5D-5 Tailored Single Crystal Orientations for Improved Tonpilz Transducer Performance

Author

Snook, Kevin A. ; Rehrig, Paul W. ; Hackenberger, Wesley S. ; Meyer, Richard J., Jr. ; Markley, Douglas

Author_Institution

TRS Technol., Inc., State College, PA

fYear

2006

fDate

2-6 Oct. 2006

Firstpage

359

Lastpage

362

Abstract

Various transverse length extensional modes of single crystal piezoelectrics were evaluated for high power capabilities and compared with the longitudinal "33" mode. Both bar and tube geometries, and d₃₁ and d₃₂ piezoelectric modes were explored. The elastic, piezoelectric and dielectric properties were evaluated under dynamic conditions using a matrix of stress, temperature and electric field conditions. Crystallographic orientation significantly affected domain stability; poling along the lang001rang axis showed a higher phase transition point, relative to stress and temperature, than the lang110rang orientation. The optimized transverse mode (d₃₁) showed significantly improved properties due to the orthogonal relationship between electric field and pre-stress; strains over 0.2% were recorded

Keywords

acoustic transducers; crystal orientation; dielectric polarisation; elasticity; phase transformations; piezoelectric materials; Tonpilz transducer; crystallographic orientation; dielectric property; domain stability; elastic property; phase transition point; piezoelectric property; poling; single crystal orientations; single crystal piezoelectrics; transverse length extensional modes; Capacitance; Crystallography; Educational institutions; Geometry; Piezoelectric transducers; Resonance; Resonant frequency; Stability; Stress; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 2006. IEEE

Conference_Location

Vancouver, BC

ISSN

1051-0117

Print_ISBN

1-4244-0201-8

Electronic_ISBN

1051-0117

Type

conf

DOI

10.1109/ULTSYM.2006.104

Filename

4151960