Physical Acoustics: Principles and Methods, Volume XII, covers the fundamental physical phenomena and important engineering applications of physical acoustics.
This volume is composed of five chapters, and begins with the presentation of the theoretical concepts and experimental data concerning the role of long-wavelength acoustic phonons in Jahn-Teller phase transitions. The second chapter highlights the use of superconducting tunneling junctions as phonon generators and detectors followed by a discussion on ultrasonic wave propagation in glasses at low temperatures in the third chapter. The fourth chapter explores various integral transform methods for describing the elastic response to acoustic pulsed. These methods include spatial Fourier and/or Bessel transforms the Watson-Sommerfeld transformation or the Poisson summation formula, and the Fourier or Laplace transform for the time behavior. The final chapter outlines the measurement methods for ultrasonic phase and group velocities and attenuation together with their industrial applications.
Contributors Preface 1 The Anomalous Elastic Properties of Materials Undergoing Cooperative Jahn-Teller Phase Transitions I. Introduction II. The Jahn-Teller Effect III. Theory of Elastic Properties of Cooperative Jahn-Teller Systems IV. Application to Rare Earth Crystals V. Transition Metal Ion Compounds VI. Summary References 2 Superconducting Tunneling Junctions as Phonon Generators and Detectors I. Introduction II. Basic Aspects of Phonon Generation and Detection by Single-Particle Tunneling in Superconductors III. Basic Experiments IV. Quantitative Phonon Detection Model V. Phonon Emission Spectra VI. Applications VII. Further Applications and Final Remarks References 3 Ultrasonic Properties of Glasses at Low Temperatures I. Introduction II. Microscopic Structure of Glasses III. Ultrasonic Properties of Glasses above Helium Temperature IV. Anomalous Acoustic and Thermal Behavior of Glasses below Helium Temperature V. Phenomenological Explanation of the Low-Temperature Behavior VI. Microscopic Model VII. Conclusion References 4 Acoustical Response of Submerged Elastic Structures Obtained through Integral Transforms I. Introduction II. Normal-Mode Solution of the Pulse Problem III. Experiments and Numerical Mode Calculations IV. Watson-Sommerfeld Transform V. Geophysical and Materials-Testing Problems References Note Added in Proof 5 Ultrasonic Velocity and Attenuation: Measurement Methods with Scientific and Industrial Applications I. Introduction II. Velocity III. Absolute Accuracy of the Pulse-Echo-Overlap Method and the Pulse Superposition Method for Ultrasonic Velocity IV. Attenuation V. Industrial Applications VI. Summary References Bibliography Author Index Subject Index Contents of Previous Volumes
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- © Academic Press 1976
- 28th December 1976
- Academic Press
- eBook ISBN: