Crack Velocity Dependence of Electron Emission During Fracture of Filled Elastomers.

Abstract

We examine the electron emission accompanying the fracture of filled elastomers, which in previous work we have shown to be intense and due predominately to interfacial failure. In this study we show that there is a strong velocity dependence on the rate of electron emission during the propagation of a crack in filled silicon rubber and polybutadiene filled with glass beads. We propose that the concentration of free radicals produced by crack propagation increases rapidly with crack velocity which in turn produces more intense electron emission by a chemi-emission mechanism. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Nov 15, 1981
Accession Number
ADA108446

Entities

People

  • J. T. Dickinson
  • L. C. Jensen

Organizations

  • Washington State University

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Adhesives
  • Chemistry
  • Crack Propagation
  • Crack Tips
  • Electron Emission
  • Engineering
  • Free Radicals
  • Materials
  • Materials Laboratories
  • Military Research
  • Photoexcitation
  • Physics
  • Polybutadiene
  • Polymers
  • Rubber
  • Synthetic Rubber
  • Universities

Readers

  • Materials Science (Mechanical Engineering).
  • Polymer Science and Engineering.
  • Pulsed Power and Plasma Physics.

Technology Areas

  • Microelectronics