| About this Abstract |
| Meeting |
Materials Science & Technology 2019
|
| Symposium
|
Ceramic and Crystal Materials for Optics and Photonics
|
| Presentation Title |
Transparent Ceramic for Extreme Environment |
| Author(s) |
Woohong (Rick) Kim, Shyam Bayya, Guillermo Villalobos, Michael Hunt, Fritz Miklos, Bryan Sadowski, Jasbinder Sanghera |
| On-Site Speaker (Planned) |
Woohong (Rick) Kim |
| Abstract Scope |
Cubic β-SiC is of great interest for various extreme applications such as hypersonic and supersonic windows and domes due to its high strength, high thermal shock resistance, and good vis-IR transparency. In addition, its low density is advantageous for various applications where weight savings are critical. However, the synthesis of pure β-SiC powder is very difficult and most of commercial powders of β-SiC contain phase, chemical, and physical impurities. The sintered samples become opaque due to the scattering resulting from these impurities. This paper discusses the synthesis and optical/physical properties of phase pure β-SiC powder using unique two step sol-gel method. Sintering behavior of the powder as well as various commercial powders is also reported. |