| About this Abstract |
| Meeting |
MS&T23: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing of Ceramic-based Materials: Process Development, Materials, Process Optimization and Applications
|
| Presentation Title |
The Influence of Print Layer Orientation on the Mechanical Properties of SIC and CF/SIC CMCS Formed via Direct Ink Writing |
| Author(s) |
Rodney W. Trice, Kyle Cox, Jeffrey Youngblood |
| On-Site Speaker (Planned) |
Rodney W. Trice |
| Abstract Scope |
Silicon carbide (SiC) is a useful ceramic due to its excellent mechanical properties at high temperature, making it a candidate material for advanced applications such as leading edges for hypersonic flight. In this study, monolithic SiC and carbon fiber reinforced (Cf)/SiC ceramic matrix composites were additively manufactured via direct ink writing (DIW). Carbon-fiber loading was 10 vol%, while overall solids loading was held constant at 53 vol.%. When added to the ink, fibers were aligned parallel to the direction of the nozzle print path. Characteristic strengths for monolithic SiC and 10 vol.% Cf/SiC samples were nominally the same for the 0o print path, measuring 360-375 MPa. However, the Weibull modulus for the 10 vol.% Cf/SiC samples was greater than the monolithic SiC samples. SEM and optical microscopy were used to analyze printed parts, showing a high degree of fiber alignment in the direction of the print, and fiber pullout. |