Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Piezoelectric material, piezoelectric element, and electronic device
There is provided a piezoelectric material not containing any lead component, having stable piezoelectric characteristics in an operating temperature range, a high mechanical quality factor, and satisfactory piezoelectric characteristics. The piezoelectric material according to the present invention includes a main component containing a perovskite-type metal oxide that can be expressed using the following general formula (1), and subcomponents containing Mn, Li, and Bi. When the metal oxide is 100 parts by weight, the content of Mn on a metal basis is not less than 0.04 parts by weight and is not greater than 0.36 parts by weight, content ± of Li on a metal basis is equal to or less than 0.0012 parts by weight (including 0 parts by weight), and content ² of Bi on a metal basis is not less than 0.042 parts by weight and is not greater than 0.850 parts by weight (Ba 1-x Ca x ) a (Ti 1-y-z Zr y Sn z )O 3 (1) (in the formula (1), 0.09 ¤ x ¤ 0.30, 0.025 ¤ y ¤ 0.085, 0 ¤ z ¤ 0.02, and 0.986 ¤ a ¤ 1.02).
Piezoelectric material, piezoelectric element, and electronic device
There is provided a piezoelectric material not containing any lead component, having stable piezoelectric characteristics in an operating temperature range, a high mechanical quality factor, and satisfactory piezoelectric characteristics. The piezoelectric material according to the present invention includes a main component containing a perovskite-type metal oxide that can be expressed using the following general formula (1), and subcomponents containing Mn, Li, and Bi. When the metal oxide is 100 parts by weight, the content of Mn on a metal basis is not less than 0.04 parts by weight and is not greater than 0.36 parts by weight, content ± of Li on a metal basis is equal to or less than 0.0012 parts by weight (including 0 parts by weight), and content ² of Bi on a metal basis is not less than 0.042 parts by weight and is not greater than 0.850 parts by weight (Ba 1-x Ca x ) a (Ti 1-y-z Zr y Sn z )O 3 (1) (in the formula (1), 0.09 ¤ x ¤ 0.30, 0.025 ¤ y ¤ 0.085, 0 ¤ z ¤ 0.02, and 0.986 ¤ a ¤ 1.02).
Piezoelectric material, piezoelectric element, and electronic device
Piezoelektrisches Material, piezoelektrisches Element und elektronische Vorrichtung
Matériau piézoélectrique, élément piézoélectrique et dispositif électronique
TANAKA HIDENORI (Autor:in) / WATANABE TAKAYUKI (Autor:in) / MURAKAMI SHUNSUKE (Autor:in) / FURUTA TATSUO (Autor:in) / YABUTA HISATO (Autor:in)
10.04.2019
Patent
Elektronische Ressource
Englisch
PIEZOELECTRIC MATERIAL, PIEZOELECTRIC ELEMENT, AND ELECTRONIC DEVICE
| Europäisches Patentamt | 2017
Piezoelectric material, piezoelectric element, and electronic device
| Europäisches Patentamt | 2016
PIEZOELECTRIC MATERIAL, PIEZOELECTRIC ELEMENT, AND ELECTRONIC DEVICE
| Europäisches Patentamt | 2016
Piezoelectric material, piezoelectric element, and electronic device
| Europäisches Patentamt | 2015
PIEZOELECTRIC MATERIAL, PIEZOELECTRIC ELEMENT, AND ELECTRONIC DEVICE
| Europäisches Patentamt | 2019