Plasticity in Shocked Single Crystals Viewed by Pulsed X-Ray Diffraction

Abstract

X-ray diffraction from single LiF crystals was performed parallel (Bragg orientation) and transverse (Laue orientation) to shock fronts generated by nanosecond laser pulses. Subgrain boundaries are noticeably affected by the shock. Transverse elastic strain with both tensile and compressive components is seen. These novel observations are interpreted as evidence of dislocation motion and the onset of plasticity.

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Document Details

Document Type
Technical Report
Publication Date
Oct 05, 1991
Accession Number
ADA241404

Entities

People

  • Justin S. Wark
  • Robert R. Whitlock

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Boundaries
  • Crystals
  • Diffraction
  • Dislocations
  • Geometry
  • Laser Pulses
  • Military Research
  • Nanosecond Time
  • Orientation (Direction)
  • Plastic Deformation
  • Plastic Properties
  • Radiation
  • Single Crystals
  • Subatomic Particles
  • Transverse
  • X Rays
  • X-Ray Diffraction

Fields of Study

  • Physics

Readers

  • Combustion Dynamics and Shock Wave Physics.
  • Nanofabrication and Microfabrication.
  • Powder metallurgy of Titanium alloys.

Technology Areas

  • Directed Energy