Dawb corundum, tseem hu ua dawb txhuas oxide, yog ib daim ntawv crystalline ntawm txhuas oxide uas feem ntau yog dawb los yog xim xim.Nws muaj Mohs hardness ntsuam xyuas ntawm 9.0 thiab muaj npe nrov rau nws cov hardness siab thiab toughness, ua rau nws zoo tagnrho rau siv nyob rau hauv precision cuab yeej tsim, hnav-resistant cov ntaub ntawv ua, thiab nto tiav daim ntaub ntawv.Dawb corundum yog tsim los ntawm cov khoom siv zoo bauxite raw khoom uas yog calcined los ntawm kev siv tshuab siab heev.Muaj ob lub ntsiab ntawm dawb corundum: fused thiab sintered.Txawm hais tias lawv qhov sib txawv, ob hom muaj cov khoom zoo tshaj plaws uas tau tso cai rau lawv kom tau txais qhov chaw tseem ceeb hauv ntau qhov kev lag luam.
