Composition, processing, and properties of biphasic zirconia bioceramics: relationship to competing strength and optical properties.

ABSTRACT: A study is made of relationships between composition, processing, structure and properties of biphasic zirconia bioceramics. The focus is on zirconia compositions with different yttria dopant contents used in modern dental restorations, namely 3 - 5 mol% yttria stabilized zirconia (3YSZ, 4YSZ, and 5YSZ). Crystallographies and densities are surveyed, sintering conditions examined, and microstructures characterized. Strength and optical tests are conducted on each YSZ, and dependencies on sintering temperature, cubic content and grain size analyzed. Strength correlates with the amount of tetragonal zirconia (t-ZrO₂) crystals with large lattice distortions (tetragonality). YSZ translucency correlates with content of cubic zirconia (c-ZrO₂) and t-ZrO<

SUBMITTER: Lim CH 

PROVIDER: S-EPMC10497227 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature