Umuyoboro wa Alumina Ceramic Udashira: Igisubizo cy'ingenzi cyo kurinda kwangirika kw'inganda

Imiyoboro y’inganda itwara ibikoresho byo kwangirika—nk’ifu y’amakara, ivu ry’umukungugu, ubutare bw’amabuye y’agaciro, icyuma gikonjesha sima, n’uduce duto tw’imiti—ihura n’ikibazo gihoraho: kwangirika k’urukuta rw’imiyoboro bigatuma inanirwa gukora neza, igihe cyo gukora kitagenwe, no kwiyongera kw’ikiguzi cyo kuyisana. Imiyoboro isanzwe y’icyuma cya karuboni, nubwo yaba ikomeye cyangwa yakozwemo ifu, ikunze kugaragaza ubuzima bw’akazi bupimirwa mu mezi make mu gihe cy’ihindagurika rikomeye. Umuyoboro wa alumina udashobora kwangirika (uzwi kandi nk’umuyoboro w’ibice bya ceramic) ukemura iki kibazo binyuze mu buryo bw’ikoranabuhanga: guhuza ubukana bukabije n’ubudakora neza bwa shimi bw’ibice bya alumina bifite isuku nyinshi hamwe n’ubukana bw’imiterere y’icyuma cyo hanze.

Ibumba rya Alumina (Al₂O₃) riri mu zikoreshwa cyane mu kurinda ubwanwa. Imikorere yaryo ihebuje ikomoka ku miterere ya α-Al₂O₃ ya kristalo ifite impande esheshatu, ituma ibikoresho bikomera cyane kandi bikagira imbaraga za mekanike.

Imiyoboro ya ceramic idashira ya alumina, yakozwe hakoreshejwe imiyoboro ya aluminiyumu ifite ubuziranenge bwinshi (Al₂O₃) ifatanye n'icyuma gikozwe mu nyubako, irwanya cyane kwangirika, isuri n'ubushyuhe. Ifite ubukana bwa Mohs bwa 9, imbaraga zo gukanda zirenga 850 MPa, kandi ikaba imaze igihe kirekire inshuro 10 kugeza kuri 30 ugereranyije n'imiyoboro isanzwe y'icyuma, iyi miyoboro ivanze yabaye ihame mu nganda zitwara amashanyarazi mu bucukuzi bw'amabuye y'agaciro, mu gukora amashanyarazi, mu gukora sima, mu gukora ibyuma, no mu gutunganya imiti.