The Material Response of PICA-NuSil to a Hypersonic Flow Environment
The Material Response of PICA-NuSil to a Hypersonic Flow Environment
- Neue Suche nach: Brody K. Bessire
- Neue Suche nach: Jeremie B. E. Meurisse
- Neue Suche nach: Nagi N. Mansour
- Neue Suche nach: Francesco Panerai
- Neue Suche nach: Brody K. Bessire
- Neue Suche nach: Jeremie B. E. Meurisse
- Neue Suche nach: Nagi N. Mansour
- Neue Suche nach: Francesco Panerai
Phenolic Impregnated Carbon Ablator (PICA) is NASA’s baseline thermal protection system for missions to Mars. PICA is friable; therefore, NuSil® CV-1144-0 is applied to the surface of flight hardware to mitigate the contamination of spacecraft sensors. NuSil is composed of a polysiloxane resin system that can transform into an oxidation-resistant coating upon heating. Therefore, a pathfinder campaign was conducted at the Hypersonic Materials Environmental Test System (HyMETS) at the NASA Langley Research Center to investigate the material response of instrumented sphere-cone models made from PICA coated with NuSil®. Analysis of the post-test data is presented and suggests that NuSil® impacts the material response of test articles subjected to oxidizing atmospheres, as evidenced by a reduction of the measured surface temperature and in-depth temperature response. Finally, a four-step ablation mechanism is proposed based on observations from high-speed video, optical emission spectroscopy, thermal analysis, and post-test surface characterization.
Dokumentinformationen
The Material Response of PICA-NuSil to a Hypersonic Flow Environment
AIAA AVIATION Forum and Exposition ; 2023 ; San Diego, CA, US
Aufsatz (Konferenz)
Keine Angabe
Englisch