Okiside ya aluminiyumu, izwi kandi nka alumina, ni ikintu kigizwe na aluminiyumu na ogisijeni, hamwe na formula Al₂O₃. Iki gikoresho gifite uburyo bwinshi ni ikintu cy'umweru, gifite kristu, kigira uruhare runini mu nganda zitandukanye bitewe n'imiterere yacyo yihariye.
Kimwe mu bintu by'ingenzi biranga aluminium oxyde ni ubukana bwayo budasanzwe. Iza ku mwanya wa 9 ku gipimo cya Mohs, bigatuma iba imwe mu bikoresho bigoye cyane kuboneka. Ubu bukana butuma aluminium oxyde iba nziza cyane, ikoreshwa cyane mu mpapuro zo gusya, mu mapine yo gusya no mu bikoresho byo gukata. Iramba neza ituma ishobora kwihanganira gukoreshwa cyane, bigatuma iba amahitamo meza mu nganda no mu bwubatsi.
Uretse ubukana bwayo, okiside ya aluminiyumu izwiho kandi ubushobozi bwayo bwiza bwo gukingira ubushyuhe n'amashanyarazi. Ibi bituma iba ibikoresho by'ingenzi mu nganda z'ibikoresho by'ikoranabuhanga, aho ikoreshwa nk'icyuma gikingira ubushyuhe mu byuma bipima ubushyuhe n'ibindi bikoresho by'ikoranabuhanga. Byongeye kandi, ahantu hanini ho gushonga (hafi 2050°C cyangwa 3722°F) bituma ikoreshwa mu bushyuhe bwinshi, nko mu bikoresho bigabanya ubushyuhe mu itanura no mu itanura.
Okiside ya aluminiyumu ikoreshwa cyane mu gukora icyuma cya aluminiyumu binyuze muri gahunda ya Bayer, aho amabuye ya bauxite atunganywa kugira ngo akuremo aluminiyumu. Iyi gahunda ni ingenzi ku nganda za aluminiyumu, kuko itanga ibikoresho fatizo bikenewe mu gukora ibikoresho bya aluminiyumu byoroshye kandi birwanya ingese.
Byongeye kandi, okiside ya aluminiyumu ifite akamaro mu bijyanye n'ubudozi bw'amenyo, aho ikoreshwa mu gukora ibikoresho bya keramike bigezweho bikoreshwa mu buryo butandukanye bugezweho, harimo ibikoresho byo mu kirere n'iby'ubuvuzi. Kuba ikora neza mu mubiri bituma ikoreshwa mu gutera amenyo n'inganda.
Muri make, okiside aluminiyumu ni ikintu gifite ibice byinshi gifite akamaro kanini mu nganda zitandukanye. Imiterere yacyo yihariye, harimo gukomera, ubushyuhe burambye, no gukingira amashanyarazi, bituma kiba igikoresho cy'ingenzi mu ikoranabuhanga rigezweho no mu nganda. Uko inganda zikomeza gutera imbere, akamaro ka okiside aluminiyumu gashobora kwiyongera, bigakomeza gushimangira uruhare rwacyo mu guhanga udushya no guteza imbere.
Igihe cyo kohereza: Mata-01-2025
