I-Kaolin, i-kaolin ecoliweyo, i-kaolin ehlanjiweyo, i-metakaolin.

Ukusetyenziswa kwe-kaolin kuquka:
Njengezinto eziyimfuneko kwimveliso ezininzi, ezifana nokwenza iphepha, iiseramikhi, irabha, ishishini leekhemikhali, ukugquma, amayeza kunye nokhuselo lwesizwe, i-kaolin ine-plasticity ethile, eyenza umzimba wodaka lweseramikhi ube luncedo ekujikeni, ekuhlanganiseni nasekubumbeni.

Indima ye-kaolin kwi-ceramics kukungenisa i-Al2O3, enceda ekwakhiweni kwe-mullite kwaye iphucula uzinzo lwayo lweekhemikhali kunye namandla ayo okusila.

Ngexesha lokusila, i-kaolin iyabola ibe yi-mullite, yenze isakhelo esiphambili samandla omzimba oluhlaza, esinokuthintela ukuguquka kweemveliso, sandise ubushushu bomlilo, kwaye senze umzimba oluhlaza ube mhlophe othile.

I-Metakaolin (i-MK ngamafutshane) yi-aluminium silicate engamanzi (i-Al2O3 · 2SiO2, i-AS2 ngamafutshane) eyenziwe kukuphelelwa ngamanzi kwe-kaolin (i-Al2O3 · 2SiO2 · 2H2O, i-AS2H2 ngamafutshane) kubushushu obufanelekileyo (600 ~ 900 ℃). I-Kaolin yeyolwakhiwo lwe-silicate oluneziteyara, kwaye ezi ziteyara zibotshelelwe yi-van der Waals bond, apho ii-ion ze-OH zibotshelelwe khona ngokuqinileyo. Xa i-kaolin ifudunyezwa emoyeni, isakhiwo sayo siya kutshintsha amaxesha amaninzi. Xa ifudunyezwa ukuya kuthi ga kwi-600 ℃, isakhiwo se-kaolin esineziteyara siya kutshatyalaliswa ngenxa yokuphelelwa ngamanzi, kwenze i-metakaolin yesigaba sokutshintsha ene-crystallinity embi. Ngenxa yokuba ulungiselelo lwe-molecular ye-metakaolin aluhambelani kakuhle, inika imeko ye-thermodynamic metastable kwaye iyakwazi ukuhlanjwa phantsi koxinzelelo olufanelekileyo.

I-Metakaolin luhlobo lomxube weminerali osebenza kakhulu. Yi-aluminium silicate engaguqukiyo eyenziwe yi-kaolin ecolekileyo kakhulu efakwe kwi-calcined kubushushu obuphantsi. Inomsebenzi ophezulu we-pozzolanic, isetyenziswa kakhulu njengomxube wekhonkrithi, kwaye ingasetyenziselwa ukwenza ii-polymers zejoloji ezisebenzayo kakhulu.