| 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 |
High-temperature Performance of LCVD SiC Fiber-Reinforced CMCs |
| Author(s) |
Mark C. Schaefer, Jeff Vervlied, Kirk Williams, Joseph Pegna |
| On-Site Speaker (Planned) |
Jeff Vervlied |
| Abstract Scope |
Free Form Fibers is a materials development company that specializes in the production of high-temperature materials by means of Laser-induced Chemical Vapor Deposition (LCVD), a container-less material-agnostic approach that deposits material directly from the gas phase. The LCVD approach can be seen as an additive manufacturing technique, growing material in "1 and 1/2 dimensions" (1.5 D). Silicon carbide fibers produced at Free Form Fibers (FFF) by LCVD have previously been discussed. This current project will study the performance of LCVD SiC fibers in fiber-reinforced composite structures. Test coupons were fabricated using FFF's AM-based LCVD fibers as a nonwoven preform as the reinforcement phase in a silicon nitride matrix. The flexural performance was tested at room temperature and at elevated temperatures of 2700 F. The creep, tensile, and inter laminar shear testing will be conducted, with the resulting thermal and mechanical behavior to be discussed. |