Nk'ubwoko bw'ibikoresho bya ceramic, zirconium ifite imbaraga nyinshi, ubukana bwinshi, idapfa kwangirika neza, irwanya aside na alkali, irwanya ubushyuhe bwinshi n'indi miterere myiza. Uretse kuba ikoreshwa cyane mu nganda, hamwe n'iterambere rikomeye ry'inganda z'amenyo mu myaka ya vuba aha, zirconium ceramics yabaye ibikoresho by'amenyo ashobora gukoreshwa cyane kandi byakuruye ibitekerezo by'abashakashatsi benshi.
Uburyo bwo gucukura
Uburyo gakondo bwo gushyushya umubiri ni ugushyushya umubiri binyuze mu mirasire y'ubushyuhe, gushyushya ubushyuhe, gushyushya ubushyuhe, kugira ngo ubushyuhe buve hejuru ya zirconia bugere imbere, ariko ubushobozi bwo gushyushya bwa zirconia ni bubi kurusha ubwa alumina n'ibindi bikoresho bya ceramic. Kugira ngo hirindwe gucika kw'ibiterwa n'ubushyuhe, umuvuduko usanzwe wo gushyushya ugenda buhoro kandi igihe ni kirekire, ibyo bigatuma uruziga rwo gukora zirconia ruramba kandi ikiguzi cyo gukora kikaba kinini. Mu myaka ya vuba aha, kunoza ikoranabuhanga ryo gutunganya zirconia, kugabanya igihe cyo gutunganya, kugabanya ikiguzi cyo gukora, no gutanga ibikoresho bya ceramic bya zirconia by'amenyo bifite imikorere myiza byabaye intego y'ubushakashatsi, kandi gushyushya zirconia muri microwave nta gushidikanya ko ari uburyo bwiza bwo gushyushya.
Byagaragaye ko gushyushya imiyoboro ya microwave no gushyushya umuvuduko w’ikirere nta tandukaniro rigaragara bifite ku ngaruka zo kudashobora kwinjira no kwangirika. Impamvu ni uko ubucucike bwa zirconia buboneka mu gushyushya imiyoboro ya microwave busa n’ubwo gushyushya imiyoboro isanzwe, kandi byombi ni ugushyushya imiyoboro y’amashanyarazi, ariko ibyiza byo gushyushya imiyoboro ya microwave ni ubushyuhe buke bwo gushyushya imiyoboro, umuvuduko wihuta n’igihe gito cyo gushyushya imiyoboro. Ariko, igipimo cy’ubushyuhe cyo gushyushya umuvuduko w’ikirere gitebuka buhoro, igihe cyo gushyushya imiyoboro ni kirekire, kandi igihe cyose cyo gushyushya imiyoboro ni amasaha 6-11. Ugereranyije no gushyushya umuvuduko usanzwe, gushyushya imiyoboro ya microwave ni uburyo bushya bwo gushyushya imiyoboro, bufite ibyiza byo gushyushya imiyoboro igihe gito, imikorere myiza no kuzigama ingufu, kandi bushobora kunoza imiterere y’ibikoresho bya ceramic.
Hari abahanga bemeza kandi ko zirconia nyuma yo gushyushya muri mikoroonde ishobora gukomeza kuba metastable tequartet phase, birashoboka ko gushyushya muri mikoroonde vuba bishobora gutuma ibintu byiyongera vuba ku bushyuhe buri hasi, ingano y'ibinyampeke iba nto kandi ingana kurusha iyo pressure isanzwe ishyushya, ikaba iri hasi y'ingano ya t-ZrO2, ibi bikaba byiza mu kugumana uko bishoboka kose mu buryo metastable ku bushyuhe bw'icyumba, bikongera imbaraga n'ubukomere bw'ibikoresho bya ceramic.
Uburyo bwo gukaraba kabiri
Ibumba rya zirconia rito rikozwe mu buryo bwa sintered rishobora gutunganywa gusa hakoreshejwe ibikoresho byo gukata emery bitewe n'ubukana n'imbaraga nyinshi, kandi ikiguzi cyo gutunganya ni kinini kandi igihe ni kirekire. Kugira ngo ibibazo byavuzwe haruguru bikemuke, rimwe na rimwe ibumba rya zirconia rikoreshwa inshuro ebyiri mu gusya, nyuma yo gukora umubiri wa ceramic no gusya bwa mbere, CAD / CAM amplification machining kugeza ku ishusho wifuza, hanyuma rigasya kugeza ku bushyuhe bwa nyuma bwo gusya kugira ngo ibikoresho bibe byinshi cyane.
Byaragaragaye ko inzira ebyiri zo gushwanyagurika zizahindura imiterere y’imashini zikora zirconia, kandi zizagira ingaruka ku bucucike bw’imashini zikora zirconia, imiterere ya mekanike n’imiterere mito ya mekanike zirconia. Imiterere ya mekanike zirconia zikora zirconia zikozwe mu buryo bwa machine zirushwanyagurika iyo zimaze kuba nyinshi ni myiza kuruta izikozwe mu buryo bwa machine zirushwanyagurika iyo zimaze kuba nyinshi ni nziza kuruta izikozwe mu buryo bwa machine zirconia zirushwanyagurika iyo zimaze kuba nkeya ni nyinshi kuruta izikozwe mu buryo bwa machine zirconia zirushwanyagurika iyo zimaze kuba nkeya ni nyinshi kurusha izikozwe mu buryo bwa machine zirconia zirushwanyagurika iyo zimaze kuba nkeya. Uburyo bwo gushwanyagurika bw’imashini zikora zirconia zirushwanyagurika ni transgranular/intergranular, kandi crack strike iba igororotse. Uburyo bwo gushwanyagurika bw’imashini zikora zirconia zirushwanyagurika inshuro ebyiri ahanini ni intergranular fracture, kandi icyerekezo cyo gushwanyagurika kiragoye cyane. Imiterere ya composite fracture mode ni myiza kuruta simple intergranular fracture mode.
Umwanya wo gukaraba ibintu
Zirconia igomba gucukurwa ahantu hadakoreshejwe umwuka, mu gihe cyo gucukurwa hazavamo uduce twinshi tw’uduce, kandi mu gihe cyo gucukurwa, uduce tworoshye gusohoka mu mubiri wa porcelain ushongeshejwe, bikongera ubucucike bwa zirconia, bityo bikongera ubushobozi bwo kwinjira no gukora neza kwa zirconia.
Igipimo cyo gushyushya
Mu gikorwa cyo gutwika zirconia, kugira ngo haboneke umusaruro mwiza n'umusaruro witezwe, hagomba gukoreshwa igipimo cyo gushyushya gito. Igipimo cyo gushyushya kinini gituma ubushyuhe bw'imbere bwa zirconia bungana iyo bugeze ku bushyuhe bwa nyuma bwo gutwika, bigatera kugaragara kw'imyanya no kurema imyenge. Ibisubizo bigaragaza ko uko igipimo cyo gushyushya kiyongera, igihe cyo gutwika zirconia kiba gito, umwuka uri hagati ya zirconia ntushobora gusohoka, kandi porosity iri mu zirconia yiyongera gato. Uko igipimo cyo gushyushya kiyongera, ingano nto ya crystal monoclinic itangira kubaho mu gice cya tetragonal cya zirconia, bizagira ingaruka ku miterere ya mekanike. Muri icyo gihe, uko igipimo cyo gushyushya kiyongera, ingano zizaba polarized, ni ukuvuga ko kubaho kw'ingano nini n'into biroroshye. Igipimo cyo gushyushya gito gituma habaho ingano nyinshi, ibyo byongera ubushobozi bwo kwinjira muri zirconia.
Igihe cyo kohereza: Kanama-15-2023