A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PIEZOELECTRIC MATERIAL, PIEZOELECTRIC ELEMENT, AND ELECTRONIC DEVICE
To provide a lead-free piezoelectric material that exhibits good piezoelectric properties.SOLUTION: A piezoelectric material contains a perovskite-type metal oxide comprising Na, Nb, Ba, Ti, and Mg. When the proportions by number of Na atoms, Nb atoms, Ba atoms, Ti atoms, and Mg atoms among Na, Nb, Ba, Ti, and Mg atoms contained in the piezoelectric material are represented by a, b, c, d, and e, respectively, the proportions a, b, c, d, e by number satisfy the following relational expressions: 0.430≤a≤0.460; 0.433≤b≤0.479; 0.040≤c≤0.070; 0.0125≤d≤0.0650; 0.0015≤e≤0.0092; 0.9×3e≤c-d≤1.1×3e; and a+b+c+d+e=1.SELECTED DRAWING: Figure 1
【課題】良好な圧電特性を示す非鉛型の圧電材料を提供する。【解決手段】Ｎａ、Ｎｂ、Ｂａ、Ｔｉ、Ｍｇから成るペロブスカイト型金属酸化物を含む圧電材料であって、圧電材料に含有されるＮａ、Ｎｂ、Ｂａ、Ｔｉ、Ｍｇの各原子のうち、Ｎａ原子、Ｎｂ原子、Ｂａ原子、Ｔｉ原子、Ｍｇ原子が占める個数割合をそれぞれａ、ｂ、ｃ、ｄ、ｅとするとき、個数割合ａ、ｂ、ｃ、ｄ、ｅが、次の関係式を満たす圧電材料。０．４３０≦ａ≦０．４６０、０．４３３≦ｂ≦０．４７９、０．０４０≦ｃ≦０．０７０、０．０１２５≦ｄ≦０．０６５０、０．００１５≦ｅ≦０．００９２、０．９×３ｅ≦ｃ−ｄ≦１．１×３ｅ、ａ＋ｂ＋ｃ＋ｄ＋ｅ＝１【選択図】図１
PIEZOELECTRIC MATERIAL, PIEZOELECTRIC ELEMENT, AND ELECTRONIC DEVICE
To provide a lead-free piezoelectric material that exhibits good piezoelectric properties.SOLUTION: A piezoelectric material contains a perovskite-type metal oxide comprising Na, Nb, Ba, Ti, and Mg. When the proportions by number of Na atoms, Nb atoms, Ba atoms, Ti atoms, and Mg atoms among Na, Nb, Ba, Ti, and Mg atoms contained in the piezoelectric material are represented by a, b, c, d, and e, respectively, the proportions a, b, c, d, e by number satisfy the following relational expressions: 0.430≤a≤0.460; 0.433≤b≤0.479; 0.040≤c≤0.070; 0.0125≤d≤0.0650; 0.0015≤e≤0.0092; 0.9×3e≤c-d≤1.1×3e; and a+b+c+d+e=1.SELECTED DRAWING: Figure 1
【課題】良好な圧電特性を示す非鉛型の圧電材料を提供する。【解決手段】Ｎａ、Ｎｂ、Ｂａ、Ｔｉ、Ｍｇから成るペロブスカイト型金属酸化物を含む圧電材料であって、圧電材料に含有されるＮａ、Ｎｂ、Ｂａ、Ｔｉ、Ｍｇの各原子のうち、Ｎａ原子、Ｎｂ原子、Ｂａ原子、Ｔｉ原子、Ｍｇ原子が占める個数割合をそれぞれａ、ｂ、ｃ、ｄ、ｅとするとき、個数割合ａ、ｂ、ｃ、ｄ、ｅが、次の関係式を満たす圧電材料。０．４３０≦ａ≦０．４６０、０．４３３≦ｂ≦０．４７９、０．０４０≦ｃ≦０．０７０、０．０１２５≦ｄ≦０．０６５０、０．００１５≦ｅ≦０．００９２、０．９×３ｅ≦ｃ−ｄ≦１．１×３ｅ、ａ＋ｂ＋ｃ＋ｄ＋ｅ＝１【選択図】図１
PIEZOELECTRIC MATERIAL, PIEZOELECTRIC ELEMENT, AND ELECTRONIC DEVICE
圧電材料、圧電素子、および電子機器
MATSUDA KATAYOSHI (author) / KUBOTA JUN (author) / YABUTA HISATO (author) / UEDA MIKI (author) / OSHIMA KANAKO (author) / SHIMIZU KOJI (author) / UCHIDA FUMIO (author) / IMAI HIROKI (author) / MAEDA KENJI (author) / SHIMIZU CHIEMI (author)
2019-02-28
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
/
B41J
TYPEWRITERS
,
Schreibmaschinen
/
G02B
Optische Elemente, Systeme oder Geräte
,
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
/
G03B
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM
,
Geräte oder Anordnungen zum Aufnehmen, Projizieren oder Betrachten von Fotografien
/
H02N
Elektrische Maschinen, soweit nicht anderweitig vorgesehen
,
ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
/
H10N
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