Title :
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
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;
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
DOI :
10.1109/ULTSYM.2008.0358
