DIELECTRICS FOR SATELLITES AND SPACE VEHICLES

Abstract

Results of a study of simulated space environment on the electrical properties of solid dielectric materials are reported. High-vacuum sparkover measurements in the presence of a strong magnetic field show that the breakdown voltage does not depend on effects produced by primary electrons striking the anode. Preliminary results indicate that x-ray induced conductivity in Mylar- C, TFE-7 and polyethylene was voltage dependent. Mylar-C is temperature dependent showing a complex behavior in the range of the second-order transition temperature. Insufficient data does not permit final conclusions. X-ray induced a-c losses in TFE resins (previously reported) are greatly influenced by the presence of oxygen during sintering. Diffusion (specimen thickness) plays a minor role in irradiation effects on a-c loss properties.

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Document Details

Document Type
Technical Report
Publication Date
Apr 30, 1963
Accession Number
AD0409168

Entities

People

  • A.m. Muhlbaum
  • Edward A. Szymkowiak
  • Louis J. Frisco

Organizations

  • Johns Hopkins University

Tags

Communities of Interest

  • Advanced Electronics
  • Space

DTIC Thesaurus Topics

  • Body Weight
  • Dielectric Permittivity
  • Dielectric Polymers
  • Dielectric Properties
  • Dielectrics
  • Dissipation Factor
  • Electrical Properties
  • Field Emission
  • Manufacturing
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Measurement
  • Radiation Effects
  • Resins
  • X Rays

Fields of Study

  • Physics

Readers

  • Electrical Engineering
  • Materials Science and Engineering.
  • Polymer Science and Engineering.

Technology Areas

  • Microelectronics
  • Space
  • Space - Hall-Effect Thruster