Ibumba rya alumina, ibumba rya silicon carbide na zirconia

Alumina ceramic ni ibikoresho byoroshye, ikuze mu ikoranabuhanga ryo gukora, ihendutse, ifite ubukana n'ubudahangarwa. Ikoreshwa cyane cyane mu miyoboro ya ceramic idashira, valve zidashira nk'ibikoresho byo mu gitereko, kandi ishobora no gusukwa hakoreshejwe ibyuma cyangwa igashyirwa ku rukuta rw'imbere rw'ibikoresho byo gutandukanya ibikoresho nk'inganda zikora ibyuma bipima, ifu ikungahaye ku ifu na cyclone, bishobora gutanga ubudahangarwa bw'ibikoresho inshuro 10. Mu bikoresho bidashira, isoko ry'ibikoresho bya alumina rishobora kugera kuri 60% kugeza 70%.

Ikintu cy’ingenzi kiranga ibikoresho bya ceramic bya SiC ni ukwihanganira ubushyuhe bwinshi. Mu gihe cy’ubushyuhe bwinshi, ibikoresho bifite imiterere ihamye ya mekanike kandi bishobora gukoreshwa neza kuri 1800 ℃ igihe kirekire. Icya kabiri kiranga ni uko ibikoresho bya silicon carbide bishobora gukoreshwa mu gukora ibintu binini bifite ububobere buto. Bikoreshwa cyane cyane mu nganda za sima zimanikwa mbere yo gushyushya, umunwa wa ceramic udapfa kwangirika cyane, umuyoboro w’amakara ugwa n’umuyoboro utwara ubushyuhe bwinshi w’inganda zitanga ingufu z’ubushyuhe. Urugero, iminwa y’ibikoresho bishyushya mu nganda zitanga ingufu z’ubushyuhe ikozwe muri silicon carbide, kandi ibicuruzwa bifite imiterere yo kwirinda ubushyuhe bwinshi no kwirinda kwangirika. Uburyo bwo gutwika silicon carbide burimo gutwika no kudapfuka cyane. Igiciro cyo gutwika ni gito, ibicuruzwa ni bibi cyane, kandi ubucucike bw’ibicuruzwa bidafite umuvuduko ni bwinshi. Ubukomere bw’ibicuruzwa busa n’ubw’ibicuruzwa bya alumina, ariko igiciro cyabyo kiri hejuru cyane.

Uburyo ibikoresho bya zirconia birwanya kugorama ni bwiza kuruta ubw'ibikoresho byoroshye. Igiciro cy'ifu ya zirconia ku isoko ubu kirahenze cyane, gikoreshwa cyane cyane mu bintu byo mu rwego rwo hejuru, nko mu bikoresho by'amenyo, amagufwa y'ubukorano, ibikoresho by'ubuvuzi, n'ibindi.