Accession Number : AD0786679

Title :   Fabrication of BaF2 Infrared Windows.

Descriptive Note : Final technical rept. 1 Dec 73-31 Aug 74,


Personal Author(s) : Austin,A. E. ; Mueller,J. J. ; Miller,J. F. ; Brog,K. C.

Report Date : 30 SEP 1974

Pagination or Media Count : 68

Abstract : 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)

Descriptors :   *Infrared windows, *Infrared optical materials, *Infrared lasers, Barium halides, Fabrication, Hot pressing, Sintering, Porosity

Subject Categories : Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE