Fabrication of BaF2 Infrared Windows.

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)

Document Details

Document Type
Technical Report
Publication Date
Sep 30, 1974
Accession Number
AD0786679

Entities

People

  • A. E. Austin
  • J. F. Miller
  • J. J. Mueller
  • K. C. Brog

Organizations

  • Battelle Memorial Institute

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Fabrication
  • Grain Growth
  • Infrared Lasers
  • Infrared Windows
  • Isostatic Pressing
  • Lasers
  • Light Transmission
  • Material Forming Processes
  • Polycrystals
  • Pressing (Forming)
  • Scattering
  • Sintering
  • Wave Phenomena
  • Windows

Fields of Study

  • Materials science

Readers

  • Powder metallurgy of Titanium alloys.
  • Thin Film Deposition Science.

Technology Areas

  • Directed Energy