Surface Chemistry and Structural Effects in the Stress Corrosion of Glass and Ceramic Materials

Abstract

The phenomena termed fractoemission was monitored in soda-lime-silica glass specimens during slow crack growth. No electron, ion, or photon signals were detected until crack velocities reached approximately (0.01 meters per second). These observations suggest that the more intense fractoemissions observed during fast fracture are due to dissipation of the excess energy associated with unstable crack growth, but more significantly that fractoemissions are not fundamental to crack propagation in glass. Keywords: Surface chemistry, Structural effects of glass and ceramic materials, Stress corrosion, Physical chemistry.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1990
Accession Number
ADA223305

Entities

People

  • Armando Gonzalez
  • Carlo G. Pantano

Organizations

  • Pennsylvania State University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Cantilever Beams
  • Ceramic Materials
  • Charged Particles
  • Chemical Analysis
  • Chemistry
  • Crack Tips
  • Earth Sciences
  • Geochemistry
  • Mass Spectrometry
  • Material Degradation Processes
  • Materials
  • Materials Laboratories
  • Materials Science
  • Measurement
  • Mechanics
  • Silica Glass
  • Vacuum Chambers

Readers

  • Materials Science (Mechanical Engineering).
  • Molecular Photonics/Laser Physics
  • Surface Coatings Technology.

Technology Areas

  • Microelectronics