Formation of translucent nanostructured zirconia ceramics. Issue 13 (October 2021)

• Record Type: Journal Article
• Authors: Laganovska, K.; Olsteins, D.; Smits, K.; Bite, I.; Bikse, L.
• Is Part Of: Journal of the European Ceramic Society. Volume 41:Issue 13(2021)
• Page Start: 6641
• Page End: 6648
• Publication Date: 2021-10
• Subjects: Translucent ceramics -- Nanostructured ceramics -- Pore formation -- Zirconia -- Up-conversion; Ceramic materials -- Periodicals; Composite materials -- Periodicals; Matériaux céramiques -- Périodiques; Composites -- Périodiques; Ceramic materials; Composite materials; Periodicals; Electronic journals; 666.05
• DOI: 10.1016/j.jeurceramsoc.2021.06.005
• Languages: English
• ISSNs: 0955-2219

Abstract

Highlights: Translucent zirconia ceramics obtained for the first time by low temperature and low pressure synthesis. Studies of the defect impact on the structure and translucency of zirconia ceramics. Pore size dependence on annealing temperatures and impact on translucency. Abstract: In this work the mechanisms that affect the optical transparency of nanostructured translucent ZrO2 ceramics are studied. The translucent ceramic samples were obtained from a low agglomeration nanosized powder at low pressure and low temperature sintering. Even low pressures cause structural changes and defect creation in the nanocrystals. Annealing was used to study the grain formation, structure and impact of defects. Significant changes in translucency were observed with increase in pore size. In order to further understand the defect creation, the obtained ceramics were doped with Er 3+ ions and studied optically. Photoluminescence studies revealed a change in the ratio of green to red parts of the spectrum as well as luminescence quenching when samples were pressed into pellets. Additionally, grain and pore size dependence on annealing temperatures was studied using X-ray diffraction, scanning electron microscopy and transmission electron microscopy.