Yakakwirira alumina zvidhinha kuvira regirazi

Izvo zvikamu zvikuru zvealumina zvidhinha zvakakwirira ndeyeSiO2 uye Al2O3, asi zvinyorwa zvealuminium zvinofanira kuva zvakakura kudarika 46%. Yakagadzirwa kubva ku corundum, bauxite kana sillimanite series zvicherwa (Al2O3-SiO2). Density i2.3～3.0g/cm3, iyo inooneka porosity inenge 18%～23%, uye yakanyanya tembiricha yekushandisa i1500～1650℃. Iyo yakaderera iyo porosity yealumina yakakwira zvidhinha, zviri nani kuramba kwayo kukora. Dziva remadziro rechikamu chekutonhora, chivharo chekugadzirisa, uye rusvingo rwekugadzirisa zvinogona kuvakwa nepamusoro-aluminium zvidhinha.