High‐Performance Polymer‐derived Ceramics in LCD 3D Printing

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: March 17, 2025

Abstract This study demonstrates the fabrication of high‐strength, lightweight polymer‐derived ceramics (PDCs) using silicon oxycarbide (SiOC)‐precursor formulations with liquid crystal display (LCD) vat photopolymerization (VPP) technology. Complex geometries, such as gyroids and stochastic lattices, are successfully 3D‐printed evaluated under varying feature thicknesses pyrolysis temperatures (800 °C 1200 °C). Photorheology thermogravimetric analysis (TGA) validated efficient curing characteristics a printable precursor formulation based on vinyl methoxysiloxane homopolymer (VMM‐010), which demonstrated rapid curing, low viscosity, compatibility LCD 3D printing, ensuring precise layering resin removal. Micro‐CT scans confirmed its structural integrity absence voids, even in relatively thick components (≈3 mm). The VMM‐based PDC lattices achieved specific compressive strengths up to 9.4 MPa g⁻¹ cm 3 , 50‐fold improvement over comparable produced high‐porosity SiOC PDC, exceptional high‐temperature stability, maintaining after 2 h at 1500 °C. Compositional revealed lower free carbon content improved ceramic phase formation, driving enhanced mechanical thermal performance ceramic. These findings underscore scalability, reliability, superior VMM for offering new possibilities high‐performance applications aerospace, automotive, biomedical industries.

Language: Английский

Preparation, physicochemical characterization and cellular responses of 3D-printed calcium-magnesium-strontium phosphate bioceramic scaffolds for bone defect repair

Ceramics International, Journal Year: 2025, Volume and Issue: unknown

Published: March 1, 2025

Language: Английский