Diamond-ZnS composite infrared window

Akihito Fujii; Hideo Wada; Ken-ichiro Shibata; Shigeru Nakayama; Masato Hasegawa

doi:10.1117/12.439177

7 September 2001 Diamond-ZnS composite infrared window

Akihito Fujii, Hideo Wada, Ken-ichiro Shibata, Shigeru Nakayama, Masato Hasegawa

Proceedings Volume 4375, Window and Dome Technologies and Materials VII; (2001) https://doi.org/10.1117/12.439177
Event: Aerospace/Defense Sensing, Simulation, and Controls, 2001, Orlando, FL, United States

Abstract

Rain erosion is a critical problem in the use of conventional Zinc Sulfides as infrared window and dome. In this study, the diamond-ZnS composite, which dispersed diamond particles into a zinc sulfide matrix, was fabricated for improved durability against rain erosion. It was found that mechanical properties, such as hardness, fracture strength and Young modulus of the diamond-ZnS composite improved with the increase in diamond particles. Furthermore the diamonds-ZnS composite consisted of two layers, a diamond dispersed layer and a pure ZnS layer. They have a 280-350kg/mm² hardness, which is 1.5 times higher than conventional ZnS, while maintaining about 55~70% in average transmittance at the wavelength of 10micrometers bands.

Citation Download Citation

Akihito Fujii, Hideo Wada, Ken-ichiro Shibata, Shigeru Nakayama, and Masato Hasegawa "Diamond-ZnS composite infrared window", Proc. SPIE 4375, Window and Dome Technologies and Materials VII, (7 September 2001); https://doi.org/10.1117/12.439177

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