High temperature piezoelectric single crystals: Sr3NbGa3Si2O14, Sr3TaGa3Si2O14 and GdCa4O(BO3)3

Author

Sotnikov, A. ; Schmidt, H. ; Weihnacht, M. ; Hengst, M. ; Möckel, R. ; Götze, J. ; Heide, G.

Author_Institution

IFW Dresden, Dresden, Germany

fYear

2012

fDate

9-13 July 2012

Firstpage

1

Lastpage

3

Abstract

We have successfully grown high quality piezoelectric single crystals of Sr₃NbGa₃Si₂O₁₄ (SNGS), Sr₃TaGa₃Si₂O₁₄ (STGS) and GdCa₄O(BO₃)₃ (GdCOB) by the Czochralski technique. Dielectric, elastic and piezoelectric constants of SNGS and STGS were measured in a temperature range from 25°C to 400°C. Some parameters of SNGS, STGS and GdCOB crystals important for acoustic applications have been investigated also at temperatures up to 940°C. The strong piezoelectric activity of all investigated materials is kept at least up to this high temperature.

Keywords

acoustic applications; crystal growth from melt; elastic constants; gadolinium compounds; gallium compounds; niobium compounds; permittivity; piezoelectric materials; strontium compounds; tantalum compounds; Czochralski technique; GdCa₄O(BO₃)₃; Sr₃NbGa₃Si₂O₁₄; Sr₃TaGa₃Si₂O₁₄; acoustic applications; dielectric constants; elastic constants; high quality piezoelectric single crystals; high temperature piezoelectric single crystals; piezoelectric constants; strong piezoelectric activity; temperature 25 degC to 400 degC; Crystals; Dielectric measurements; Temperature dependence; Temperature distribution; Temperature measurement; dielectric; elastic; piezoelectric properties; pizoelectric single crystals;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of Ferroelectrics held jointly with 2012 European Conference on the Applications of Polar Dielectrics and 2012 International Symp Piezoresponse Force Microscopy and Nanoscale Phenomena in Polar Materials (ISAF/ECAPD/PFM), 2012 Intl Symp

Conference_Location

Aveiro

Print_ISBN

978-1-4673-2668-1

Type

conf

DOI

10.1109/ISAF.2012.6297781

Filename

6297781