Yuav ua li cas yog lub Qhov sib txawv ntawm corundum thiab alumina?

Nyob zoo yav tsaus ntuj, corundum yog ib lub npe nrov rau alumina, xws li corundum crucibles siv rau high-temperature sintering nyob rau hauv chemical instruments, thiab alumina balls kuj hu ua corundum balls rau planetary pob milling ntawm ib co khoom hais. Cov khoom alumina yog tawv thiab hnav-resistant tom qab sintering.