ʻO ka corundum ʻeleʻele abrasiveʻO ke adamantine, i ʻike ʻia hoʻi he corundum, he mea i hana ʻia mai ka bauxite abrasive kiʻekiʻe ma ke ʻano he mea maka nui, kahi i hoʻomaʻemaʻe ʻia i loko o ka umu arc uila wela kiʻekiʻe ma mua o 2250 ℃. Loaʻa iā ia nā waiwai maikaʻi loa e like me ka paʻakikī kiʻekiʻe (paʻakikī o 9, ʻo ka lua wale nō i ka diamod), ke kūpaʻa wela kiʻekiʻe, ke kūpaʻa ʻaʻahu kiʻekiʻe, ka paʻakikī kiʻekiʻe, a me ka laka ponoʻī maikaʻi loa a me ka conductivity thermal haʻahaʻa, ka mea e loaʻa ai nā abrasives corundum ʻeleʻele i kahi ākea o nā noi ma nā ʻano ʻoihana like ʻole.
ʻO ke kikoʻī,nā mea hoʻopōʻino corundum ʻeleʻelehiki ke hoʻohana ʻia e hana i nā ʻano mea hana abrasive like ʻole, e like me nā huila wili, nā pōhaku ʻaila, nā poʻo abrasive, nā piliki sanding, a pēlā aku, a hiki ke hoʻohana ʻia no ka wili ʻana a me ka polishing o nā metala, nā keramika, ke aniani a me nā mea paʻakikī kiʻekiʻe ʻē aʻe. Eia kekahi, hoʻohana ʻia nā micropowders corundum brown ma ke ʻano he deoxidisers metallurgical a me nā mea kūpaʻa wela kiʻekiʻe, ʻoiai hoʻohana ʻia nā kristal hoʻokahi maʻemaʻe kiʻekiʻe i ka hana ʻana i nā mea kūloko no nā semiconductors a mecorundum ʻeleʻelenā olonā. I loko o nā ʻōnaehana kemika, hoʻohana ʻia ka corundum ʻeleʻele ma ke ʻano he mau ipu hoʻihoʻi, nā paipu a me nā ʻāpana pamu kemika ma muli o kona kūpaʻa maikaʻi a me nā waiwai ikaika kiʻekiʻe. Hoʻohana nui ʻia ia ma ke ʻano he mea hana ʻenekinia i loko o nā ʻoihana photovoltaic solar, semiconductor, a me nā kristal piezoelectric, a me ke kūkulu ʻana i nā paia multifurnace wela kiʻekiʻe a me nā hale.
Ke kaʻina hana onā mea hoʻopōʻino corundum ʻeleʻeleaia kekahi mau ʻanuʻu, me ke koho ʻana i nā mea maka, ka wāwahi ʻana, ka wili ʻana, ka hoʻohuihui ʻana a me ke kālai ʻana, ka pyrometallurgy, ka hoʻomaʻalili ʻana a me ka wāwahi ʻana, ka kānana ʻana a me ka hoʻopili ʻana, pono e hoʻomalu pono ʻia kēlā me kēia mea e hōʻoia i ka maikaʻi a me ka hana o ka huahana.
