Dawb corundum, tseem hu ua dawb txhuas oxide, yog ib daim ntawv ntshiab heev ntawm txhuas oxide. Nws yog cov khoom siv dav siv los ua cov khoom siv vim nws qhov siab hardness thiab toughness. Dawb corundum yog tsim los ntawm high-temperature fusion ntawm alumina nyob rau hauv ib tug hluav taws xob arc rauv.
Cov tshuaj muaj pes tsawg leeg ntawm dawb corundum feem ntau yog txhuas oxide (Al2O3), nrog rau cov hlau oxide, silicon dioxide, thiab titanium dioxide. Nws yog cov khoom siv crystalline nrog Mohs hardness ntawm 9, ua rau nws yog ib qho nyuaj tshaj plaws paub.
Dawb corundum muaj ntau yam kev siv, xws li hauv kev tsim cov log sib tsoo, ntawv xuab zeb, polishing thiab txiav cov cuab yeej, thiab ua cov blasting xov xwm rau saum npoo ntawm cov hlau thiab lwm yam ntaub ntawv. Nws kuj tseem siv rau hauv cov khoom siv refractory, ceramics, thiab hluav taws xob insulators.
Hauv cov ntsiab lus, dawb corundum yog ib qho khoom siv zoo kawg thiab muaj txiaj ntsig vim nws cov purity siab thiab cov khoom tshwj xeeb. Nws ua lub luag haujlwm tseem ceeb hauv ntau cov txheej txheem kev lag luam thiab kev siv, ua rau nws yog cov khoom tseem ceeb rau lub ntiaj teb niaj hnub no.