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Physical Acoustics V6
Principles and Methods
1st Edition - January 1, 1970
Editor: Warren P. Mason
eBook ISBN:
9 7 8 - 0 - 3 2 3 - 1 5 1 6 7 - 2
Physical Acoustics: Principles and Methods, Volume VI provides five chapters covering the whole of physical acoustics. The first chapter extends the methods for studying high… Read more
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Physical Acoustics: Principles and Methods, Volume VI provides five chapters covering the whole of physical acoustics. The first chapter extends the methods for studying high frequency sound waves in the hypersonic range by the technique of Brillouin scattering. The next chapter discusses the acoustic properties of materials of the perovskite structure. These materials have ""soft"" modes, which are transverse optic modes of the phonon spectrum that have unusually low and strongly temperature dependent frequencies. This chapter expounds the influence of the soft modes, with particular attention to potassium tantalate and strontium titanate. The third chapter gives a theoretical treatment of the properties and possibilities of surface waves in crystals that are becoming of increasing interest for delay lines, amplifiers of sound waves, and other practical applications. The fourth chapter discusses the experimental methods and results of the dynamic shear properties of solvents and polystyrene solutions from 20 to 300 MHz, including a description of its materials and steady-flow properties. The final chapter deals with condensed helium, which requires quantum reactions to account for its properties. While the experimental data on solid helium are still insufficient, this chapter gives both a theoretical and an experimental account of sound propagation in solid helium, including various liquid forms. This book is recommended to both students and physicists conducting research on physical acoustics.
ContributorsPrefaceContents of Previous Volumes1 Light Scattering as a Probe of Phonons and Other Excitations I. Introduction II. Theory III. Experimental Apparatus and Techniques IV. Brillouin Experiments as an Extension of Ultrasonics V. Brillouin Scattering in the Study of Phase Transitions VI. Phonon Interactions with Other Excitations VII. Scattering from Other than Acoustic Phonons VIII. Stimulated Scattering of Light References2 Acoustic Properties of Materials of the Perovskite Structure I. Introduction II. Ferroelectricity and Lattice Dynamics III. Theory of Ultrasonic Attenuation in Soft-Mode Materials IV. Potassium Tantalate V. Strontium Titanate VI. Suggestions for Further Work References3 Properties of Elastic Surface Waves I. Introduction II. Formulation of the Problem III. Isotropic Substrates IV. Iterative Search Procedures V. Calculated Results VI. Piezoelectric Effects VII. Energy Flow VIII. Pseudosurface Waves References4 Dynamic Shear Properties of Solvents and Polystyrene Solutions from 20 to 300 MHz I. Introduction II. Experimental Methods III. Materials and Steady-Flow Properties IV. Results References5 The Propagation of Sound in Condensed Helium I. Introduction II. Theory of Sound Propagation in Superfluids III. 4He IV. Propagation of Sound in 3He-4He Solutions V. The Lambda Transition VI. 3He VII. Solid Helium Appendix ReferencesAuthor IndexSubject Index
- No. of pages: 408
- Language: English
- Published: January 1, 1970
- Imprint: Academic Press
- eBook ISBN: 9780323151672