Acoustic waves measurements on SNGS crystals and determination of material constants

Author

Chilla, E. ; Kunze, R. ; Weihnacht, M. ; Bohm, J. ; Heimann, R.B. ; Hengst, M. ; Straube, U.

Author_Institution

Vectron Int., Teltow, Germany

Volume

1

fYear

2003

fDate

5-8 Oct. 2003

Firstpage

92

Abstract

We have determined the material parameters of SNGS (Sr₃NbGa₃Si₂O₁₄). The elastic material constants were derived from bulk acoustic wave (BAW) measurements and surface acoustic wave (SAW) measurements. Starting with the elastic tensor determined from BAWs we optimized the data set by investigating the influence of the elastic tensor components on the angular dispersion of SAW. The electromechanical coupling coefficient was derived from SAW measurement on open and short-circuited Y-cut. Additionally we measured dielectric parameters.

Keywords

acoustic dispersion; acoustic wave propagation; acoustic wave velocity measurement; elastic constants; electromechanical effects; gallium compounds; niobium compounds; strontium compounds; surface acoustic waves; BAW measurements; SAW measurements; Sr₃NbGa₃Si₂O₁₄; Sr₃NbGa₃Si₂O₁₄ crystals; acoustic waves measurements; angular dispersion; bulk acoustic wave measurements; elastic tensor; electromechanical coupling coefficient; material constants; material parameters; open circuited Y cut; short circuited Y cut; surface acoustic wave measurements; Acoustic devices; Acoustic materials; Acoustic measurements; Acoustic waves; Crystalline materials; Crystals; Dielectric measurements; Surface acoustic waves; Temperature; Tensile stress;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics, 2003 IEEE Symposium on

Print_ISBN

0-7803-7922-5

Type

conf

DOI

10.1109/ULTSYM.2003.1293363

Filename

1293363