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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 Carbide Based Fiber Growth by Laser Chemical Vapor Deposition
Author(s) Kenan Fronk , Charlie Cook, Gregory B. Thompson
On-Site Speaker (Planned) Gregory B. Thompson
Abstract Scope Laser Chemical Vapor Deposition (LCVD) is an additive process in which freestanding fibers are deposited by the thermal dissociation of a precursor gas-to-solid form under a translating laser focal point. By altering gas type, laser power, growth speed, and chamber pressure, LCVD offers a substantial processing space in tailoring fiber microstructures. Using different hydrocarbon precursors, i.e., methane (CH4), ethane (C2H6), ethylene (C2H4), and propane (C3H8), various growth regimes are identified which include surface kinetic limited, mass transport limited, and gas phase nucleation, with each regime promoting a different fiber microstructure. These differences are explained by the type of bond structure (single, double, triple) and available carbon per molecule for deposition. Using this information, a series of TiC fibers were then grown by reacting the hydrocarbon precursor with TiCl4. The results of which reveal the ability to create single to core shell fibers dependent upon the reaction temperature and hydrocarbon precursor.


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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