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US08998390B2 Piezoelectric film, ink jet head, method of forming image by the ink jet head, angular velocity sensor, method of measuring angular velocity by the angular velocity sensor, piezoelectric generating element, and method of generating electric power using the piezoelectric generating element 有权
压电膜，喷墨头，通过喷墨头形成图像的方法，角速度传感器，角速度传感器测量角速度的方法，压电发生元件以及使用压电发生元件产生电力的方法

Piezoelectric film, ink jet head, method of forming image by the ink jet head, angular velocity sensor, method of measuring angular velocity by the angular velocity sensor, piezoelectric generating element, and method of generating electric power using the piezoelectric generating element
Abstract:
Provided is an NBT-BT lead-free piezoelectric film having a high crystalline orientation and a high piezoelectric constant. The present invention is a piezoelectric film comprising a NaxM1-x layer and a (Bi, Na)TiO3—BaTiO3 layer. The (Bi, Na) TiO3—BaTiO3 layer is formed on the NaxM1-x layer, where M represents Pt, Ir, or PtIr and x represents a value of not less than 0.002 and not more than 0.02. Both of the NaxM1-x layer and the (Bi, Na) TiO3—BaTiO3 layer have a (001) orientation only, a (110) orientation only, or a (111) orientation only.
Abstract(Chinese):

提供了具有高结晶取向和高压电常数的NBT-BT无铅压电膜。 本发明是一种包含NaxM1-x层和（Bi，Na）TiO3-BaTiO3层的压电膜。 （Bi，Na）TiO3-BaTiO3层形成在NaxM1-x层上，其中M表示Pt，Ir或PtIr，x表示不小于0.002且不大于0.02的值。 NaxM1-x层和（Bi，Na）TiO3-BaTiO3层仅具有（001）取向，仅具有（110）取向或（111）取向。

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