| About this Abstract |
| Meeting |
MS&T22: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing of High and Ultra-high Temperature Ceramics and Composites: Processing, Characterization and Testing
|
| Presentation Title |
Strategies for Printing Fibers and Post-processing for Ceramic Matrix Composites (CMCs) |
| Author(s) |
Corson L. Cramer, David J. Mitchell, James Klett, Vlastimil Kunc |
| On-Site Speaker (Planned) |
Corson L. Cramer |
| Abstract Scope |
Continuous and long, chopped carbon fibers are 3D printed with thermoplastics, and pyrolysis converts the fiber reinforced polymer to porous carbon fiber-reinforced carbon matrix. Samples were densified using three approaches: 1) melt infiltration (MI) of Si to create SiC by reacting with carbon matrix 2) chemical vapor infiltration (CVI) of SiC to make ceramic matrix composites (CMCs) and 3) polymer impregnation and pyrolysis (PIP). Results are shown from manufactured preforms, pyrolysis, infiltration, microstructure, and bend strength from samples made via fused filament fabrication (FFF), laminate 3D printing, and automatic fiber placement (AFP). The laminate 3D printing approach may have the ability to form more complex shapes versus continuous fiber FFF of AFP. |