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A platform for research: civil engineering, architecture and urbanism
PIEZOELECTRIC MATERIAL, PIEZOELECTRIC ELEMENT AND ELECTRONIC APPARATUS
To provide a non-lead type piezoelectric material using sodium niobate excellent in piezoelectric constant and curie temperature as a main component.SOLUTION: The piezoelectric material includes an oxide including Na, Ba, Nb, Ti and Mn. The oxide has a perovskite structure; the total content of metal elements except Na, Ba, Nb, Ti and Mn included in the piezoelectric material is 0.5 mol% or less to that of Na, Ba, Nb, Ti and Mn; a molar ratio x of Ti to the total molar amount of Nb and Ti is 0.05≤x≤0.12; a molar ratio y of Na to Nb is 0.93≤y≤0.98; a molar ratio z of Ba to Ti is 1.09≤z≤1.60; a molar ratio m of Mn to the total molar amount of Nb and Ti is 0.0006≤m≤0.0030; and 1.07≤y×z≤1.50.SELECTED DRAWING: Figure 7
【課題】優れた圧電定数とキュリー温度を両立したニオブ酸ナトリウムを主成分とする非鉛型の圧電材料を提供する。【解決手段】Ｎａ、Ｂａ、Ｎｂ、Ｔｉ、Ｍｎを含む酸化物を含む圧電材料であって、前記酸化物はペロブスカイト型構造を有しており、前記圧電材料に含まれるＮａ、Ｂａ、Ｎｂ、Ｔｉ、Ｍｎ以外の金属元素の合計量は、Ｎａ、Ｂａ、Ｎｂ、Ｔｉ、Ｍｎの合計量に対して０．５モル％以下であり、ＮｂとＴｉの合計モル量に対するＴｉのモル比ｘは、０．０５≦ｘ≦０．１２であり、Ｎｂに対するＮａのモル比ｙは、０．９３≦ｙ≦０．９８であり、Ｔｉに対するＢａのモル比ｚは、１．０９≦ｚ≦１．６０であり、ＮｂとＴｉの合計モル量に対するＭｎのモル比ｍは０．０００６≦ｍ≦０．００３０であり、さらに１．０７≦ｙ×ｚ≦１．５０である圧電材料。【選択図】図７
PIEZOELECTRIC MATERIAL, PIEZOELECTRIC ELEMENT AND ELECTRONIC APPARATUS
To provide a non-lead type piezoelectric material using sodium niobate excellent in piezoelectric constant and curie temperature as a main component.SOLUTION: The piezoelectric material includes an oxide including Na, Ba, Nb, Ti and Mn. The oxide has a perovskite structure; the total content of metal elements except Na, Ba, Nb, Ti and Mn included in the piezoelectric material is 0.5 mol% or less to that of Na, Ba, Nb, Ti and Mn; a molar ratio x of Ti to the total molar amount of Nb and Ti is 0.05≤x≤0.12; a molar ratio y of Na to Nb is 0.93≤y≤0.98; a molar ratio z of Ba to Ti is 1.09≤z≤1.60; a molar ratio m of Mn to the total molar amount of Nb and Ti is 0.0006≤m≤0.0030; and 1.07≤y×z≤1.50.SELECTED DRAWING: Figure 7
【課題】優れた圧電定数とキュリー温度を両立したニオブ酸ナトリウムを主成分とする非鉛型の圧電材料を提供する。【解決手段】Ｎａ、Ｂａ、Ｎｂ、Ｔｉ、Ｍｎを含む酸化物を含む圧電材料であって、前記酸化物はペロブスカイト型構造を有しており、前記圧電材料に含まれるＮａ、Ｂａ、Ｎｂ、Ｔｉ、Ｍｎ以外の金属元素の合計量は、Ｎａ、Ｂａ、Ｎｂ、Ｔｉ、Ｍｎの合計量に対して０．５モル％以下であり、ＮｂとＴｉの合計モル量に対するＴｉのモル比ｘは、０．０５≦ｘ≦０．１２であり、Ｎｂに対するＮａのモル比ｙは、０．９３≦ｙ≦０．９８であり、Ｔｉに対するＢａのモル比ｚは、１．０９≦ｚ≦１．６０であり、ＮｂとＴｉの合計モル量に対するＭｎのモル比ｍは０．０００６≦ｍ≦０．００３０であり、さらに１．０７≦ｙ×ｚ≦１．５０である圧電材料。【選択図】図７
PIEZOELECTRIC MATERIAL, PIEZOELECTRIC ELEMENT AND ELECTRONIC APPARATUS
圧電材料、圧電素子、および電子機器
KUBOTA JUN (author) / OSHIMA KANAKO (author) / YABUTA HISATO (author) / MATSUDA KATAYOSHI (author) / UEDA MIKI (author) / UCHIDA FUMIO (author) / IMAI HIROKI (author) / MAEDA KENJI (author) / SHIMIZU CHIEMI (author)
2019-02-28
Patent
Electronic Resource
Japanese
IPC:
H10N
/
B06B
GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
,
Erzeugen oder Übertragen mechanischer Schwingungen allgemein
/
B41J
TYPEWRITERS
,
Schreibmaschinen
/
C04B
Kalk
,
LIME
/
G02B
Optische Elemente, Systeme oder Geräte
,
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
/
H02N
Elektrische Maschinen, soweit nicht anderweitig vorgesehen
,
ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
/
H04N
PICTORIAL COMMUNICATION, e.g. TELEVISION
,
Bildübertragung, z.B. Fernsehen
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