Innovative Acoustic Techniques for Studying New Materials and New Developments in Solid State Physics

Abstract

The goals of this project involve the use of innovative acoustic techniques to study new materials and new developments in solid state physics. Major accomplishments include (a) the preparation and publication of a number of papers and book chapters, (b) the measurement and new analysis of more samples of aluminum quasicrystal and its cubic approximant, to eliminate the possibility of sample artifacts, (c) the use of resonant ultrasound to measure acoustic attenuation and determine the effects of heat treatment on ceramics, (d) the extension of our technique for measuring even lower (possibly the lowest) infrared optical absorption coefficient, and (e) the measurement of the effects of disorder on the propagation of a nonlinear pulse, and (f) the observation of statistical effects in measurements of individual bond breaking events in fracture.

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Document Details

Document Type
Technical Report
Publication Date
Jun 21, 1994
Accession Number
ADA280986

Entities

People

  • Julian D. Maynard

Organizations

  • Pennsylvania State University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Absorption
  • Acoustics
  • Condensed Matter Physics
  • Continuous Waves
  • Contracts
  • Diffraction
  • Diseases And Disorders
  • Frequency
  • Heat Energy
  • Materials
  • Measurement
  • Solid State Physics
  • Students
  • Subatomic Particles
  • Surface Waves
  • Universities
  • Wave Propagation

Fields of Study

  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.
  • Systems Analysis and Design