Structured Polymer-Derived Ceramic Composites via Near-Infrared Thermal Stereolithography.

ABSTRACT: We have developed near-infrared (NIR) thermal stereolithography (SLA) to print 2.5D-structured polymer-derived ceramic (PDC) composites with high SiC particle loadings in a PDC matrix. When combined with polymer infiltration and pyrolysis (PIP), this approach overcomes the challenges associated with traditional ultraviolet-based printing techniques when printing composite resins, namely, low light penetration, limited particle loadings, high shrinkage, and weak mechanical properties. Using an NIR laser to deliver spatially controlled thermal energy to the surface of a reactive resin pool induces localized thermally initiated free-radical polymerization in a top-down SLA configuration. After printing the green body, postprocessing methods, including debinding and PIP, are employed to densif

SUBMITTER: Wang E 

PROVIDER: S-EPMC12305487 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature