| About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing of High and Ultra-High Temperature Ceramics and Composites: Processing, Characterization and Testing
|
| Presentation Title |
Strategies for Printing Continuous Fibers and Post-processing for Ceramic Matrix Composites (CMCs) |
| Author(s) |
Corson L. Cramer, Vipin Kumar, Ryan Duncan, David J. Mitchell, Vlastimil Kunc |
| On-Site Speaker (Planned) |
Corson L. Cramer |
| Abstract Scope |
Recent advances in AM of continuous fibers, combined with traditional infiltration processes, have enabled the fabrication of ceramic matrix composite (CMC) components with complex shapes. In this work, we report results of the manufacturing processes, characterization and evaluation of silicon carbide composites fabricated by compression molding, additive manufacturing, and automatic fiber placement of carbon and silicon carbide fibers. Continuous fibers are formed with printing matrices such as thermoplastics and thermosets such as phenolic resins and preceramic polymers. Pyrolysis of the printing matrix materials is done to form carbon coatings around printed fibers, and the fiber preforms are densified with strategies such as polymer impregnation and pyrolysis (PIP), reactive silicon melt infiltration (RMI), and chemical vapor infiltration (CVI). The ability to make continuous fiber preforms and densify to make advanced CMCs is demonstrated, and the role of continuous fibers and microstructure on mechanical properties is discussed. |