Txhawm rau txhim kho qhov tsis zoo oxidation tsis kam, kev tiv thaiv corrosion thiab permeability ntawm cov pa roj carbon zoo tib yam, cov pa roj carbon monoxide nrog qhov nruab nrab qhov pore loj ntawm tsawg dua 0.5um tau tsim. Microporous carbon cib yog ib qho refractory ua los ntawm anthracite calcined ntawm 1500-2000 degree raws li cov ntaub ntawv tseem ceeb, ib tug me me ntawm graphite hmoov thiab silicon hmoov, thiab nruab nrab kub asphalt raws li cov binder.
Qhov tsim ntawm micro pores hauv microporous carbon cib yog vim qhov sib ntxiv ntawm cov hlau silicon hauv carbon cib. Silicon particles yaj thiab gasify ntawm qhov kub thiab txias, nkag mus rau hauv cov kab nrib pleb thiab cov voids ntawm cov pa roj carbon cib, thiab tsim rov ua dua. Gaseous Si reacts nrog C ntawm qhov kub thiab txias - SiC, qhov no - SiC sau yuav luag tag nrho cov kab nrib pleb thiab qhov hws hauv cov pa roj carbon cib thiab tso rau ntawm phab ntsa pore, uas yog tsim los ntawm cov tshuaj tiv thaiv - SiC tuaj yeem sau qhov pores, txo qhov pore loj thiab txo cov cua. permeability.
Microporous carbon cib tsis tsuas yog muaj cov khoom siv zoo heev, tab sis kuj muaj cov khoom zoo alkaline, thermal conductivity, molten hlau corrosion kuj, oxidation kuj thiab molten hlau permeability. Microporous carbon bricks yog tsuas yog siv nyob rau hauv qhov yaig cheeb tsam ntawm blast furnace thiab lwm yam tsis muaj zog qhov chaw ntawm high aluminium.
