Title :
Piezoelectric and elastic properties of SNGS and STGS single crystals at elevated temperatures
Author :
Sotnikov, A.V. ; Weihnacht, M. ; Schmidt, H. ; Suschke, K. ; Hengst, M. ; Götze, J.
Author_Institution :
A.F.Ioffe Phys.-Tech. Inst., St. Petersburg
Abstract :
We have successfully grown high quality piezoelectric single crystals of Sr3NbGa3Si2O14 (SNGS) and Sr3TaGa3Si2O14 (STGS) by the Czochralski technique. The piezoelectric stress constant epsiv11 and dielectric permittivity epsiv11 as well as elastic constants C11 E and C66 E were determined at temperatures up to 930degC for both crystals.
Keywords :
crystal growth from melt; elastic constants; gallium compounds; niobium compounds; permittivity; piezoelectric materials; strontium compounds; tantalum compounds; Czochralski technique; Sr3NbGa3Si2O14; Sr3TaGa3Si2O14; dielectric permittivity; elastic constants; piezoelectric single crystals; piezoelectric stress constant; temperature 930 C; Acoustic measurements; Crystalline materials; Crystals; Dielectric constant; Dielectric materials; Dielectric measurements; Piezoelectric materials; Temperature distribution; Ultrasonic variables measurement; Velocity measurement;
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.2008.0551
