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About this Abstract
Meeting 2026 TMS Annual Meeting & Exhibition
Symposium Advances in Ceramic Materials and Processing
Presentation Title Fabrication of porous ceramics via DLP 3D printing: process optimization from suspension to thermal treatment
Author(s) Insup Kim, Hui-suk Yun, Yong-Jin Yoon
On-Site Speaker (Planned) Insup Kim
Abstract Scope Porous ceramics fabricated by digital light processing (DLP) 3D printing have gained increasing attention due to their tunable microstructure and functionality. This study presents a comprehensive approach to optimizing the entire fabrication process, including suspension formulation, printing, and thermal treatment. A photocurable ceramic suspension incorporating PZT ceramics and pore-forming agents (PFAs) was developed to control pore structure formation. The effects of dispersant concentration on dispersion stability, curing behavior, and surface quality were evaluated, identifying an optimal condition with enhanced precision and reduced viscosity. In addition, UV scattering-induced interfacial modulation between PFAs and the ceramic matrix was achieved by tuning particle size and printing parameters. Finally, thermal debinding at various heating rates revealed that slower heating minimized shrinkage and surface defects while preserving pore morphology. These findings provide a guideline for designing porous ceramic components with improved structural integrity and printing fidelity using DLP 3D printing.
Proceedings Inclusion? Planned:
Keywords Additive Manufacturing, Ceramics, Process Technology

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