Isesengura rya tekiniki ry'amasahani ya ZTA Ceramic Rubber Vulcanized adashobora kwambarwa cyane

Isahani ya ZTA (Zirconia Toughened Alumina) ya keramike ya vulcanized ni ikintu kidapfa kwangirika cyakorewe mu buryo bwihariye mu bihe bikomeye byo kwangirika. Iki gicuruzwa gihuza keramike ya ZTA (ubusanzwe igizwe na 75%-80% Al₂O₃ na 20%-25% ZrO₂) hamwe na keramike isanzwe ifite ubushyuhe bwinshi hamwe n'icyuma gishyigikira icyuma binyuze mu nzira igezweho yo kwangirika, ifite bolts zishyirwamo mbere kugira ngo byoroshye kuyishyiraho. Filozofiya y'ingenzi mu gushushanya ikoresha ubushyuhe bwinshi bwa keramike kugira ngo ihangane no kwangirika kw'ibikoresho mu gihe urwego rwa keramike rufata ingufu z'ingaruka, bigatuma habaho ingaruka nziza hagati yo kwangirika no gukomera kw'ingaruka.

Bitewe n'uburyo bwo gukomera bwa zirconia mu guhindura icyiciro, ZTA igaragaza gukomera cyane mu gucika no kudashira kurusha za ceramic zisanzwe za alumina. Ubushakashatsi bwerekana ko composites za ZTA zirimo 20%-25% za zirconia zigaragaza imikorere myiza mu bihe bikomeye byo gucika. Ibipimo bisanzwe bya tekiniki birimo: ubucucike bw'umubyimba ≥4.1-4.3 g/cm³, ubukana bwa Rockwell (HRA) ≥90, ubukana bwa fracture (KIC) ≥3.70 MPa·m1/2, n'imbaraga zo gucika >350 MPa. Mu bizamini by'ibyuka bihindagurika, igipimo cyihariye cyo kwambara kwa ZTA gishobora kuba hasi ya 10⁻⁹ mm³/(N·m), kiruta cyane ceramics za alumina imwe cyangwa zirconia.

Uburyo bwo gukora busaba uburyo bwo gushyushya bugenzurwa neza kugira ngo habeho imbaraga nyinshi zo guhuza ibyuma hagati ya ceramic na rubber. Dukurikije amahame ngenderwaho y'inganda, imbaraga zo guhuza ibyuma hagati ya ceramic na rubber zigomba kurenza 3.5 MPa, aho urwego rwa rubber ubwarwo rugaragaza imbaraga zo gukurura za 12-15 MPa kandi uburebure mu gihe cyo gucika burenze 250%-400%. Imiterere ya vulcanized composite ibuza neza amatafari ya ceramic gucika iyo aguye, mu gihe guhindagurika kwa rubber bigakwirakwiza imbaraga nyinshi, bikarinda urwego rwa ceramic kuvunika nabi. Icyuma gishyigikira ibyuma gituma imiterere y'ibikoresho ikomera iyo gishyizwe ku bikoresho.

Amasahani ya ZTA ya keramike ya vulcanizedzikoreshwa cyane cyane mu byuma byo kohereza ibikoresho, aho ibikoresho binini bikoreshwa mu gutwara ibintu aho usanga ibintu bikunze kugongana no gushwanyagurika. Ugereranyije n'ibikoresho byo kohereza ibikoresho bya alumina ceramic, ZTA itanga igihe cyo gukora ibintu inshuro zirenga 2.5 mu gihe cyo gushwanyagurika, mu gihe igiciro cyayo kikiri hasi cyane ugereranyije n'ibikoresho byo kohereza ibikoresho bya zirconia ceramics, bitanga uburyo bwo kugabanya amafaranga. Ku bikoresho byo kohereza ibikoresho binini, uburebure buhanitse, cyangwa umuvuduko mwinshi w'amazi, ibyuma bya ZTA bya vulcanized ni kimwe mu bisubizo byizewe byo kurinda kwangirika biboneka.