Aluminum oxide shine tsarin sinadarai na alumina, wani abu da aka yi da aluminum da oxygen. Ana kiransa daidai da aluminum oxide kuma shine mafi yawan faruwar wasu oxides na aluminum. Baya ga saninsa da alumina, yana iya tafiya da sunayen aloxide, aloxite, ko alundum, dangane da nau'insa da amfaninsa. Wannan labarin yana mayar da hankali kan aikace-aikacen alumina a cikin filin yumbura.
Wasu sulke na jiki suna amfani da farantin yumbura na alumina, yawanci tare da goyan bayan aramid ko UHMWPE, don samun tasiri a kan mafi yawan barazanar bindiga. Duk da haka, ba a la'akari da ingancin soja ba. Bugu da ƙari, yana hidima don ƙarfafa gilashin alumina akan tasirin harsasai .50 BMG.
Sashin ilimin halittu yana amfani da tukwane na alumina sosai saboda dacewawarsu na rayuwa da dorewa daga lalacewa da lalata. Alumina yumbura yana aiki azaman kayan dasa hakori, maye gurbin haɗin gwiwa, da sauran kayan aikin likita.
Yawancin kayan abrasive na masana'antu akai-akai suna amfani da alumina saboda ƙaƙƙarfan ƙarfi da taurin sa. A kan ma'aunin Mohs na taurin ma'adinai, nau'in da ke faruwa a zahiri, corundum, ƙimar 9-ƙasa da lu'u-lu'u. Hakazalika da lu'u-lu'u, mutum na iya yin suturar alumina don hana abrasion. Masu yin agogo da masu yin agogo suna amfani da Diamantine, a cikin mafi kyawun foda (fararen fata), a matsayin mafi kyawun goge goge.
Insulating
Alumina babban insulator ne, yana mai da shi dacewa don amfani a aikace-aikacen zafin jiki mai ƙarfi da ƙarfin lantarki. Ana amfani da shi azaman sinadari (silicon on sapphire) da shingen rami a cikin haɗaɗɗun da'irori don ƙirƙira manyan na'urori kamar transistor-electron, superconducting quantum internation na'urorin (SQUIDs), da superconducting qubits.
Sashin yumbu kuma yana amfani da alumina azaman matsakaicin niƙa. Alumina shine ingantaccen abu don amfani dashi a aikace-aikacen niƙa saboda taurin sa da juriya. Ƙwallon ƙwallo, injinan girgiza, da sauran injinan niƙa suna amfani da alumina azaman matsakaicin niƙa.
Kodayake alumina an san shi da farko don amfani da shi wajen samar da aluminium, kuma yana da mahimmanci a cikin filayen yumbura da yawa. Abu ne da ya dace don waɗannan aikace-aikacen saboda babban ma'anar narkewar sa, fitattun kaddarorin thermal da na inji, kaddarorin rufewa, juriya, da haɓakar halittu.