Abstract
Carbon-carbon (C-C) composites are attractive materials for hypersonic flight vehicles but they oxidize in air at temperatures >500°C and need thermal protection systems to survive aerothermal heating. We investigated using multilayers of high-temperature ceramics such as ZrB2 and SiC to protect C-C against oxidation. Our approach combines pretreatment and processing steps to create continuous and adherent high-temperature ceramic coatings from infiltrated preceramic polymers. We tested our protective coatings at temperatures above 2600°C at the National Solar Thermal Testing Facility using controlled cold-wall heat flux profiles reaching a maximum of 680 W/cm2.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1495-1502 |
| Number of pages | 8 |
| Journal | Journal of the American Ceramic Society |
| Volume | 91 |
| Issue number | 5 |
| DOIs | |
| State | Published - May 2008 |
| Externally published | Yes |
ASJC Scopus subject areas
- Ceramics and Composites
- Materials Chemistry