Izakhiwo zomkhiqizo we-Black corundum

I-Black corundum, eyaziwa nangokuthi i-alumina corundum ephansi, isesithandweni somlilo se-arc, i-bauxite encibilika futhi yenziwe ngohlobo lwe-α-Al2O3 ne-iron spinel njengesigaba esiyinhloko samaminerali sekristalu elimpunga elimnyama, elibonakala ngokuqukethwe okuphansi kwe-Al2O3, kanye nenani elithile le-Fe2O3 (10% noma kunjalo), ukuqina, izinga lokushisa eliphezulu, izici zokushisa eziphakeme, izinga lokushisa eliphakeme, izici zokushisa eziphakeme. Ikakhulukazi esetshenziselwa ukugaya kwamahhala, njengokugaya okungalungile ngaphambi kwemikhiqizo ye-electroplating, ikakhulukazi esetshenziselwa insimbi engagqwali, imikhiqizo yensimbi, ingilazi yokubona, uqalo nemikhiqizo yokhuni ukupholisha kanye ne-sandblasting, kuphinde kube ukwakhiwa kwesondo lokugaya inhlaka, izingcezu zokusika, i-abrasive yendwangu ye-emery.