Lightweight Zerodur Mirror Technology

Abstract

The manufacturing techniques applicable to the fabrication of lightweight passive mirror blanks from Zerodur glass-ceramic are demonstrated. The techniques include bending and welding Zerodur to form lightweight eggcrate cores and frit bonding thin facesheets to the cores. Physical property measurements show that the joints meet the requirements for a mirror blank design. The thermal performance of a lightweight Zerodur mirror is predicted analytically and is superior to the performance of conventional ULE mirrors. The cost and schedule for establishing a large mirror blank fabrication facility are estimated.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1982
Accession Number
ADA123538

Entities

People

  • Da-wun Shen
  • George J. Gardopee

Tags

Communities of Interest

  • Air Platforms
  • Ground and Sea Platforms
  • Human Systems
  • Space

DTIC Thesaurus Topics

  • Climate Change
  • Construction
  • Crystal Structure
  • Engineering
  • Geometry
  • Heat Transfer
  • Joining
  • Manufacturing
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Mechanical Working
  • Modulus Of Elasticity
  • Temperature Gradients
  • Thermal Conductivity
  • Thermal Properties

Fields of Study

  • Physics

Readers

  • Optical Fiber Sensing and Electromagnetic Propagation.
  • Reinforced Composite Materials