Work

UV-assisted drop casting of photocurable ceramic suspensions: The role of venting and organic additives in dense zirconia beads manufacturing

Year: 2025

Type: article

Abstract: UV-assisted drop casting is an effective technique for shaping ceramic beads; however, venting ceramic suspensions remains a critical factor in achieving well-densified structures. This study investigates optimal venting strategies for manufacturing zirconia beads. Four systems were evaluated, differing in the presence of an anti-foaming agent and additional vacuum venting. The viscosity of the suspensions was studied, and then ceramic beads were obtained by the UV-assisted drop casting method. The sintered beads were then analyzed for their sphericity, size distribution, Vickers hardness, fracture toughness and cross-sectional porosity. In addition, the microstructure of the series that was found to be the best was analyzed in detail. As a result of the study, a mixing and venting procedure was selected that minimizes defects and produces zirconia beads with good mechanical properties and uniform morphology.

Source: Open Ceramics

DOI: 10.1016/j.oceram.2025.100899

Authors: Blanka Seredynska, Karolina Korycka, Radoslaw Zurowski, Pawel Falkowski

Institution: Warsaw University of Technology

Language: English

Topic: Advanced ceramic materials synthesis

Subfield: Ceramics and Composites

Field: Materials Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,000

Funder: Politechnika Warszawska