Piezoelektrisches Material, piezoelektrisches Element, Flüssigkeitsausstoßkopf, Flüssigkeitsausstoßvorrichtung, Ultraschallsensor, piezoelektrischer Motor und Stromgenerator

Details

Veröffentlichungs-Nr.

EP2819195

Aktenzeichen

EP14161857

Anmeldetag

26. März 2014

Veröffentlichung

26. August 2015

Rechtsraum

EP

IPC

H01L41/187C04B35/475C04B35/495B41J2/14

Abstract

A piezoelectric material contains a first component that is a rhombohedral crystal that is configured to have a complex oxide with a perovskite structure and Curie temperature is set to be Tc1 and a second component that is a crystal other than a rhombohedral crystal that is configured to have a complex oxide with the perovskite structure and Curie temperature is set to be Tc2, in which the absolute value of the difference between Tc1 and Tc2 |Tc1-Tc2| is equal to or lower than 50°C, and a composition near an MPB line is provided in a phase diagram that employs a composition ratio of a first component to a second component for the horizontal axis and temperature for the vertical axis.

Anmelder

Firma

Seiko Epson Corporation

Land

🇯🇵 Japan

Fachgebiete