Work

Hybrid direct ink writing of silicone-based emulsions for advanced Biosilicate® scaffolds

Year: 2025

Type: article

Abstract: Preceramic polymer emulsions have recently shown great potential in the production of ceramics featuring a glassy matrix owing to their ability to achieve a high degree of homogenization of fillers, here introduced as aqueous solutions. The present study seeks to extend this strategy to the class of glass-ceramic materials, specifically targeting the Biosilicate® composition. Silicone blends are successfully developed and combined with Direct Ink Writing and thermal treatment in air to fabricate highly porous biosilicate-like scaﬀolds (up to 94% total porosity) with outstanding strength-to-density ratios. Firing under nitrogen atmosphere is also explored focusing on its effects on the crystalline phase assemblage, morphology, and physical properties of the scaﬀolds. Lastly, two post-processing strategies, involving bioresin coating and infiltration respectively, are investigated to mechanically reinforce the air-synthesized polymer-derived scaffolds.

Source: Journal of the European Ceramic Society

DOI: 10.1016/j.jeurceramsoc.2025.118105

Authors: Valeria Diamanti, Hamada Elsayed, Enrico Bernardo

Institution: University of Padua

Language: English

Topic: Additive Manufacturing and 3D Printing Technologies

Subfield: Automotive Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Responsible consumption and production

Open Access status: hybrid

Estimated APC paid: $3,900