Particle Emission and Charging Effects Induced by Fracture

Abstract

A series of studies involving the physical consequences of deformation and fracture of materials are presented. These measurements include fracto-emission (FE) experiments on model rocket propellent, two studies on properties of ejecta (macroscopic particles) from materials including explosive crystals, fracture induced electrical breakdown, the detection of free charge carriers accompanying fracture in single crystal Si, Fe studies on polymers, adhesives, single crystal and amorphous inorganics, studies of fracture surfaces using scanning tunneling microscopy and atomic force microscopy, and two studies on the interaction of intense uv laser radiation with materials. The appendix presents a review article on fracto-emission from interfacial failure. Keywords: Crack propagation; Fracture; Particle emission; Fracto-emission; Energetic materials; RDX; Radiation damage; Electrical breakdown; Microcracking; Laser ablation; Surface charge; Fractrography; Crystal defects; Scanning tunneling microscopy; Atomic force microscopy.

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Document Details

Document Type
Technical Report
Publication Date
Jun 15, 1989
Accession Number
ADA210215

Entities

People

  • J. T. Dickinson

Organizations

  • Washington State University

Tags

Communities of Interest

  • Advanced Electronics
  • Biomedical
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Chemical Reactions
  • Chemical Synthesis
  • Chemistry
  • Crystal Structure
  • Electro-Optics
  • Electromagnetic Fields
  • Material Degradation Processes
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Measurement
  • Mechanics
  • Optical Materials
  • Optics
  • Physics Laboratories
  • Quantum Yields
  • Spectroscopy

Fields of Study

  • Physics

Readers

  • Materials Science (Mechanical Engineering).
  • Materials Science and Engineering.
  • Plasma Physics.

Technology Areas

  • Directed Energy