Fabrication Of XLWIR Window Materials

Hyoun-Ee Kim; A. J. Moorhead

doi:10.1117/12.951442

30 June 1989 Fabrication Of XLWIR Window Materials

Hyoun-Ee Kim, A. J. Moorhead

Proceedings Volume 1050, Infrared Systems and Components III; (1989) https://doi.org/10.1117/12.951442
Event: OE/LASE '89, 1989, Los Angeles, CA, United States

Abstract

A technique was developed for fabrication of strong, fully dense, polycrystalline windows of CsI by hot-pressing in a steel die. We began with ultra-pure, ultra-dry CsI powder and conducted all processing operations within a glove box purged with dry N2. We were able to hot-press 5.08 cm CsI discs having transmittance of about 80% in the extra long wavelength (≥ 10 μm) infrared range--equivalent to that of single crystal CsI. The flexural strength of CsI bars fabricated by hot-pressing small-particle-size powder was 18 MPa, about 5 times higher than that of single crystal CsI.

Citation Download Citation

Hyoun-Ee Kim and A. J. Moorhead "Fabrication Of XLWIR Window Materials", Proc. SPIE 1050, Infrared Systems and Components III, (30 June 1989); https://doi.org/10.1117/12.951442

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