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

We have successfully grown high quality piezoelectric single crystals of Sr 3 NbGa 3 Si 2 O 14 (SNGS), Sr 3 TaGa 3 Si 2 O 14 (STGS) and GdCa 4 O(BO 3 ) 3 (GdCOB) by the Czochralski technique. Dielectric, elastic and piezoelectric constants of SNGS and STGS were measured in a temperature range from 2...

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Published inProceedings of ISAF-ECAPD-PFM 2012 pp. 1 - 3
Main Authors Sotnikov, A., Schmidt, H., Weihnacht, M., Hengst, M., Mockel, R., Gotze, J., Heide, G.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.07.2012
Subjects
Crystals
dielectric
Dielectric measurements
elastic
piezoelectric properties
pizoelectric single crystals
Temperature dependence
Temperature distribution
Temperature measurement
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Summary:We have successfully grown high quality piezoelectric single crystals of Sr 3 NbGa 3 Si 2 O 14 (SNGS), Sr 3 TaGa 3 Si 2 O 14 (STGS) and GdCa 4 O(BO 3 ) 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.
ISBN:1467326682
9781467326681
ISSN:1099-4734
2375-0448
DOI:10.1109/ISAF.2012.6297781