Fabrication of BaF2 Infrared Windows.
Final technical rept. 1 Dec 73-31 Aug 74,
BATTELLE COLUMBUS LABS OHIO
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The feasibility was investigated of the fabrication of polycrystalline BaF2 windows for infrared lasers by the hot isostatic pressing process HIP. A method of treatment with HF gas for the preparation and surface cleanup of the BaF2 powder was developed. The HIP conditions for densification, sintering and grain growth of BaF2 bodies were determined. Light transmission through the BaF2 windows was found to be limited by scattering by intergranular gaseous pores or intragranular voids. The HIP process by the present techniques amenable for the fabrication of windows for use with high power infrared lasers. Author
- Lasers and Masers