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Indlela yokulungiselela yendabuko yeekeramics ze-foam

Indlela yesiko lokulungiselela iiseramics zogwebu:

Indlela yogwebu: Indlela yokusabela enogwebu ingasetyenziselwa ukulungisa iimveliso zeseramic ezinogwebu ezinemilo entsonkothileyo ukuhlangabezana nokusetyenziswa kwezihlandlo ezithile ezikhethekileyo;ukongeza iifiber ze-ceramic ezifanelekileyo kwi-powder ceramic inokuphucula le nkqubo kwaye ikhulise ngokufanelekileyo umzimba oluhlaza Amandla ngexesha lenkqubo ye-sintering ukuphepha i-chalking kunye nokuwa.

Indlela ye-Sol-gel: Indlela ye-sol-gel isetyenziselwa kakhulu ukulungiselela izinto ze-ceramic microporous kunye ne-pore diameters kwinqanaba le-nanometer.Le ndlela inokuthi iphuculwe ukulungiselela izixhobo ze-ceramic ze-foam eziqhelekileyo.Ukusebenzisa itekhnoloji ye-sol-gel ukulungisa izinto ze-foam, i-viscosity yenkqubo ikhula ngokukhawuleza ngexesha lokuguqulwa kwenkqubo ukusuka kwi-sol ukuya kwi-gel, ngaloo ndlela kuzinzisa amaqamza avelisiweyo kwinqanaba lokuqala kunye nokuququzelela ugwebu.Xa kuthelekiswa nezinye iinkqubo, le nkqubo yodwa.Isenokulungiselela iifilimu ze-ceramic ze-foam ezinobungakanani be-nanometer-scale pore kunye nokuhanjiswa kwepore efanayo.Ngoku iyeyona ndawo isebenzayo yophando kulungiselelo lweefilimu ezingaphiliyo.

Ukongeza i-pore yangaphambili indlela: lungisa i-foam ye-ceramic ngokongeza i-pore yangaphambili kwizithako ze-ceramic, usebenzisa i-pore yangaphambili ukuze ihlale kwindawo ethile kumzimba oluhlaza, kwaye emva kokucwina, i-pore yangaphambili ishiya i-matrix ukuze yenze i-pores ukulungiselela iiseramics zogwebu.Ubume kunye nobukhulu be-pore yangaphambili amaqhekeza achaza ubume kunye nobukhulu bemibhobho yezinto ze-ceramic foam.Iindlela zokubumba ikakhulu zibandakanya ukubumba, ukukhupha, ukucinezela isostatic, ukuqengqeleka, inaliti, kunye nokugalelwa ludaka.Le ndlela ingasetyenziselwa ukulungiselela izinto ezinemilo enzima kunye nezakhiwo ezahlukeneyo ze-pore, kodwa ukufana kokusabalalisa i-pore kubi.

Indlela yokufakwa kwe-Organic precursor: Eyona ndlela ifanelekileyo yokulungiselela iiseramics zogwebu yindlela yokumiliselwa kwe-organic precursor, kwaye ukuhamba kwenkqubo kubonisiwe kumzobo.I-ceramic enegwebu elungiselelwe yile ndlela yokubumba isetyenziswe ngokubanzi kwiindawo ezininzi kwaye iphumelele imiphumo ecacileyo.Ukulawula ngakumbi ukusebenza kodaka, ukwandise ngokufanelekileyo inkqubo ye-inorganic binder, kunye nokulawula ngokungqongqo inkqubo yokufakwa kwe-slurry, kunokuphucula ukusebenza kweemveliso ze-ceramic zogwebu.I-Ceramic powder solvents kunye nezongezo;ukhetho lwe-foam ye-organic ukulungiselela ukulungiswa kwe-slurry;unyango lwangaphambili;unyango lokuntywiliselwa;ukususwa kwe-slurry engaphezulu;ukomisa;ukususwa kwe-foam ephilayo;ukudubula.Nangona kunjalo, inkqubo yokudipha i-organic precursor inesiphene esicacileyo, oko kukuthi, imveliso Ubume bepore, ngakumbi ubukhulu bepore, buxhomekeke kwisakhiwo sepore kunye nobukhulu be-foam ekhethiweyo ye-organic.Ubungakanani be-mesh ye-foam ekhethiweyo yezinto eziphilayo zilinganiselwe, ezithintela ubungakanani bepore kunye nesakhiwo sezinto ezifunyenweyo ze-ceramic.UZhu Xinwen kunye nabanye basebenzisa i-foam ye-organic-dimensional reticulated reticulated njenge-carrier, baqala balungisa umnatha ongenanto kunye ne-porosity ephezulu kwaye phantse akukho plagi ngenkqubo yokufakelwa, kwaye bafumana i-preform enamandla athile emva kokukhupha kunye ne-pre-sintering.Umphetho we-preform yisakhiwo esine-porous esikhululekile, esisombulula le ngxaki kakuhle.


Ixesha lokuposa: Oct-12-2021