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US 8,410,668 B2Granted
Crystal oriented ceramic composite body, and piezoelectric/electrostrictive element
AssigneeNGK Insulators, Ltd.
InventorsTakaaki Koizumi, Takuya Katsuno
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Abstract
A crystal oriented ceramic composite body is provided, including a substrate that has a first surface and a second surface, and a {100} oriented ceramic film that is disposed to face the first surface. The {100} oriented ceramic film includes a first sectional surface. The first sectional surface is perpendicular to the first surface, and a 90 degree domain includes a domain wall within a range of ±20 degrees of a normal to the first surface and occupies a surface area of at least ⅓ of the first sectional surface.
Claims9
A crystal oriented ceramic composite body comprising:
- a substrate that has a first surface and a second surface;
- and
- a {100} oriented ceramic film that is disposed to face the first surface;
- wherein the {100} oriented ceramic film includes a first sectional surface, the first sectional surface being a sectional surface that is perpendicular to the first surface;
- and
- wherein a 90 degree domain in the first sectional surface includes a domain wall within a range of ±20 degrees of a normal to the first surface and occupies a at least ⅓ of the first sectional surface.
3 more elements
Dependencies are inferred from the claim text.