| About this Abstract |
| Meeting |
MS&T23: Materials Science & Technology
|
| Symposium
|
Engineering Ceramics: Microstructure-Property-Performance Relations and Applications
|
| Presentation Title |
Porous Silicon Nitride Ceramics for RF Radomes Fabricated by Slip Casting |
| Author(s) |
Averyonna Kimery, Rodney Trice, Carlos Martinez |
| On-Site Speaker (Planned) |
Averyonna Kimery |
| Abstract Scope |
Radomes are used to protect the antenna of aircraft during high-speed flight while still maintaining transmission of electromagnetic waves. Silicon nitride has attracted interest as a radar frequency (RF) radome material because of its low dielectric constant and loss, and suitable high temperature mechanical and thermal properties. Porosity can be incorporated into silicon nitride materials to further lower the dielectric constant and improve the performance of the radome. In this study, a slip casting method was used to fabricate silicon nitride with varying levels of porosity using ytterbium oxide and various sintering temperatures. Microstructure and physical properties will be reported. |