Alumina Ceramic: Ikora neza cyane hamwe n'ubukomere bwa Mohs 9

Alumina ceramic ni ibikoresho by’inganda bikora neza cyane bizwiho ubukana bwa Mohs bwa 9. Iyi miterere ituma iba amahitamo meza yo gukoreshwa mu buryo busaba imbaraga nyinshi, cyane cyane mu gihe cy’ubukana, ingese n’ubushyuhe bwinshi. Iyi nkuru irasuzuma inkomoko y’ubukana bwayo bukabije n’imikorere yayo idasanzwe.

Ubukana bwinshi bwa alumina ceramic buturuka ku miterere yayo yihariye ya kristu n'imibanire yayo ya shimi. Igice cyayo cy'ingenzi, α-alumina (α-Al₂O₃), gifata imiterere ya corundum igizwe na ogisijeni na aluminiyumu byafatanye neza bihujwe n'imikoranire ikomeye ya ionic na covalent. Iyi mibanire itanga ingufu nyinshi, bigatuma ibikoresho birwanya kwangirika no kuvunika kwa pulasitiki mu gihe cy'ingufu zo hanze. Byongeye kandi, ibikoresho fatizo bifite isuku nyinshi hamwe n'uburyo bugezweho bwo gusya bikuraho ubusembwa buto, byongera ubucucike n'ubukomere muri rusange.

Ubukonje bwinshi butuma ikora neza cyane. Ubukonje bwayo budasanzwe butuma ikoreshwa cyane mu buryo bwo gufata amakara mu nganda zitanga ingufu zishyuha, ibikoresho byo gutwika no gukuraho ivumbi mu nganda z'ibyuma, imiyoboro itwara amabuye y'agaciro mu bucukuzi bw'amabuye y'agaciro, uburyo bwo gusya ifu mbisi n'ibikoresho byo gusya clinker mu nganda za sima, n'ibikoresho byo gutwara ifu mu nganda zikora imiti, birusha ibyuma gakondo mu buzima bwabyo. Byongeye kandi, ibikoresho bifite ubukonje bwiza bwo kurwanya ingese, bihangana na aside ikomeye, alkali, n'ibintu bisukura by'umwimerere. Mu bushyuhe bwinshi, alumina ceramic igumana imiterere ihamye ya mekanike na shimi, ikora neza hejuru ya 1600°C. Byongeye kandi, ubukonje bwinshi butuma amashanyarazi ahora ashyushye neza kandi akagira ubushyuhe buke, bigatuma ikoreshwa mu bikoresho by'ikoranabuhanga n'ibikoresho bicunga ubushyuhe.

Muri make,ibumba rya alumina, ifite ubukana bwa Mohs bwa 9, igira uruhare rudasimburwa mu nganda no mu ikoranabuhanga. Ifite ubushobozi bwo kwangirika no kudashira, igumana ubushyuhe bwinshi, ndetse n'ubushobozi bwo gukingira amashanyarazi bituma iba igikoresho cy'ingenzi mu nganda zigezweho n'ikoranabuhanga rigezweho. Uko uburyo bwo gutunganya bukomeza gutera imbere, amahirwe yo gukoresha alumina ceramic yitezwe ko azarushaho kwiyongera.