Elastic Coefficients and Internal Friction of Silicon Monocrystal Spheres

Abstract

Using mechanical-spectroscopy methods, we measured the elastic-stiffness coefficients of four spheres of high-quality monocrystal silicon. Within 1 part in 1000, the C(sub ij) agreed with that reported by Bell Laboratories more than thirty years ago. We attribute the internal friction Q(sub ij)(exp -1) mainly to dislocations. Departure from the Koehler-Granato-Lucke vibrating-string model suggest dislocation-kink motion.

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Document Details

Document Type
Technical Report
Publication Date
Jun 04, 2001
Accession Number
ADP011286

Entities

People

  • Hassel Ledbetter
  • Sudook Kim

Organizations

  • National Institute of Standards and Technology

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Crystals
  • Equations
  • Frequency
  • Friction
  • Internal Friction
  • Materials
  • Materials Science
  • Measurement
  • Phase Transformations
  • Piezoceramics
  • Piezoelectric Crystals
  • Piezoelectric Materials
  • Piezoelectricity
  • Single Crystals
  • Solid State Physics
  • Standards
  • Stiffness

Readers

  • Analytical Mechanics
  • Computational Modeling and Simulation
  • Materials Science and Engineering.