科研之友
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摘要
A single ring-shape ceramic plate piezoelectric actuator operated in shear-bending mode was proposed for high-temperature operation. The actuator was formed from BiScO3-PbTiO3 ceramic and polarized in the radial direction. A large bending displacement at the center of the actuator was piezoelectrically generated under an applied voltage in the thickness direction due to axial-symmetric shear strain of the ring-shape configuration. The displacement obtained at 200 degrees C was about 20 mu m, 11-14 times that of a normal piezoelectric plate of identical size.
- 出版日期2012-7-2
- 单位北京大学
