Weibull Analysis and Area Scaling for Infrared Window Materials (U)

Abstract

This report provides a tutorial on the Weibull distribution of strength of ceramic materials and the use of the maximum likelihood method of American Society for Testing and Materials (ASTM) C1239 to obtain Weibull parameters from a set of test coupons. Parameters compiled from test data of infrared window materials are used to predict the static probability of failure of an optical window in the absence of slow crack growth. This report emphasizes how the strength of a window scales inversely with the size of the window. Test data are given for aluminum oxynitride (ALON), calcium fluoride, chemical vapor deposited (CVD) diamond, fused quartz, germanium, magnesium fluoride, yttria-magnesia nanocomposite optical ceramic (NCOC), polycrystalline alumina, sapphire (a-plane, c-plane, and r-plane), magnesium aluminum spinel, yttria, zinc selenide, and zinc sulfide (standard and multispectral grades).

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Aug 01, 2016
Accession Number
AD1018793

Entities

People

  • Daniel C. Harris

Organizations

  • Naval Air Warfare Center, Weapons Division

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Sensors

DTIC Thesaurus Topics

  • Aluminum
  • Ceramic Materials
  • Compound Semiconductors
  • Crystals
  • Data Sets
  • Diamonds
  • Elements
  • Failure Mode And Effect Analysis
  • Films
  • Fluorides
  • Grain Size
  • Infrared Windows
  • Materials
  • Optical Materials
  • Polycrystals
  • Silica Glass
  • Silicon Carbide

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Powder metallurgy of Titanium alloys.
  • Surface Engineering/Surface Coating Technology.