Analytical properties of SAW phase velocity function from algebraic and thermodynamic points of view

Author

Barkaline, Viatcheslav V.

Author_Institution

Intelligent Syst. Dept., Belarussian State Polytech. Acad., Minsk, Belarus

Volume

1

fYear

2001

fDate

2001

Firstpage

443

Abstract

SAW phase velocity V is shown to be the algebraic function of the effective elastic moduli and density of the deformed monocrystalline waveguide material. From thermodynamic viewpoint V is a function of local thermodynamic parameters of the near-surface layer of waveguide and its crystallographic orientation. The exact differential of this function is represented analytically by introducing tensor W_ijkl of partial derivatives of V with respect to the elastic moduli. Algebraic properties of W_ijkl are studied to reduce number of its independent components. W_ijkl dependence on interatomic forces parameters is discussed for more then 60 waveguide materials

Keywords

elastic moduli; surface acoustic wave waveguides; thermodynamics; SAW phase velocity; SAW waveguides; algebraic function; crystallographic orientation; deformed monocrystalline waveguide material; effective elastic moduli; exact differential; independent components; interatomic forces parameters; local thermodynamic parameters; near-surface layer; partial derivatives; Boundary conditions; Crystalline materials; Crystallography; Equations; Intelligent systems; Stress; Surface acoustic waves; Surface waves; Temperature dependence; Thermodynamics;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 2001 IEEE

Conference_Location

Atlanta, GA

Print_ISBN

0-7803-7177-1

Type

conf

DOI

10.1109/ULTSYM.2001.991659

Filename

991659