Fabrication of BaF2 Infrared Windows.

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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

Author(s):
Austin, A. E. ; Mueller, J. J. ; Miller, J. F. ; Brog, K. C.
Author Organization(s):
BATTELLE COLUMBUS LABS OHIO
Descriptive Note:
Final technical rept. 1 Dec 73-31 Aug 74,
Pagination:
0068

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
RK-CR-75-11
Contract/Grant Number(s):
DAAH01-74-C-0358
Project Number(s):
DA-1-T-662609-A-308
Monitor Series:
CR-75-11
 Subject Terms
Communities of Interest:
Materials and Manufacturing Processes
Descriptor(s):
*Infrared windows, *Infrared optical materials, *Infrared lasers, Barium halides, Fabrication, Hot pressing, Sintering, Porosity
Field(s)/Group(s):
Lasers and Masers
Keyword(s):
*Barium fluorides
Report Date:
1974 Sep 30