Influence of heterogeneous external fields on propagation of bulk acoustic waves in crystals

Author

Sorokin, B.P. ; Marushyak, A.N. ; Aleksandrov, K.S.

Author_Institution

Inst. of Eng. Phys. & Radio Electron., Siberian Fed. Univ., Krasnoyarsk

fYear

2008

fDate

2-5 Nov. 2008

Firstpage

1472

Lastpage

1475

Abstract

Formulas describing the influence of non-homogeneous mechanical pressure on propagation of bulk acoustic waves in crystals have derived. Phase velocity dependence for small amplitude waves in Bi₁₂SiO₂₀ crystal subjected the action of non-homogeneous pressure has been investigated. Under those conditions the behavior of the wave front has researched. Numerical calculation of phase velocity of waves and their directions propagation changing have obtained.

Keywords

acoustic wave propagation; bismuth compounds; deformation; inhomogeneous media; tensors; Bi₁₂SiO₂₀; Green-Christoffel tensor; bulk acoustic wave propagation; heterogeneous external field; nonhomogeneous deformed crystal; nonhomogeneous mechanical pressure; phase velocity dependence; wave front behavior; Acoustic propagation; Acoustic waves; Acoustical engineering; Capacitive sensors; Crystallization; Crystals; Elasticity; Equations; Physics; Tensile stress; bulk elastic wave; non-homogeneous mechanical loading; phase velocity; wave surface;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 2008. IUS 2008. IEEE

Conference_Location

Beijing

Print_ISBN

978-1-4244-2428-3

Electronic_ISBN

978-1-4244-2480-1

Type

conf

DOI

10.1109/ULTSYM.2008.0358

Filename

4803313