Casting of Halide and Fluoride Alloys for Laser Windows

Abstract

During the first quarter of this program several important goals were accomplished. The problem of residual strain in castings of halides (KCl and SrCl2 doped KCl) and fluorides (pure CaFs) has been largely overcome by using proper annealing and cooling procedures. Large castings (5 1/2 in. diameter) of CaF2 have been produced with low optical absorption coefficients at 5.25 micrometers. Semi-quantitative analysis of absorption coefficients and scattering centers has been initiated with preliminary results showing a correlation between the two. Reactive atmosphere processing (RAC) of castings has begun.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jul 15, 1974
Accession Number
ADA954858

Entities

People

  • D. W. Readey
  • H. A. Newborn
  • R. T. Newberg

Organizations

  • RTX

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Chemical Analysis
  • Crystal Structure
  • Crystals
  • Heat Energy
  • Heat Treatment
  • Materials
  • Materials Processing
  • Materials Science
  • Measurement
  • Mechanical Properties
  • Mechanical Working
  • Optical Materials
  • Optical Properties
  • Refractive Index
  • Scattering
  • Temperature Gradients
  • Yield Strength

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Powder metallurgy of Titanium alloys.

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers