PIEZOELECTRIC MATERIAL AND METHOD FOR MANUFACTURING PIEZOELECTRIC MATERIAL

PROBLEM TO BE SOLVED: To provide a piezoelectric material which makes LiKNaNbTaSbOa base material, is environmentally friendly, has excellent piezoelectric characteristics and improves denseness and moisture resistance, and has high reliability.SOLUTION: The piezoelectric material 1b which consists...

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Hauptverfasser:	MATSUO YOSHIO, AKAGISHI MASAHIKO, OBA YOSHINARI, KOBAYASHI RYOSUKE, MITSUDA MAKOTO
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE ELECTRICITY LIME, MAGNESIA METALLURGY REFRACTORIES SLAG TREATMENT OF NATURAL STONE
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Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a piezoelectric material which makes LiKNaNbTaSbOa base material, is environmentally friendly, has excellent piezoelectric characteristics and improves denseness and moisture resistance, and has high reliability.SOLUTION: The piezoelectric material 1b which consists of a sintered compact includes: a preform expressed by the general formula: LiKNaNbTaSbO(wherein 0≤x≤0.3, 0.1≤y≤0.7, 0.3≤a≤0.9, and 0≤b≤0.2) and a glass as base components. The piezoelectric material 1b has a structure such that a compound which includes K, Na, Nb in the components of the preform, and is expressed by the general formula: KNaNbOis made a nuclear body 10b, and the nuclear body is covered by a coating film body 12b which consists of components other than components which compose the KNN compound in the base components.