Kev Kawm Txog Cordierite Honeycomb Ceramics Siv Los ntawm Ceramic Fiber

Honeycomb ceramics yog siv dav hauv denitration catalyst tus neeg tsav tsheb, tsheb thauj khoom kub thiab tsheb tsheb cov pa roj catalytic purifier_ 2O_ 3 • 5SiO_ 2) Cordierite honeycomb ceramics nrog cov tshuab muaj zog loj, coefficient ntawm thermal expansion, zoo thermal poob siab tsis kam, qis stability thiab tshuaj lom neeg tsis zoo yog. yeej ib txwm nyiam cov ntaub ntawv rau honeycomb ceramics. Cordierite crystals qhia anisotropic thermal nthuav dav, yog li nws yog qhov tseem ceeb los npaj cordierite honeycomb ceramics npaj rau hauv ib qho kev taw qhia. Ua ntej, Mg (OH) yog siv rau hauv daim ntawv no # 2, A1_ 2O_ 3, SiO_ 2 raws li cov khoom siv raw, cov khoom siv fiber ntau-fiber ntau cov kev ua tiav tau raug npaj los ntawm kev qhia tus nqi tsim nyog ntawm alumina silicate ceramic fiber. Kev sib xyaw theem ntawm kev soj ntsuam thiab kev soj ntsuam microstructure tau ua tiav los tshawb txog qhov ua tau thiab kev siv thev naus laus zis ntawm cov qauv kev loj hlob rau kev tsim cov fibrous cordierite, tib lub sijhawm, cov nyhuv ntawm ceramic fiber ntawm lub zog ntawm cordierite honeycomb ceramics tau kawm. Cov txiaj ntsig tau qhia tias tom qab kev qhia ntawm aluminium silicate ceramic fiber, cordierite theem tuaj yeem tsim los ntawm cov tshuaj tiv thaiv nrog fiber ntau ua qauv raws li cov xwm txheej ntawm 1300 ℃ rau 5 teev. Lub cordierite theem nyob rau hauv honeycomb ceramics npaj los ntawm extrusion txoj kev muaj cov yam ntxwv ntawm kev taw qhia kev ua kom zoo, qis thermal nthuav coefficient thiab cov cuab yeej siab.