Work

Structural and microstructural evolution of fused filament fabricated SiOC(N) via polymer-derived ceramics route

Year: 2025

Type: article

Abstract: Cellular SiOC(N) ceramics were produced by impregnating a 3D-printed TPU lattice with polysilazane, followed by pyrolysis in an inert atmosphere. During pyrolysis, TPU decomposes while polysilazane converts to ceramic. The process was analyzed across the full temperature range via weight loss, shrinkage, density, porosity, specific surface area, FTIR and Vickers hardness. TPU decomposes between 380 and 550 °C with significant weight loss, while ceramization of polysilazane occurs between 550 and 800 °C, forming SiOC(N). Transient micro- and mesoporosity develops only at 600–700 °C. Skeletal density and hardness increase steadily up to 1200 °C.

Source: Open Ceramics

DOI: 10.1016/j.oceram.2025.100839

Authors: Rajat Chaudhary, Jonathan Selorm Degbedzui, Mattia Biesuz, Gian Domenico Sorarù

Institutions: University of Trento, National Interuniversity Consortium of Materials Science and 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

Funders: Fondazione Cassa Di Risparmio Di Trento E Rovereto, Air Force Office of Scientific Research, European Office of Aerospace Research and Development