Effect of Thermal Cycling

Abstract

The objective of this effort is to evaluate the stability of low expansion Zerodur, developmental Zerodur, ULE, and Cer-Vit as possible substrate materials for high energy laser mirrors. This effort will determine whether there is instability in developmental Zerodur, ULE and Cer-Vit over operating temperatures and coating temperatures (300-475K). Zerodur has already been shown to exhibit instability. Thermal cycling will be investigated as a possible approach to eliminate or reduce hysteresis. The effect of polishing on hysteresis will also be investigated.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1988
Accession Number
ADA196851

Entities

People

  • Stephen F. Jacobs

Organizations

  • University of Arizona

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Classification
  • Dilatometers
  • Films
  • Frequency
  • Governments
  • Heat Treatment
  • High Energy Lasers
  • Illinois
  • Laser Beams
  • Lasers
  • Materials
  • Measurement
  • Standards
  • Thermal Expansion
  • United States
  • United States Government

Fields of Study

  • Physics

Readers

  • Control Systems Engineering.
  • Optical Fiber Sensing and Electromagnetic Propagation.
  • Surface Engineering/Surface Coating Technology.

Technology Areas

  • Directed Energy
  • Directed Energy - Pulsed-Laser Deposition