Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
METHOD FOR MANUFACTURING PIEZOELECTRIC MATERIAL, PIEZOELECTRIC DEVICE, LIQUID INJECTION HEAD, LIQUID INJECTION APPARATUS, ULTRASONIC WAVE SENSOR, PIEZOELECTRIC MOTOR AND POWER GENERATOR
PROBLEM TO BE SOLVED: To provide a piezoelectric material which enables the reduction in the environmental load, and the achievement of high piezoelectric and dielectric characteristics in a wide range of use environment temperatures, and has a high Curie temperature, and a piezoelectric device, a liquid injection head, a liquid injection apparatus, an ultrasonic wave sensor a piezoelectric motor and a power generator which are arranged by use of such a piezoelectric material.SOLUTION: A piezoelectric material comprises: a first component consisting of a complex oxide having a perovskite type structure taking a form of rhombohedral crystal in a single composition and having a Curie temperature Tc1; a second component consisting of a complex oxide having a perovskite type structure taking a form of crystal other than rhombohedral crystal in a single composition and having a Curie temperature Tc2; and a third component consisting of a complex oxide having a perovskite type structure taking, in a single composition, a form of rhombohedral crystal different from that of the first component and having a Curie temperature Tc3. In the piezoelectric material, the Curie temperature Tc2 is higher than Tc1, and the Curie temperature Tc3 is equal to or higher than Tc2; and the value of (0.1×Tc1+0.9×Tc2) is 280°C or below.
【課題】環境負荷を低減し、広い使用環境温度範囲で圧電特性、誘電特性が高く、また、キュリー温度が高い圧電材料、並びにこれを用いた圧電素子、液体噴射ヘッド、液体噴射装置、超音波センサー、圧電モーター及び発電装置を提供する。【解決手段】単独組成では菱面体晶であり且つキュリー温度がＴｃ１であるペロブスカイト型構造を有する複合酸化物からなる第１成分と、単独組成では菱面体晶以外の結晶であり且つキュリー温度がＴｃ２であるペロブスカイト型構造を有する複合酸化物からなる第２成分と、単独組成では菱面体晶であるが第１成分とは異なり且つキュリー温度がＴｃ３であるペロブスカイト型構造を有する複合酸化物からなる第３成分とを含有し、Ｔｃ２はＴｃ１より高く、Ｔｃ３はＴｃ２以上であり、（０．１?Ｔｃ１＋０．９?Ｔｃ２）の値が２８０℃以下である。【選択図】図１
METHOD FOR MANUFACTURING PIEZOELECTRIC MATERIAL, PIEZOELECTRIC DEVICE, LIQUID INJECTION HEAD, LIQUID INJECTION APPARATUS, ULTRASONIC WAVE SENSOR, PIEZOELECTRIC MOTOR AND POWER GENERATOR
PROBLEM TO BE SOLVED: To provide a piezoelectric material which enables the reduction in the environmental load, and the achievement of high piezoelectric and dielectric characteristics in a wide range of use environment temperatures, and has a high Curie temperature, and a piezoelectric device, a liquid injection head, a liquid injection apparatus, an ultrasonic wave sensor a piezoelectric motor and a power generator which are arranged by use of such a piezoelectric material.SOLUTION: A piezoelectric material comprises: a first component consisting of a complex oxide having a perovskite type structure taking a form of rhombohedral crystal in a single composition and having a Curie temperature Tc1; a second component consisting of a complex oxide having a perovskite type structure taking a form of crystal other than rhombohedral crystal in a single composition and having a Curie temperature Tc2; and a third component consisting of a complex oxide having a perovskite type structure taking, in a single composition, a form of rhombohedral crystal different from that of the first component and having a Curie temperature Tc3. In the piezoelectric material, the Curie temperature Tc2 is higher than Tc1, and the Curie temperature Tc3 is equal to or higher than Tc2; and the value of (0.1×Tc1+0.9×Tc2) is 280°C or below.
【課題】環境負荷を低減し、広い使用環境温度範囲で圧電特性、誘電特性が高く、また、キュリー温度が高い圧電材料、並びにこれを用いた圧電素子、液体噴射ヘッド、液体噴射装置、超音波センサー、圧電モーター及び発電装置を提供する。【解決手段】単独組成では菱面体晶であり且つキュリー温度がＴｃ１であるペロブスカイト型構造を有する複合酸化物からなる第１成分と、単独組成では菱面体晶以外の結晶であり且つキュリー温度がＴｃ２であるペロブスカイト型構造を有する複合酸化物からなる第２成分と、単独組成では菱面体晶であるが第１成分とは異なり且つキュリー温度がＴｃ３であるペロブスカイト型構造を有する複合酸化物からなる第３成分とを含有し、Ｔｃ２はＴｃ１より高く、Ｔｃ３はＴｃ２以上であり、（０．１?Ｔｃ１＋０．９?Ｔｃ２）の値が２８０℃以下である。【選択図】図１
METHOD FOR MANUFACTURING PIEZOELECTRIC MATERIAL, PIEZOELECTRIC DEVICE, LIQUID INJECTION HEAD, LIQUID INJECTION APPARATUS, ULTRASONIC WAVE SENSOR, PIEZOELECTRIC MOTOR AND POWER GENERATOR
圧電材料の製造方法、圧電素子、液体噴射ヘッド、液体噴射装置、超音波センサー、圧電モーター及び発電装置
SUMI KOJI (Autor:in) / KITADA KAZUYA (Autor:in) / SAKAI TOMOHIRO (Autor:in) / HAMADA YASUAKI (Autor:in) / ISSHIKI TETSUYA (Autor:in) / KIMURA SATOSHI (Autor:in) / ITO AKIO (Autor:in) / HANDA TSUNEO (Autor:in)
18.06.2015
Patent
Elektronische Ressource
Japanisch
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