Porous ceramic yog ib qho inorganic non-metallic hmoov sintered lub cev uas muaj qee qhov voids.Qhov sib txawv tseem ceeb ntawm lwm cov khoom siv tsis muaj hlau tsis muaj hlau (nruj ceramics) yog seb nws puas muaj voids (pores) thiab qhov ntim feem pua ntawm cov voids (pores) nws muaj.Raws li txoj kev pore-forming thiab voids, porous ceramics tuaj yeem muab faib ua: foamed ceramics, honeycomb ceramics, thiab granular ceramics.
Vim tias muaj qee qhov ntawm qhov pores, cov qauv, cov khoom thiab kev ua haujlwm ntawm cov porous ceramics tau hloov pauv ntau.Piv nrog cov ceramics ceev, ceramics muaj cov yam ntxwv tsib nram qab no:
1. Cov khoom me me thiab lub teeb yuag.
2. Loj qhov chaw tshwj xeeb thiab kev ua haujlwm zoo.
3. Tsawg thermal conductivity, zoo thermal thiab suab rwb thaiv tsev zog.
4. Cov tshuaj lom neeg zoo thiab lub cev ruaj khov, tuaj yeem hloov mus rau ntau qhov chaw corrosive, muaj zog txhua yam thiab nruj, thiab ua haujlwm kub zoo.
5. Cov txheej txheem yog yooj yim thiab tus nqi qis.
1. Siv rau kev pom thiab cais cov khoom siv
Cov cuab yeej lim tau tsim los ntawm cov phaj zoo li lub cev lossis cov khoom siv tubular ntawm cov ntxeem tau ceramics muaj cov yam ntxwv ntawm thaj chaw loj lim thiab siab lim dej.Nws yog dav siv hauv kev ua kom huv ntawm cov dej, kev sib cais thiab pom cov roj, thiab kev sib cais ntawm cov organic tov, acid-base tov, lwm yam kua nplaum thiab compressed cua, coke cub gases, chav, methane, acetylene thiab lwm yam gases.Vim tias cov porous ceramics muaj qhov zoo ntawm qhov kub thiab txias tsis kam, hnav tsis kam, tshuaj tiv thaiv corrosion, thiab cov neeg kho tshuab siab zog, lawv tau nthuav qhia lawv cov txiaj ntsig tshwj xeeb hauv daim ntawv thov ntawm cov kua dej corrosive, cov kua kub kub, thiab cov hlau molten.
2. Siv rau lub suab nqus thiab txo suab nrov
Raws li lub suab-absorbing khoom, ntxeem tau ceramics feem ntau siv nws cov diffusion muaj nuj nqi, uas yog, disperse cov huab cua siab tshwm sim los ntawm lub suab nthwv dej los ntawm cov qauv ntxeem tau kom ua tiav lub hom phiaj ntawm lub suab nqus.Porous ceramics li suab-absorbing cov ntaub ntawv yuav tsum tau me me pore loj (20-150 μm), siab porosity (tshaj 60%) thiab siab mechanical zog.Porous ceramics tau tam sim no tau siv rau hauv cov tsev siab, qhov av, subways thiab lwm qhov chaw uas muaj kev tiv thaiv hluav taws kub heev, nrog rau cov chaw uas muaj suab nrov nrov xws li cov chaw xa xov tooj cua thiab cov xinesmas.
3. Siv rau industrial catalyst cab kuj
Txij li cov porous ceramics muaj qhov zoo adsorption muaj peev xwm thiab kev ua haujlwm, tom qab tau them nrog cov catalyst, kev hloov pauv kev ua haujlwm thiab cov tshuaj tiv thaiv tus nqi yuav zoo dua tom qab cov kua tshuaj tiv thaiv dhau los ntawm cov pores ntawm cov ntxeem tau ceramics.Tam sim no, kev tshawb fawb tsom xam ntawm ntxeem tau ceramics raws li catalyst txhawb yog cov inorganic sib cais catalytic membrane, uas combines cov kev sib cais thiab catalytic zog ntawm porous ceramic cov ntaub ntawv, thiab yog li muaj ntau yam ntawm daim ntawv thov prospects.
4. Siv rau cov khoom siv hluav taws xob rhiab heev
Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm cov av noo thiab cov pa roj sensor lub ntsiab ntawm cov ceramic sensor yog tias thaum lub microporous ceramic muab tso rau hauv cov pa roj los yog kua nruab nrab, qee cov khoom hauv nruab nrab yog adsorbed lossis reacted los ntawm lub cev ntxeem tau, thiab lub peev xwm los yog tam sim no. lub microporous ceramic yog nyob rau lub sijhawm no.kev hloov pauv kom pom qhov muaj pes tsawg leeg ntawm cov roj lossis kua.Ceramic sensors muaj cov yam ntxwv ntawm qhov kub thiab txias tsis kam, corrosion kuj, yooj yim tsim txheej txheem, rhiab thiab raug kuaj, thiab lwm yam, thiab tuaj yeem tsim nyog rau ntau lub sijhawm tshwj xeeb.
Post lub sij hawm: Aug-11-2022