New piezoelectric crystal: Synthetic fresnoite (Ba2Si2TiO8)
作者:
Masakazu Kimura,
Yoshio Fujino,
Tsutomu Kawamura,
期刊:
Applied Physics Letters
(AIP Available online 1976)
卷期:
Volume 29,
issue 4
页码: 227-228
ISSN:0003-6951
年代: 1976
DOI:10.1063/1.89045
出版商: AIP
数据来源: AIP
摘要:
A fresnoite (Ba2Si2TiO8) single crystal was grown from the melt by the Czochralski method. Synthetic fresnoite has an electromechanical coupling factor in the thickness shear mode ofk15=0.28, and a resonance‐frequency temperature coefficient in this mode ofTfr=−33 ppm/°C. Fresnoite is considered to be superior to Ba2Ge2TiO8for various piezoelectric applications because of the absence of microtwins observed in Ba2Ge2TiO8.
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