Ni gute inkoni y’ivyuma vy’amabuye y’agaciro y’alimina iriko irasenyuka?
Alumina ceramic ni igikoresho c’ivyuma gifise alumina (Al2O3) nk’umubiri nyamukuru, kikaba gikoreshwa mu mirongo y’ivyuma bikomeye. Ivyuma vy’ivyuma vy’ivyuma vy’ivyuma bifise ubushobozi bwo gutwara neza, inkomezi z’ubuhinga n’ubushobozi bwo guhangana n’ubushuhe bwinshi. Birakenewe kumenya ko gukaraba kw’amajwi ari ngombwa. Alumina ceramics ni ubwoko bw’ibintu bikoreshwa cane, kubera ibikorwa vyiza kuruta ibindi vyose, igikorwa mu kibano ca none cararushirije cane, kugira ngo gishobore gushitsa ivyo umuntu akeneye ku musi ku musi n’ibikorwa bidasanzwe.
Inkoni y'ivyuma
The plasma sintering method of zirconia ceramic rod mainly controls the sintering process by several parameters, such as pressure, temperature and time. Mu nzira yo gushusha, gushusha bivana n’ugushushanya n’ugushushanya imishwarara y’umubiri w’ugushusha ku buryo, rero igipimo c’ugushusha muri rusangi kiragenda buhoro. Kubera ko gushuha cane ari ngirakamaro mu gutera imbere no gutera imbere mu mibumbe mitomito, abantu bamaze igihe bagerageza kuronka ibiharuro vy’ubushuhe bwinshi cane. Ariko rero, gutahura umuvuduko munini ntibishobora gushikwako biciye ku buryo busanzwe bwo gushushanya umuyagankuba. Gushushanya mu plasma birashobora kuronka igipimo c’ubushuhe bwinshi cane kidashobora gushikwako biciye ku buryo bwo gushusha umuyagankuba. Ingingo y’ugushushanya mu maraso. Ivyo bikoresho vy’ugusesagura kw’amaraso (plasma) vyerekeye gukoresha ubushuhe bwinshi n’inguvu z’ama elegitoroni zikozwe n’ugusohoka kw’amazi n’ikirere gigenzurwa ku bikoresho vyo gutera. Kubera ko plasma ishobora gushika mu bushuhe bwinshi, kandi igipimo c’ubushuhe bwayo gishobora gushika ku rugero rurenga 1000℃/min, ubuhinga bwo gutera plasma ni ubuhinga bushasha bwo gutera ubushuhe bwinshi ku bijanye n’ubuhinga bwa none. Ubwo buryo bwakoreshejwe ubwa mbere mu 1968 mu gutera imbere kw’ibihimba vy’umubiri A1203, inyuma y’imyaka myinshi cane y’iterambere, ubu buryo bwakoreshejwe neza mu bihimba vy’umubiri bitandukanye, nka AI23, Y23 Zr2, Mg0, SiC n’ibindi.
