Izitena zealumini ephezulu Intshayelelo yebakala

Izitena eziphezulu ze-alumina zohlulwe zibe ngamabakala amathathu. Ibanga lokuqala isitena alumina eliphezulu iqulethe AL2O3≥75%, ibakala yesibini isitena alumina eliphezulu AL2O3≥65, kunye nenqanaba lesithathu isitena alumina eliphezulu AL2O3≥55. Phakathi kwabo, kukho ubudlelwane obungenakuhlukaniswa kunye nezinto eziluhlaza. Ngokubanzi xa sithetha ngemathiriyeli ekrwada. Lawa mabakala mathathu kunye neemveliso ze-silicon-aluminium ezimele izinto eziphikisayo zikwabonisa amabakala ahambelanayo omgubo ocolekileyo we-aluminium kunye ne-aluminiyam ephezulu.