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Meeting MS&T23: Materials Science & Technology
Symposium Additive Manufacturing of High and Ultra-high Temperature Ceramics and Composites: Processing, Characterization and Testing
Presentation Title Additive Manufacturing of Silicon Nitride Using Stereolithography
Author(s) Corson L. Cramer, Beth Armstrong, Trevor Aguirre, Steve Bullock, David Mitchell
On-Site Speaker (Planned) Corson L. Cramer
Abstract Scope Additive Manufacturing (AM) of silicon nitride using UV-curable slurries for stereolithography continues to draw interest for the fabrication of complex shaped ceramic components for high temperature applications. The complexity and control of macro features as well as surface roughness lower than most techniques are advantageous, but the high refractive index of Si3N4 can make it difficult to obtain cure depths for printing. Thus, slurries for printing dark material are formulated. The slurry formulations and development follow the same rules as traditional ceramics processing. Here, various powder sizes, solids loading, dispersants, and photoinitiators are used and the effects on rheology, cure depth, and zeta potential are shown. Debinding and sintering is done to show efficacy of the prints to full density. Microstructures of printed and sintered samples will be shown.


3D Printing of Ceramic Composites
A-9: Advanced Manufacturing of Complex Zirconium Carbide Structures for Space Nuclear Propulsion
Additive Manufacturing for Functionally Graded Advanced Ceramics
Additive Manufacturing of Silicon Carbide Ceramics at the Micron-/nano- Particle Size for Hypersonic Capabilities
Additive Manufacturing of Silicon Nitride Using Stereolithography
Anisotropic Shrinkage of Additively Manufactured Ceramics Via Stereolithography
Carbide Based Fiber Growth by Laser Chemical Vapor Deposition
Effect of Variations in Carbon Fiber Loading of Silicon Carbide and Zirconium Diboride Cmcs Through Direct Ink Writing
Extrusion Based 3-D Printing of Reinforced SiC Using Hydrogel Pastes
Interpenetrating Phase Heterogeneous Ceramic-refractory Metal Composite Materials Created via Additive Manufacturing
Residual Stress in Additively Manufactured Alumina via Stereolithography
Robocasting Sintered SiC and Alumina for Extreme Applications
Towards Binder Jet Additive Manufacturing of High-temperature Ceramics - Understanding the Fundamentals to Overcome Processing Challenges
Vat Photopolymerization-based Additive Manufacturing of Different Non-oxide Ceramics

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