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Meeting MS&T24: Materials Science & Technology
Symposium Additive Manufacturing of Ceramic-based Materials: Process Development, Materials, Process Optimization and Applications
Presentation Title Fused Filament Fabrication of Ceramic Matrix Composite Preforms Via Thermo-Oxidative Stabilization of Polyetheretherketone
Author(s) Dustin Gilmer, Samuel Pankratz, Corson Cramer, James Klett, Greg Larsen, Uday Vaidya
On-Site Speaker (Planned) Dustin Gilmer
Abstract Scope Carbon-fiber-reinforced ceramic matrix composites (CMCs) are frequently used in applications where high thermo-mechanical loads are induced along with weight limitations. Recent work has demonstrated a new method to produce discontinuous fiber preforms through various forms of additive manufacturing, including fused filament fabrication (FFF). This work uses polyetheretherketone with discontinuous carbon fibers (CF PEEK) to additively manufacture the carbon-rich polymer precursor, which can be subsequently processed for higher densification. Critically, thermoplastic precursor materials suffer severe instability during pyrolysis as they move from melt to degradation. This work evaluates oxidative stabilization of the additively manufactured preform to preserve form at the macrostructural and microstructural scales. The chemical process undergone pre-pyrolysis and its dependence on oxygen is evaluated in depth. By developing an understanding of the conversion process, it is possible to form stable additively manufactured preforms for further processing steps and opens new avenues for manufacturing of high-temperature CMCs.


Dense Complex Shape Ceramic Components Fabricated By Digital Light Printing (DLP) and Liquid Silicon Infiltration (LSI)
Densification and Microstructure Evolution of Alumina Structures via Direct Ink Writing
Density Improvement of Binder Jet Printed MnZn Ferrite Cores via Pre-and Post- Sintering Improvement Strategies
Direct Ink Writing of SiOC Structure from Preceramic Polymer containing Inactive Fillers
Dispersion of PMN-PZT for Direct Ink Writing
Fused Filament Fabrication of Ceramic Matrix Composite Preforms Via Thermo-Oxidative Stabilization of Polyetheretherketone
Influence of Printing Parameters on the Stability and Quality of 3D Printed Geopolymers from Copper Mine Tailings
Interface Stability of Iron-Carbide Materials Fabricated via Laser-Direct Energy Deposition
Irradiative Ceramization of Chemically Bound Phosphate Ceramics (CBPCs) to Enable Direct Additive Manufacturing of Ceramic Composites
Laser-Directed Energy Deposition Additive Manufacturing of Lunar Highlands Simulant (LHS-1) Lunar Regolith Simulant for In Situ Resource Utilization
Multi Ceramic Additive Manufacturing Based on Novel Digital Light Processing Technology
Optimizing SiC Slurries for Robocasting High-Performance SiC.
Rapid Volumetric Microwave Curing of Silicon Nitride Ceramic Binder Mixtures
Stabilization of Alumina Dispersed Slurry by Controlling pH
Towards Direct Additive Manufacturing of Bulk Ceramics Using Selective Laser Flash Sintering
Use of 2D Ti3C2 MXene as an Additive in SiC and Their High-Temperature Phase Behavior
Using Laser Ultrasonics to Correlate Young’s Modulus to Particle Neck Size in Early-Stage Sintering

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