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Meeting Materials Science & Technology 2019
Symposium Ceramic and Crystal Materials for Optics and Photonics
Presentation Title Recent Development in Spinel Processing
Author(s) Shyam S. Bayya, Guillermo Villalobos, Woohong Kim, Michael Hunt, Syed Noor Qadri, Lynda Busse, Jesse Frantz, Brandon Shaw, Ishwar Aggarwal, Chris Wilson, Fritz Miklos, Bryan Sadowski, Jas Sanghera
On-Site Speaker (Planned) Shyam S. Bayya
Abstract Scope Transparent magnesium aluminate spinel (MgAl2O4) ceramic has excellent transmission from the UV to mid-wave IR. It is rugged with strength that is 5x that of glass. Spinel is being developed as a sensor window for numerous military platforms. At the U.S. Naval Research Laboratory (NRL), we have focused on process developments to facilitate wider acceptance of spinel for various applications. These developments include purification of spinel to reduce the absorption and scattering losses for use as an exit aperture on High Energy Laser (HEL) systems; fabrication of spinel in conformal shapes for sensing and imaging; and various cost-effective densification methods to reduce manufacturing costs. In this presentation, we will provide an update on all the spinel activities at NRL.


A Comparison of Rare Earth Dopants in a Nanocomposite Material System for Infrared Laser Gain Media
Additive Manufacturing of Transparent Ceramics
Development of Single Crystal Fiber Lasers
Fabrication of Novel Laser Optics by Spark Plasma Sintering Technique
Fabrication Processes for Transparent Polycrystalline YAG, LuAG, and ZnO
Grain Size Dependent Properties Trends in Nanocrystalline Ceramics for Optical Applications
Intriguing Optical Phenomena in Garnet Transparent Ceramic
Investigation of Host Glasses for BaCl2:Eu2+ Layered Thin Films for Medical Imaging
Magneto-optic Ceramics for High-power Laser Applications
Manufacturing of CaLa2S4 Transparent Ceramics by Pressure-assisted Sintering Techniques
Mixed-anion Ceramic Phosphors with Asymmetric Ligand Field for Rare-earths
Non-uniform Yb-doped Ceramic Laser Gain Media: Shaping and Performance
Recent Development in Spinel Processing
Sintering of Nanocrystalline Transparent Zinc Aluminate
Strategies to Strengthen Ceramics for Windows and Domes
Sulfide Ceramics for Optics and Photonics
Synthesis and Processing of Zinc Chalcogenides Optical Materials
Transparent Ceramic for Extreme Environment
Transparent Ceramics for Laser and Optical Applications
Transparent MgAl2O4 Spinel Ceramics with Enhanced Strength via Suppressing the Grain Growth

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