Piezoelectric element and liquid ejecting head

Provided is a piezoelectric element including a first electrode provided above a substrate, a piezoelectric layer including a plurality of crystal grains containing potassium, sodium, and niobium and provided above the first electrode, and a second electrode provided above the piezoelectric layer. A...

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Bibliographic Details
Main Authors Koike, Harunobu, Morozumi, Koichi
Format Patent
LanguageEnglish
Published 19.04.2022
Subjects
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
CORRECTION OF TYPOGRAPHICAL ERRORS
ELECTRICITY
i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME
LIME, MAGNESIA
LINING MACHINES
METALLURGY
PERFORMING OPERATIONS
PRINTING
REFRACTORIES
SELECTIVE PRINTING MECHANISMS
SLAG
STAMPS
TRANSPORTING
TREATMENT OF NATURAL STONE
TYPEWRITERS
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Summary:Provided is a piezoelectric element including a first electrode provided above a substrate, a piezoelectric layer including a plurality of crystal grains containing potassium, sodium, and niobium and provided above the first electrode, and a second electrode provided above the piezoelectric layer. An atom concentration NK1 (atm %) of potassium contained in grain boundaries of the crystal grains and an atom concentration NK2 (atm %) of potassium contained in the crystal grains satisfy a relationship of 1.0<NK1/NK2≤2.4.
Bibliography:Application Number: US201916285664