About this Abstract |
Meeting |
MS&T22: Materials Science & Technology
|
Symposium
|
Solid-state Optical Materials and Luminescence Properties
|
Presentation Title |
Beta-SiC for High Strength Windows |
Author(s) |
Joshua Gild, Kim Woohong, Shyam Bayya, Guillermo Villalobos, Adam Floyd, Bryan Sadowski, Tony Zhou, Jasbinder Sanghera |
On-Site Speaker (Planned) |
Joshua Gild |
Abstract Scope |
Cubic β-SiC is an appealing material for rugged high temperature optical windows due to a low coefficient of thermal expansion, high thermal conductivity and thermal shock resistance, and transparency in the visible to IR range. To fabricate a high transparency window, phase and chemically pure powder precursors must be obtained. While the majority of commercial powder is alpha-SiC with significant impurities, an increasing amount of β-SiC powders are becoming commercially available. Multiple sources of commercial β-SiC are analyzed and further purified to minimize scattering and absorption in the sintered product. The powders are densified via spark plasma sintering (SPS) and the optical and physical properties of the sintered β-SiC are discussed. |