About this Abstract |
Meeting |
MS&T21: Materials Science & Technology
|
Symposium
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Advanced Materials for Harsh Environments
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Presentation Title |
RF Radomes and IR Windows for Hypersonic Flight: Material Requirements and Development of Ceramic Processing Routes for Success |
Author(s) |
Rodney W. Trice, Averyonna Kimery, Ashwin Sivakumar, Jeffrey Youngblood, Carlos Martinez, Andrew Schlup |
On-Site Speaker (Planned) |
Rodney W. Trice |
Abstract Scope |
While hypersonic aircraft have the same needs to receive and send electromagnetic signals for navigation and tracking as typical aircraft, the RF radomes and IR windows that protect antennae and/or sensors must survive the extreme aerothermal environment consistent with high-speed flight, including surface temperatures of 1500oC or greater. In this presentation, we discuss a review of the open literature on the material requirements for RF and IR transmission, microstructure requirements for each as a function of wavelength, along with our ongoing investigations fabricating porous silicon nitride for RF transmission and pore-free alumina for IR transmission. |