3YSZ, kapena zomwe titha kuzitcha tetragonal zirconia polycrystal (TZP), zimapangidwa ndi zirconium oxide yomwe yakhazikika ndi 3% mol yttrium oxide.

Magiredi a zirconia awa ali ndi njere zing'onozing'ono komanso zolimba kwambiri kutentha kwa chipinda chifukwa pafupifupi onse ali ndi tetragonal. Ndipo kukula kwake kakang'ono kanjere (sub-micron) kumapangitsa kuti zitheke kutha bwino komanso kukhala ndi malire akuthwa.

Zirconia nthawi zambiri imagwiritsidwa ntchito ngati stabilizer ndi MgO, CaO, kapena Yttria kulimbikitsa kusintha kwamphamvu. M'malo motulutsa koyamba kutulutsa mawonekedwe a kristalo wa tetragonal kwathunthu, izi zimapanga gawo lina la kiyubiki la kristalo lomwe limatha kukhazikika pakazizira. Tetragonal precipitates imakumana ndi kusintha komwe kumapangitsa kupsinjika kufupi ndi nsonga yakutsogolo ya mng'alu ikakhudza. Njirayi imapangitsa kuti kamangidwe kake kakukulirakulirabe pomwe imatenga mphamvu zambiri, zomwe zimapangitsa kuti zinthu izi zikhale zolimba kwambiri. Kutentha kwakukulu kumapangitsanso kusintha kwakukulu, komwe kumakhudza mphamvu ndipo kumayambitsa kukula kwa 3-7%. Powonjezera zosakaniza zomwe tatchulazi, kuchuluka kwa tetragonal kumatha kuwongolera kuti pakhale pakati pa kulimba ndi kutaya mphamvu.

Pa kutentha kwa chipinda, tetragonal zirconia yokhazikika ndi 3 mol% Y2O3 (Y-TZP) imawonetsa ntchito yabwino kwambiri potengera kulimba, mphamvu yopindika. Ikuwonetsanso zinthu monga ma ionic conductivity, kutsika kwamafuta otsika, kulimba pambuyo pakusintha, komanso mawonekedwe amakumbukiro. Tetragonal zirconia imapangitsa kuti zitheke kupanga zida za ceramic zokhala ndi corrosion kukana, kukana kuvala kwapamwamba, komanso kumaliza kwabwino kwambiri.

Mitundu yamtunduwu imathandiza kuti igwiritsidwe ntchito kwambiri m'malo ngati malo opangira mankhwala opangira chiuno ndikumanganso mano, komanso m'munda wa nyukiliya ngati chotchinga chotchinga chamafuta muzotchinga zamafuta.