Development of near-net dome shaped ZnS window for the infrared region using Spark Plasma Sintering technique

Jabri Khaled; Tomohiro Sato; Manabu Koide; Hiroshi Sato

doi:10.1117/12.2586053

12 April 2021 Development of near-net dome shaped ZnS window for the infrared region using Spark Plasma Sintering technique

Jabri Khaled, Tomohiro Sato, Manabu Koide, Hiroshi Sato

Author Affiliations +

Proceedings Volume 11740, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXXII; 117400Z (2021) https://doi.org/10.1117/12.2586053
Event: SPIE Defense + Commercial Sensing, 2021, Online Only

Abstract

Near-net dome shaped ZnS window for the infrared region has been investigated using the Spark Plasma Sintering (SPS) technique. A dome with a large diameter of around 140mm and a height of more than 70mm has been successfully developed. The anti-reflection coated dome has optical transmittance of more than 94% and Knoop hardness above 220. We have found that in addition to the use of SPS technique, the refinement of the commercially used ZnS powder and its purification prior to sintering of the ZnS window was effective in enhancing the sintering time and improving the optical and mechanical properties of the window.

Conference Presentation

Citation Download Citation

Jabri Khaled, Tomohiro Sato, Manabu Koide, and Hiroshi Sato "Development of near-net dome shaped ZnS window for the infrared region using Spark Plasma Sintering technique", Proc. SPIE 11740, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXXII, 117400Z (12 April 2021); https://doi.org/10.1117/12.2586053

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