Zirconia transformation
Yttria-stabilized tetragonal zirconia polycrystal has been used as a dental biomaterial for several decades because the fracture toughness and bend strength are increased by a stress-induced transformation-toughening mechanism.
Zirconia exhibits a tetragonal-to-monoclinic phase transformation on cooling, which is accompanied by a 3% to 5% volume increase.
Several polycrystalline zirconia materials have been developed for dental applications, including zirconia toughened alumina (ZTA), partially stabilized zirconia (PSZ), tetragonal zirconia polycrystal (TZP), and fully cubic stabilized zirconia (CSZ).
CSZ is differentiated from the other 3 by its isotropic character, which can enhance light transmission

By |2019-06-14T00:18:24+00:00June 14th, 2019|Uncategorized|