroniki. Ziluncedo ekuveliseni izinto ezifana neebhetri, ii-electrode njl.njl.
Iimpawu zokwambathisa zeseramikhi zisetyenziselwa ukubonelela ngokumelana kakuhle nobushushu. Zingasetyenziswa njengezixhobo zokwakha ekukwambathiseni ukubonelela ngendima embaxa yokwambathisa nokuqina.
Iifoam zeseramikhi zingasetyenziselwa ukulawula ungcoliseko. Ukuvuleka kwamanzi kwenza zibe yinto efanelekileyo yokujongana nolawulo longcoliseko. Iifoam zeseramikhi zibonelela ngendawo engaphezulu yee-catalysts ukuze zixove iinxalenye ezibanjiweyo.
Iifoam zeseramikhi zikwasetyenziselwa ukunceda izakhiwo ezixhasayo emzimbeni womntu ngenxa yokuba ziyahambelana.
Iindlela zokwenza i-ceramic
Ezinye zeendlela ezidumileyo zokwenza amagwebu e-ceramic zinikwe apha ngezantsi:
Inkqubo yokufutha ngqo
Le nkqubo iqalwa ngokwenza umxube we-ceramic slurry olandelwa yi-foam. Nje ukuba i-polymerization yenziwe, i-mold iyasuswa kwaye i-foam eyenziweyo yomiswe kwaye kamva itshiswe. Le nkqubo idala iindawo ezingenanto ezinamandla ezinokumelana nomatshini ophezulu.
Le nkqubo incediswa yiarhente ekhupha igwebu eqala igwebu xa ixutywe kwi-ceramic slurry kamva izinziswe kulandele ukuqina. Ukwenziwa kwe-ceramic okusekelwe kwi-foam ngokuthe ngqo kwaziwa ngokuba kulula kwaye kuthembekile kwaye kuluncedo ekulawuleni ukubola. Ukuzinziswa ngokuqhelekileyo kwenziwa xa izongezo zihlolisiswe kakuhle.
Isicelo kunye neenzuzo
Isetyenziswa ngokubanzi kwishishini lesinyithi apho i-porosity idlala indima ebalulekileyo
Amagwebu anjalo asetyenziselwa ukufudumala
Indlela yokuphosa iGel
Xa kukho ukulingana kunye namandla aphezulu, kungcono ukusebenzisa ijeli yokusika.imveliso yeseramikhiLe nkqubo ilula kwaye iqaliswa ngokuxuba i-colloidal suspension ne-monomer enyibilikayo emanzini kunye ne-ejenti ye-foam. Emva kokuba i-polymerize, i-foam iyajiya. I-gel casting ivelisa amagwebu e-ceramic aqinileyo naqinileyo.
Isicelo kunye neenzuzo
Isetyenziselwa ukuvelisa izihluzi okanye iimembrane ezihlala ixesha elide kwimizi-mveliso yeekhemikhali
Amacandelo e-biomedical e-implants kunye nezakhiwo ezixhasayo
Le nkqubo iqinisekisa ulawulo lwe-porosity kunye nenqanaba eliphezulu lokufana.
Indlela yokukhuphela
Indlela yokuphindaphinda ibandakanya indlela yokwenzaimveliso yeseramikhiapho i-ceramic slurry igqunywe phezu kwe-foam. I-polymeric foam iyatsha kamva nge-Sintering. Oku kuya kufana ne-ceramic foam efana ne-polymeric foam ekuqaleni. I-ceramic foams eziveliswa yiteknoloji yokuphindaphinda zinamandla aphezulu okungena kwamanzi kwaye zinamandla amancinci.
Isicelo kunye neenzuzo
Isetyenziselwa ukuvelisa iijometri ezintsonkothileyo ezifana nokufakelwa kwamathambo kwicandelo lezonyango
Amashishini eemoto kunye nee-Aerospace asebenzisa iiseramikhi ezenziwe ngendlela yokukopisha ngenxa yobunzima bazo obulula.
Ukuqwalasela ngononophelo kule nkqubo kuqinisekisa ukuba akukho ziphene zingenanto ezikhoyo kwijometri ebalulekileyo yezinto ezisetyenzisiweyo.
Inkqubo yokuhlanganiswa kwesitatshi
Indlela yokuhlanganisa istatshiimveliso yeseramikhingokubanzi ixabisa kancinci kwaye ayibangeli tyhefu. Ilungele okusingqongileyo kwaye isebenzisa ubushushu obumalunga nama-300 ukuya kuma-600 degc xa itshiswa. Ubushushu buqinisekisa ukuba akukho ziphene zenzeka ngexesha lokwenziwa kwefoam yeseramikhi.
I-gelling agent efana nesitatshi somgangatho wokutya yongezwa kumgubo we-ceramic ize ixutywe namanzi acocekileyo. Emva koko umxube udlula kwiinkqubo ezifana nokuxuba, ukuphosa, ukujiya kunye nokomisa ekugqibeleni. Nje ukuba yomiswe, into eyenziweyo iyatshiswa kubushushu obuphezulu kuze kuvele i-ceramic foam.
Isicelo kunye neenzuzo
Iqinisekisa ukuba akukho ziphene ezingenanto
Indlela yokwenza i-ceramic enobuhlobo nokusingqongileyo
Indlela ye-Emulsion
Kwindlela ye-emulsion njengoko igama lisitsho, ii-emulsions zisetyenziselwa ukwenzaimveliso yeseramikhiukwenza amagwebu. Amasuntswana e-ceramic enziwa ukuba axhonywe kumxube owenziwe ngamalwelo amabini angaxutywanga. Nje ukuba i-emulsion yenziwe kwaye izinze, elinye inqanaba lolwelo liyasuswa ngokufuma okanye ngokutsha.
Isicelo kunye neenzuzo
Indlela ye-emulsion iqinisekisa ukubonelela ngokusebenza kakuhle kwesihluzo, ngoko ke iyaziwa kakhulu kwiinkqubo zokucoca.
Zisetyenziselwa ukwenza izinto zokukhusela ezinamagqabi kwaye zilula.
Nangona le ndlela iqinisekisa ubungakanani obuhle beembobo kunye nokusasazwa okufanayo, ukubaluleka kwendlela yokwenza le ndlela kwenza kube nzima ukuyisebenzisa.
Indlela yejeli yeSol
Indlela ye-sol gel njengoko igama lisitsho kukuguqulwa kwesisombululo sibe yisakhiwo se-ceramic ngelixa iimeko zeekhemikhali zilawulwa kwisinyathelo.imveliso yeseramikhii-porosity ilawulwa ngobuchule ngaphandle kokuphazamisa amandla abalulekileyo ezinto.
Isicelo kunye neenzuzo
Le ndlela isetyenziswa ngokubanzi ekwenzeni iifilimu, ii-coating, ii-sensors njl.
Igwebu elicocekileyo kakhulu liyaveliswa
Isiphelo
Ingxelo igubungele iinkcukacha zeefoam, iintlobo ezahlukeneyo zeefoam kunye neendlela zehlabathi zokwenza ifoam yeseramikhi. Kwifoam zeseramikhi, ulawulo lwepropathi ludlala indima ebalulekileyo. Indlela eyahlukileyo yokwenza ipropathi iqinisekisa ukuba ipropathi efanelekileyo iziswa etafileni ukunceda isicelo esifakwe kuyo.
Ixesha lokuthumela: Juni-10-2026