Physical Acoustics V8

Physical Acoustics V8

Principles and Methods

1st Edition - January 1, 1971

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  • Editor: Warren P. Mason
  • eBook ISBN: 9780323151955

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Description

Physical Acoustics: Principles and Methods, Volume VIII discusses a number of themes on physical acoustics that are divided into seven chapters. Chapter 1 describes the principles and applications of a tool for investigating phonons in dielectric crystals, the spin phonon spectrometer. The next chapter discusses the use of ultrasound in investigating Landau quantum oscillations in the presence of a magnetic field and their relation to the strain dependence of the Fermi surface of metals. The third chapter focuses on the ultrasonic measurements that are made by pulsing methods with velocities obtained through phase comparison methods and attenuations obtained through comparing pulse heights for successive reflections. In Chapter 4, methods for measuring the properties of solids and liquids at very high pressures are described. Chapter 5 explores some of the relationships between the thermal equilibrium properties of solids and mechanical properties such as the second- and third-order elastic constants. The sixth chapter discusses the interaction of sound waves with thermal phonons in dielectric crystals and emphasizes the relationship between the various theories proposed and the effect of phonon interactions on the velocity of sound. The last chapter describes the applications to metals and rock mechanics of internal friction at low frequencies due to dislocations. This book is beneficial to students and physicists conducting work on physical acoustics.

Table of Contents


  • Contributors

    Preface

    1 Spin-Phonon Spectrometer

    I. Introduction

    II. Spin-Ρhonon Interaction

    III. Optical Detection of the Spin Population

    IV. Divalent Thulium

    V. Detection of Monochromatic Acoustic Waves

    VI. Phonon Generation by Spins

    VII. Heaters as Broad-Band Phonon Sources

    VIII. Phonon Interference in Thin Liquid Helium Films

    Appendix. Derivation of Diffusion Equation

    References

    2 Landau Quantum Oscillations of the Velocity of Sound and the Strain Dependence of the Fermi Surface

    I. Introduction

    II. Theory of Landau Quantum Effects

    III. Experimental Methods

    IV. Experimental Results

    V. Comparison with Existing Data

    VI. Summary

    References

    3 High-Frequency Continuous Wave Ultrasonics

    I. Introduction

    II. Theory: Propagating Wave Model

    III. CW Ultrasonic Resonator Assemblies and Probes

    IV. CW Spectrometer Systems

    V. Sampled-CW Technique and Spectrometers

    VI. Acoustic Mössbauer Effect Spectrometer

    VII. Applications

    Appendix. Transmission-Line Equivalent Circuit of Composite Resonator

    References

    4 Ultrasonic Measurements at Very High Pressures

    I. Introduction

    II. Review of Ultrasonic Measurements at High Pressures

    III. Ultrasonic Measurements in Piston and Die Systems

    IV. Summary

    References

    5 Third-Order Elastic Constants and Thermal Equilibrium Properties of Solids

    I. Introduction

    II. Thermodynamics of Imperfect Crystals

    III. Dislocations

    IV. Point Defects

    V. Phonons

    References

    6 Interaction of Sound Waves with Thermal Phonons in Dielectric Crystals

    I. Introduction

    II. Landau-Rumer Theory

    III. Boltzmann Equation Method

    IV. Comparison of Approaches

    V. Attenuation and Velocity for Ωτ < 1

    VI. Attenuation and Velocity for Ωτ > 1

    VII. Miscellaneous Problems

    Appendix

    Symbols

    References

    7 Internal Friction at Low Frequencies Due to Dislocations: Applications to Metals and Rock Mechanics

    I. Introduction

    II. Measurement of Internal Friction for Three Rocks

    III. Grain Boundary Internal Friction and Dislocation Parameters

    IV. Derivation of the Low- and High-Frequency Components of Dislocation Attenuation

    V. Application of Theory to Alloys and Impure Metals

    VI. Application of Dislocation Theory to the Internal Friction in Moon and Earth Rocks

    References

    Author Index

    Subject Index

    Contents of Previous Volumes

Product details

  • No. of pages: 404
  • Language: English
  • Copyright: © Academic Press 1971
  • Published: January 1, 1971
  • Imprint: Academic Press
  • eBook ISBN: 9780323151955

About the Editor

Warren P. Mason

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