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US 9,318,690 B2Granted
Piezoelectric element, liquid ejecting head, and liquid ejecting apparatus
AssigneeSeiko Epson Corporation
InventorXiaoxing Wang
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Abstract
A piezoelectric element is provided. The piezoelectric element includes a piezoelectric layer made of a perovskite compound containing sodium, potassium, lithium, niobium and tantalum and bismuth manganate. The piezoelectric element may also include electrodes for applying a voltage to the piezoelectric layer. The piezoelectric layer may contain 0.25 to 1 mol % of bismuth manganate relative to the perovskite ceramics.
Claims8
A piezoelectric element comprising:
- a piezoelectric layer made of a perovskite compound containing sodium, potassium, lithium, niobium, tantalum, and bismuth manganate;
- and
- electrodes for applying a voltage to the piezoelectric layer,
- wherein the piezoelectric layer contains 0.25 to 1 mol % of bismuth manganate relative to the perovskite compound.
1 more element
A piezoelectric element comprising:
- a piezoelectric layer comprising:
- ((Kx,Nay,Li1−x−y)(Nbz,Ta1−z)O3)−(m[BiMnO3]);
- and
- electrodes for applying a voltage to the piezoelectric layer,
- wherein 0.420 is less than or equal to x which is less than or equal to 0.480, 0.475 is less than or equal to y which is less than or equal to 0.520, 0.80 is less than or equal to z which is less than or equal to 0.85, 0.0025 is less than or equal to m which is less than or equal to 0.01.
2 more elements
Dependencies are inferred from the claim text.