Porous hnav-resistant ceramic yog ib yam khoom uas tsis yog-metallic nrog ntau qhov sib cuam tshuam los yog kaw qhov pores. Nws muaj qhov zoo ntawm qhov kub thiab txias tsis kam, corrosion kuj, siab mechanical zog, zoo tshuaj stability thiab muaj zog regeneration muaj peev xwm. Vim nws txoj haujlwm ntawm kev sib cais, dispersion, nqus thiab sib cuag dej, nws yog dav siv nyob rau hauv tshuaj, roj av, saw saw, textile, tshuaj, ib puag ncig tiv thaiv thiab lwm yam kev lag luam sectors, thiab tau txais ntau thiab ntau xim.
Pore-forming txoj kev ntawm porous hnav-resistant ceramics muaj xws li ntxiv pore-forming tus neeg sawv cev, impregnating organic ua npuas ncauj, sol-gel, foaming txheej txheem, thiab lwm yam. Cov txheej txheem feem ntau yog ntxiv porogens, uas hlawv tawm los yog volatilize ntawm kub thiab tawm pores. hauv lub cev ceramic. Nyob rau hauv ib tug tej yam ntau yam, lub porosity nce nrog qhov nce ntawm cov ntsiab lus porogen. Cov txheej txheem no tuaj yeem npaj cov qauv porous ceramic nrog cov duab nyuaj thiab cov qauv pore sib txawv. combustion los yog volatilization ntawm tus neeg sawv cev tsim kuj nyhav los tsim "arch choj" nyhuv ntawm embryo hais. Qhov "arch choj" cov nyhuv no yuav tsis txhawb lub cev ntsuab thiab ua rau cov qauv tawg. Yog li ntawd, qhov porosity ntawm tus qauv yog feem ntau qis, feem ntau mus txog 40 feem pua, thiab nws lub zog yog qhov tsawg, thiab lub zog txo nrog nce porosity. Txoj kev sol-gel feem ntau yog siv los npaj cov ntaub ntawv microporous ceramic, tshwj xeeb tshaj yog cov yeeb yaj kiab microporous ceramic.
Lub sintering kub ntawm ntxeem tau hnav-resistant ceramics yog qhov siab, thiab magnesium oxide los yog titanium oxide hmoov yog siv los ua sintering pab.
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