About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Advances in Powder and Ceramic Materials Science
|
Presentation Title |
Rare-earth Doped Polycrystalline Alumina for High-energy Laser Applications |
Author(s) |
Ross E. Turner, Xingzhong Wu, Yasuhiro Kodera, Javier Garay |
On-Site Speaker (Planned) |
Ross E. Turner |
Abstract Scope |
This work explores processing of rare-earth doped aluminum oxide (or alumina) powders and the densification of bulk ceramic alumina as optical materials. Alumina has a much higher thermal conductivity when compared to traditional laser host materials such as Yttrium Aluminum Garnet (YAG) or other sesquioxides, and solid state laser power directly scales with the thermal conductivity of the laser host material. Doping alumina with rare-earths has historically been difficult but some new methods will be shared with respect to polycrystalline alumina. Processing techniques and conditions that significantly affect the ceramic microstructure will be presented. In addition we will explore the specific impact of the varying microstructure on the bulk ceramic optical properties. These bulk ceramics show high transmission at both the absorption and emission wavelengths, demonstrating their capability as new laser host materials for high-energy laser applications. |
Proceedings Inclusion? |
Planned: |
Keywords |
Ceramics, Powder Materials, High-Temperature Materials |