Location

La Jolla, CA

Start Date

1-1-1989 12:00 AM

Description

Three different regimes for scattering of ultrasonic waves in poly-crystalline materials exist, depending on the ratio of the mean grain size to the wavelength: (i) the low frequency (Rayleigh) region with scattering-induced attenuation proportional to the fourth power of the frequency and to the cube of the mean grain diameter, (ii) the medium frequency (stochastic) region with scattering proportional to the square of the frequency and to the mean grain diameter, and (iii) the high-frequency (geometric) region with scattering independent of frequency.

Volume

8B

Chapter

Chapter 9: Characterization of Materials

Section

Properties

Pages

1739-1745

DOI

10.1007/978-1-4613-0817-1_220

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Theoretical Study of High Frequency Ultrasonic Wave Attenuation in Polycrystalline Materials

La Jolla, CA

Three different regimes for scattering of ultrasonic waves in poly-crystalline materials exist, depending on the ratio of the mean grain size to the wavelength: (i) the low frequency (Rayleigh) region with scattering-induced attenuation proportional to the fourth power of the frequency and to the cube of the mean grain diameter, (ii) the medium frequency (stochastic) region with scattering proportional to the square of the frequency and to the mean grain diameter, and (iii) the high-frequency (geometric) region with scattering independent of frequency.