Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
PIEZOELECTRIC CERAMIC, AND PIEZOELECTRIC, DIELECTRIC, AND PYROELECTRIC ELEMENTS USING THE PIEZOELECTRIC CERAMIC
A piezoelectric solid solution composition containing, as a main component, a composition represented by the following general formula: {M x (Na y Li z K 1-y-z ) 1-x } 1-m {(Ti 1-u-v Zr u Hf v ) x (Nb 1-w Ta w ) 1-x }O 3 is disclosed. In the formula, M represents a combination of at least one member selected from the group consisting of (Bi 0.5 K 0.5 ), (Bi 0.5 Na 0.5 ) and (Bi 0.5 Li 0.5 ) and at least one member selected from the group consisting of Ba, Sr, Ca and Mg; and in the formula, x, y, z, u, v, w and m are in the following ranges: 0.06 < x ¤ 0.3, 0 ¤ y ¤ 1, 0 ¤ z ¤ 0.3, 0 ¤ (y + z) ¤ 1, 0 < u ¤ 1, 0 ¤ v ¤ 0.75, 0 ¤ w ¤ 0.2, 0 < (u + v) ¤ 1 and -0.06 ¤ m ¤ 0.06. This solid solution composition is a novel solid solution composition composed mainly of (Na,K)NbO 3 , which preferably forms the same rhombohedral-tetragonal morphotropic phase boundary as in PZT and is environmentally friendly. This displays an excellent piezoelectric constant d 33 , and thus, it can be utilized as an actuator for ultrasonic vibrators, ultrasonic motors, precise positioning elements, piezoelectric transformers or the like and also as a vibration control actuator for airplanes, automobiles, railway vehicles, ships or the like or as a vibration-proof actuator for civil engineering and construction buildings.
PIEZOELECTRIC CERAMIC, AND PIEZOELECTRIC, DIELECTRIC, AND PYROELECTRIC ELEMENTS USING THE PIEZOELECTRIC CERAMIC
A piezoelectric solid solution composition containing, as a main component, a composition represented by the following general formula: {M x (Na y Li z K 1-y-z ) 1-x } 1-m {(Ti 1-u-v Zr u Hf v ) x (Nb 1-w Ta w ) 1-x }O 3 is disclosed. In the formula, M represents a combination of at least one member selected from the group consisting of (Bi 0.5 K 0.5 ), (Bi 0.5 Na 0.5 ) and (Bi 0.5 Li 0.5 ) and at least one member selected from the group consisting of Ba, Sr, Ca and Mg; and in the formula, x, y, z, u, v, w and m are in the following ranges: 0.06 < x ¤ 0.3, 0 ¤ y ¤ 1, 0 ¤ z ¤ 0.3, 0 ¤ (y + z) ¤ 1, 0 < u ¤ 1, 0 ¤ v ¤ 0.75, 0 ¤ w ¤ 0.2, 0 < (u + v) ¤ 1 and -0.06 ¤ m ¤ 0.06. This solid solution composition is a novel solid solution composition composed mainly of (Na,K)NbO 3 , which preferably forms the same rhombohedral-tetragonal morphotropic phase boundary as in PZT and is environmentally friendly. This displays an excellent piezoelectric constant d 33 , and thus, it can be utilized as an actuator for ultrasonic vibrators, ultrasonic motors, precise positioning elements, piezoelectric transformers or the like and also as a vibration control actuator for airplanes, automobiles, railway vehicles, ships or the like or as a vibration-proof actuator for civil engineering and construction buildings.
PIEZOELECTRIC CERAMIC, AND PIEZOELECTRIC, DIELECTRIC, AND PYROELECTRIC ELEMENTS USING THE PIEZOELECTRIC CERAMIC
PIEZOELEKTRISCHE KERAMIK UND PIEZOELEKTRISCHE, DIELEKTRISCHE UND PYROELEKTRISCHE ELEMENTE UNTER VERWENDUNG DER PIEZOELEKTRISCHEN KERAMIK
CÉRAMIQUE PIÉZOÉLECTRIQUE ET ÉLÉMENTS PIÉZOÉLECTRIQUES, DIÉLECTRIQUES ET PYROÉLECTRIQUES UTILISANT LA CÉRAMIQUE PIÉZOÉLECTRIQUE
WANG RUIPING (Autor:in) / BANDO HIROSHI (Autor:in)
17.04.2019
Patent
Elektronische Ressource
Englisch
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