Optical Emission Spectroscopy during Plasmatron Testing of ZrB₂-SiC Ultrahigh-temperature Ceramic Composites
Abstract
Optical emission spectroscopy is used to investigate the oxidation of a hot-pressed ZrB2-SiC ultrahightemperature ceramic composite tested in the 1.2 MW Plasmatron facility at the von Kármán Institute for Fluid Dynamics. Time-resolved spectra enable the in situ detection and temporal characterization of electronically excited B, BO, andBO2 species concentrations directly adjacent to the oxidizing sample surface. The evolution of these boron species correlates well with the transient formation of a complex multilayer oxide scale containing a silica-rich glassy outer layer that limits oxide growth.
Recommended Citation
M. Playez et al., "Optical Emission Spectroscopy during Plasmatron Testing of ZrB₂-SiC Ultrahigh-temperature Ceramic Composites," Journal of Thermophysics and Heat Transfer, American Institute of Aeronautics and Astronautics (AIAA), Apr 2009.
The definitive version is available at https://doi.org/10.2514/1.39974
Department(s)
Materials Science and Engineering
Sponsor(s)
United States. Air Force. Office of Scientific Research
European Office of Aerospace Research and Development
National Science Foundation (U.S.)
International Standard Serial Number (ISSN)
0887-8722
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2009 American Institute of Aeronautics and Astronautics (AIAA), All rights reserved.
Publication Date
01 Apr 2009
