Effects of Spacecraft Materials Outgassing Products on Cryogenic Surfaces

Abstract

Optical property measurements of condensed contaminant films on cryogenically cooled substrates were reported in AEDC-TR-87-8 and AEDC-TR-89-2. Measurements for five additional materials and three material mixtures are presented in this report. Infrared spectral transmittance measurements were made for thin films of contaminant deposited on a 77 K germanium window under vacuum conditions. Material temperatures were controlled at 125 deg C to provide the outgassing source. The objective of this report is to present the refractive and absorptive indices of the condensed outgassing products of satellite materials which have been determined from the experimental measurements of infrared transmittance, and to describe an effort to combine optical property data from two materials to provide values that can be used to calculate the surface effects for contaminant mixtures.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1993
Accession Number
ADA262671

Entities

People

  • Bobby E. Wood
  • W. T. Bertrand

Organizations

  • Arnold Engineering Development Complex

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Artificial Satellites
  • Computer Programs
  • Contamination
  • Films
  • Materials Laboratories
  • Measurement
  • Optical Properties
  • Quartz Crystal Microbalances
  • Refractive Index
  • Space Systems
  • Spacecraft
  • Thick Films
  • Thin Films
  • Transmittance
  • United States

Readers

  • Environmental Remediation and Restoration.
  • Optical Physics and Photonics.
  • Polymer Science and Engineering.

Technology Areas

  • Space