NEW HIGH TEMPERATURE INFRARED TRANSMITTING GLASSES

Abstract

Glasses formed in the Ge-P-Te system have moderately high softening points (as high as 390 C) and are essentially transparent to the IR out to 20 microns wavelength. Their refractive indexes are greater than 3, and their glassforming composition region is the smallest of all the systems evaluated. With the Si-As-Te and Ge-As-Te glass systems as bases, the effect on the optical properties, softening point, and hardness was determined when P, Sb, S, and Se were substituted into the glasses. Efforts to definitely establish the origin of the undesirable absorptions in the most promising glasses will increase. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Apr 30, 1964
Accession Number
AD0440439

Entities

People

  • A. Ray Hilton
  • Maurice J. Brau

Organizations

  • Texas Instruments

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Absorption
  • Absorption Coefficients
  • Amorphous Materials
  • Coefficients
  • Contracts
  • Elements
  • Glass
  • Hardness
  • High Temperature
  • Materials
  • Measurement
  • Military Research
  • Optical Properties
  • Physical Properties
  • Refractive Index
  • Softening Point
  • Spectrometers

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Systems Analysis and Design