JP2007001838A - 圧電/電歪磁器組成物、圧電/電歪体、及び圧電/電歪膜型素子 - Google Patents
圧電/電歪磁器組成物、圧電/電歪体、及び圧電/電歪膜型素子 Download PDFInfo
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- JP2007001838A JP2007001838A JP2005186282A JP2005186282A JP2007001838A JP 2007001838 A JP2007001838 A JP 2007001838A JP 2005186282 A JP2005186282 A JP 2005186282A JP 2005186282 A JP2005186282 A JP 2005186282A JP 2007001838 A JP2007001838 A JP 2007001838A
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Abstract
【解決手段】主成分としてのPbMg1/3Nb2/3O3−PbTiO3−PbZrO3三成分固溶系組成物、及びNiO換算で0.05〜3.0質量%のNiを含有する、又は主成分としてのPb(Mg、Ni)1/3Nb2/3O3−PbTiO3−PbZrO3三成分固溶系組成物を含有するとともに、Mg2SiO4、Ni2SiO4、及び(Mg、Ni)2SiO4からなる群より選択される少なくとも一種を更に含有し、Mg2SiO4、Ni2SiO4、及び(Mg、Ni)2SiO4の合計の含有割合が、0.2mol%以下である圧電/電歪磁器組成物。
【選択図】なし
Description
Pbx(Mgy/3Nb2/3)aTibZrcO3 (1)
(上記式(1)中、0.95≦x≦1.05、0.8≦y≦1.0であり、かつa,b,cが、前記a,b,cの3つを座標軸とする座標中、(a,b,c)=(0.550,0.425,0.025)、(0.550,0.325,0.125)、(0.375,0.325,0.300)、(0.050,0.425,0.525)、(0.050,0.525,0.425)、(0.375,0.425,0.200)で囲まれる範囲の小数である(但し、a+b+c=1.000である))
Pbx{(Mg1-yNiy)(1/3)×aNb2/3}bTicZrdO3 (2)
(上記式(2)中、0.95≦x≦1.05、0.05≦y≦1.00、0.90≦a≦1.10であり、かつb,c,dが、前記b,c,dを座標軸とする座標中、(b,c,d)=(0.550,0.425,0.025)、(0.550,0.325,0.125)、(0.375,0.325,0.300)、(0.050,0.425,0.525)、(0.050,0.525,0.425)、(0.375,0.425,0.200)で囲まれる範囲の小数である(但し、(b+c+d)=1.000である))
Pbx(Mgy/3Nb2/3)aTibZrcO3 (1)
(上記式(1)中、0.95≦x≦1.05、0.8≦y≦1.0であり、かつa,b,cが、前記a,b,cの3つを座標軸とする座標中、(a,b,c)=(0.550,0.425,0.025)、(0.550,0.325,0.125)、(0.375,0.325,0.300)、(0.050,0.425,0.525)、(0.050,0.525,0.425)、(0.375,0.425,0.200)で囲まれる範囲の小数である(但し、a+b+c=1.000である))
Pbx{(Mg1-yNiy)(1/3)×aNb2/3}bTicZrdO3 (2)
(上記式(2)中、0.95≦x≦1.05、0.05≦y≦1.00、0.90≦a≦1.10であり、かつb,c,dが、前記b,c,dを座標軸とする座標中、(b,c,d)=(0.550,0.425,0.025)、(0.550,0.325,0.125)、(0.375,0.325,0.300)、(0.050,0.425,0.525)、(0.050,0.525,0.425)、(0.375,0.425,0.200)で囲まれる範囲の小数である(但し、(b+c+d)=1.000である))
(1):主成分としてのPbMg1/3Nb2/3O3−PbTiO3−PbZrO3三成分固溶系組成物、及びNiO換算で0.05〜3.0質量%のNiを含有するとともに、Mg2SiO4、Ni2SiO4、及び(Mg、Ni)2SiO4からなる群より選択される少なくとも一種を更に含有し、前記Mg2SiO4、前記Ni2SiO4、及び前記(Mg、Ni)2SiO4の合計の含有割合が、0.2mol%以下である圧電/電歪体。
(2):主成分としてのPb(Mg、Ni)1/3Nb2/3O3−PbTiO3−PbZrO3三成分固溶系組成物を含有するとともに、Mg2SiO4、Ni2SiO4、及び(Mg、Ni)2SiO4からなる群より選択される少なくとも一種を更に含有し、前記Mg2SiO4、前記Ni2SiO4、及び前記(Mg、Ni)2SiO4の合計の含有割合が、0.2mol%以下である圧電/電歪体。
Pbx(Mgy/3Nb2/3)aTibZrcO3 (1)
(上記式(1)中、0.95≦x≦1.05、0.8≦y≦1.0であり、かつa,b,cが、前記a,b,cの3つを座標軸とする座標中、(a,b,c)=(0.550,0.425,0.025)、(0.550,0.325,0.125)、(0.375,0.325,0.300)、(0.050,0.425,0.525)、(0.050,0.525,0.425)、(0.375,0.425,0.200)で囲まれる範囲の小数である(但し、a+b+c=1.000である))
Pbx{(Mg1-yNiy)(1/3)×aNb2/3}bTicZrdO3 (2)
(上記式(2)中、0.95≦x≦1.05、0.05≦y≦1.00、0.90≦a≦1.10であり、かつb,c,dが、前記b,c,dを座標軸とする座標中、(b,c,d)=(0.550,0.425,0.025)、(0.550,0.325,0.125)、(0.375,0.325,0.300)、(0.050,0.425,0.525)、(0.050,0.525,0.425)、(0.375,0.425,0.200)で囲まれる範囲の小数である(但し、(b+c+d)=1.000である))
Pbx(Mgy/3Nb2/3)aTibZrcO3 (1)
(上記式(1)中、0.95≦x≦1.05、0.8≦y≦1.0であり、かつa,b,cが、前記a,b,cの3つを座標軸とする座標中、(a,b,c)=(0.550,0.425,0.025)、(0.550,0.325,0.125)、(0.375,0.325,0.300)、(0.050,0.425,0.525)、(0.050,0.525,0.425)、(0.375,0.425,0.200)で囲まれる範囲の小数である(但し、a+b+c=1.000である))
Pbx{(Mg1-yNiy)(1/3)×aNb2/3}bTicZrdO3 (2)
(上記式(2)中、0.95≦x≦1.05、0.05≦y≦1.00、0.90≦a≦1.10であり、かつb,c,dが、前記b,c,dを座標軸とする座標中、(b,c,d)=(0.550,0.425,0.025)、(0.550,0.325,0.125)、(0.375,0.325,0.300)、(0.050,0.425,0.525)、(0.050,0.525,0.425)、(0.375,0.425,0.200)で囲まれる範囲の小数である(但し、(b+c+d)=1.000である))
Pbx(Mgy/3Nb2/3)aTibZrcO3 (1)
(上記式(1)中、0.95≦x≦1.05、0.8≦y≦1.0であり、かつa,b,cが、前記a,b,cの3つを座標軸とする座標中、(a,b,c)=(0.550,0.425,0.025)、(0.550,0.325,0.125)、(0.375,0.325,0.300)、(0.050,0.425,0.525)、(0.050,0.525,0.425)、(0.375,0.425,0.200)で囲まれる範囲の小数である(但し、a+b+c=1.000である))
Pbx{(Mg1-yNiy)(1/3)×aNb2/3}bTicZrdO3 (2)
(上記式(2)中、0.95≦x≦1.05、0.05≦y≦1.00、0.90≦a≦1.10であり、かつb,c,dが、前記b,c,dを座標軸とする座標中、(b,c,d)=(0.550,0.425,0.025)、(0.550,0.325,0.125)、(0.375,0.325,0.300)、(0.050,0.425,0.525)、(0.050,0.525,0.425)、(0.375,0.425,0.200)で囲まれる範囲の小数である(但し、(b+c+d)=1.000である))
(1):主成分としてのPbMg1/3Nb2/3O3−PbTiO3−PbZrO3三成分固溶系組成物、及びNiO換算で0.05〜3.0質量%のNiを含有するとともに、Mg2SiO4、Ni2SiO4、及び(Mg、Ni)2SiO4からなる群より選択される少なくとも一種を更に含有し、Mg2SiO4、Ni2SiO4、及び(Mg、Ni)2SiO4の合計の含有割合が、0.2mol%以下である圧電/電歪体。
(2):主成分としてのPb(Mg、Ni)1/3Nb2/3O3−PbTiO3−PbZrO3三成分固溶系組成物を含有するとともに、Mg2SiO4、Ni2SiO4、及び(Mg、Ni)2SiO4からなる群より選択される少なくとも一種を更に含有し、Mg2SiO4、Ni2SiO4、及び(Mg、Ni)2SiO4の合計の含有割合が、0.2mol%以下である圧電/電歪体。
Pbx(Mgy/3Nb2/3)aTibZrcO3 (1)
(上記式(1)中、0.95≦x≦1.05、0.8≦y≦1.0であり、かつa,b,cが、前記a,b,cの3つを座標軸とする座標中、(a,b,c)=(0.550,0.425,0.025)、(0.550,0.325,0.125)、(0.375,0.325,0.300)、(0.050,0.425,0.525)、(0.050,0.525,0.425)、(0.375,0.425,0.200)で囲まれる範囲の小数である(但し、a+b+c=1.000である))
Pbx{(Mg1-yNiy)(1/3)×aNb2/3}bTicZrdO3 (2)
(上記式(2)中、0.95≦x≦1.05、0.05≦y≦1.00、0.90≦a≦1.10であり、かつb,c,dが、前記b,c,dを座標軸とする座標中、(b,c,d)=(0.550,0.425,0.025)、(0.550,0.325,0.125)、(0.375,0.325,0.300)、(0.050,0.425,0.525)、(0.050,0.525,0.425)、(0.375,0.425,0.200)で囲まれる範囲の小数である(但し、(b+c+d)=1.000である))
その組成が、Pb(Mg1/3Nb2/3)0.12Ti0.45Zr0.43O3で表される三成分固溶系組成物を主成分として含有するとともに、Niを1.0質量%(NiO換算)含有する圧電/電歪磁器組成物の粉末を調製した。なお、調製に際しては、原材料にSiO2を添加し、Siをそれぞれ異なる割合で含有する(0.003、0.011、0.019、及び0.041質量%(SiO2換算))圧電/電歪磁器組成物の粉末とした。これらの粉末を、それぞれ0.5t/cm2の圧力で直径20mm×厚み6mmの大きさに圧粉成形し、マグネシア容器内で1200℃で3時間焼成することによって焼結体を作製した。作製した焼結体を、12mm×3mm×1mmの大きさに加工した後、12mm×3mmサイズの両面に銀ペーストを塗布して電極を焼きつけた。次いで、70℃のシリコンオイル中に浸漬し、電極間に2kV/mmの直流電圧を15分間印加することにより分極して、試料であるバルク体(圧電/電歪体)(実施例1〜3、比較例1)を得た。得られたバルク体の各種物性値の測定結果を表1に示す。なお、表1中、「歪量(%)」については、実施例1のバルク体の歪量を100とした場合における相対値(%)で表記した。
Y2O3で安定化された、薄肉部が平坦なZrO2基体(薄肉部の寸法:1.6×1.1mm、厚さ:10μm)上に、白金からなる下部電極(寸法:1.2×0.8mm、厚さ:3μm)をスクリーン印刷法により形成し、1300℃、2時間の熱処理により基体と一体化させた。次いで、その上に、前述の「実施例1〜3、比較例1」で用いた、Si含有割合の異なる圧電/電歪磁器組成物を、スクリーン印刷法により、寸法1.3×0.9mm、厚さ10μmでそれぞれ積層した。次いで、その上に、白金からなる内部電極(寸法:1.0×1.1mm、厚さ:3μm)をスクリーン印刷法によりそれぞれ積層した。更に、その上に、前述の圧電/電歪磁器組成物を、スクリーン印刷法により、寸法1.3×0.9mm、厚さ10μmでそれぞれ積層した。次いで、圧電/電歪磁器組成物と同一組成の雰囲気制御用材料を、雰囲気単位体積当たりのNiO換算量で0.15mg/cm3容器内に共存させ、1275℃、2時間熱処理した。熱処理後の圧電/電歪体の厚さは、いずれも7μmであった。最後に、その上に、金からなる上部電極(寸法:1.2×0.8mm、厚さ:0.5μm)をスクリーン印刷法により形成した後、熱処理して、膜状に形成された二層の圧電/電歪体(圧電/電歪膜)を有する圧電/電歪膜型素子(実施例4〜6、比較例2)を製造した。得られた圧電/電歪膜型素子の各種物性値の測定結果を表2に示す。なお、表2中、「屈曲変位量(%)」については、実施例4の圧電/電歪膜型素子の屈曲変位量を100とした場合における相対値(%)で表記した。
その組成が、Pb{(Mg0.87Ni0.13)1/3Nb2/3}0.12Ti0.45Zr0.43O3で表される三成分固溶系組成物を主成分として含有する圧電/電歪磁器組成物の粉末を調製した。なお、調製に際しては、原材料にSiO2を添加し、Siをそれぞれ異なる割合で含有する(0.005、0.013、0.022、及び0.043質量%(SiO2換算))圧電/電歪磁器組成物の粉末とした。これらの粉末を、それぞれ0.5t/cm2の圧力で直径20mm×厚み6mmの大きさに圧粉成形し、マグネシア容器内で1200℃で3時間焼成することによって焼結体を作製した。作製した焼結体を、12mm×3mm×1mmの大きさに加工した後、12mm×3mmサイズの両面に銀ペーストを塗布して電極を焼きつけた。次いで、70℃のシリコンオイル中に浸漬し、電極間に2kV/mmの直流電圧を15分間印加することにより分極して、試料であるバルク体(圧電/電歪体)(実施例7〜9、比較例3)を得た。得られたバルク体の各種物性値の測定結果を表3に示す。なお、表3中、「歪量(%)」については、実施例1のバルク体の歪量を100とした場合における相対値(%)で表記した。
Y2O3で安定化された、薄肉部が平坦なZrO2基体(薄肉部の寸法:1.6×1.1mm、厚さ:10μm)上に、白金からなる下部電極(寸法:1.2×0.8mm、厚さ:3μm)をスクリーン印刷法により形成し、1300℃、2時間の熱処理により基体と一体化させた。次いで、その上に、前述の「実施例7〜9、比較例3」で用いた、Si含有割合の異なる圧電/電歪磁器組成物を、スクリーン印刷法により、寸法1.3×0.9mm、厚さ10μmでそれぞれ積層した。次いで、その上に、白金からなる内部電極(寸法:1.0×1.1mm、厚さ:3μm)をスクリーン印刷法によりそれぞれ積層した。更に、その上に、前述の圧電/電歪磁器組成物を、スクリーン印刷法により、寸法1.3×0.9mm、厚さ10μmでそれぞれ積層した。次いで、圧電/電歪磁器組成物と同一組成の雰囲気制御用材料を、雰囲気単位体積当たりのNiO換算量で0.15mg/cm3容器内に共存させ、1275℃、2時間熱処理した。熱処理後の圧電/電歪体の厚さは、いずれも7μmであった。最後に、その上に、金からなる上部電極(寸法:1.2×0.8mm、厚さ:0.5μm)をスクリーン印刷法により形成した後、熱処理して、膜状に形成された二層の圧電/電歪体(圧電/電歪膜)を有する圧電/電歪膜型素子(実施例10〜12、比較例4)を製造した。得られた圧電/電歪膜型素子の各種物性値の測定結果を表4に示す。なお、表4中、「屈曲変位量(%)」については、実施例4の圧電/電歪膜型素子の屈曲変位量を100とした場合における相対値(%)で表記した。
Y2O3で安定化された、薄肉部が平坦なZrO2基体(薄肉部の寸法:1.6×1.1mm、厚さ:10μm)上に、白金からなる下部電極(寸法:1.2×0.8mm、厚さ:3μm)をスクリーン印刷法により形成し、1300℃、2時間の熱処理により基体と一体化させた。次いで、その上に、その組成が、Pb{(Mg0.87Ni0.13)1/3Nb2/3}0.12Ti0.45Zr0.43O3で表される三成分固溶系組成物を主成分として含有するとともに、Siを0.007質量%(SiO2換算)含有する圧電/電歪磁器組成物を、スクリーン印刷法により、寸法1.3×0.9mm、厚さ10μmで積層した。次いで、その上に、白金からなる内部電極(寸法:1.0×1.1mm、厚さ:3μm)をスクリーン印刷法により積層した。
(1)下層に、その組成が、Pb{(Mg0.87Ni0.13)1/3Nb2/3}0.12Ti0.45Zr0.43O3で表される三成分固溶系組成物を主成分として含有するとともに、Siを0.043質量%(SiO2換算)含有する圧電/電歪磁器組成物を積層したこと、及び、(2)上層に、その組成が、Pb(Mg1/3Nb2/3)0.12Ti0.45Zr0.43O3で表される三成分固溶系組成物を主成分として含有するとともに、Niを1.0質量%(NiO換算)、及びSiを0.009質量%(SiO2換算)含有する圧電/電歪磁器組成物を積層したこと以外は、前述の実施例13と同様にして、膜状に形成された二層の圧電/電歪体(圧電/電歪膜)を有する圧電/電歪膜型素子(比較例5)を製造した。
1a 固着面
1b 厚肉部
1c 薄肉部
2,2a,2b,2c,3,3a,3b,3c 圧電/電歪体
4,5,6,14,16 電極
10,10a,10b,10c 圧電/電歪素子単位
12 第一の圧電/電歪体
13 第二の圧電/電歪体
15 最下圧電/電歪体
20 共通基体
51 第一の圧電/電歪膜型素子
53 第二の圧電/電歪膜型素子
P 下部電極の幅
Q 中間電極の幅
R 上部電極の幅
Claims (12)
- 主成分としてのPbMg1/3Nb2/3O3−PbTiO3−PbZrO3三成分固溶系組成物、及びNiO換算で0.05〜3.0質量%のNiを含有する、又は
主成分としてのPb(Mg、Ni)1/3Nb2/3O3−PbTiO3−PbZrO3三成分固溶系組成物を含有するとともに、
Mg2SiO4、Ni2SiO4、及び(Mg、Ni)2SiO4からなる群より選択される少なくとも一種を更に含有し、
前記Mg2SiO4、前記Ni2SiO4、及び前記(Mg、Ni)2SiO4の合計の含有割合が、0.2mol%以下である圧電/電歪磁器組成物。 - 前記PbMg1/3Nb2/3O3−PbTiO3−PbZrO3三成分固溶系組成物の組成が、下記式(1)により表される請求項1に記載の圧電/電歪磁器組成物。
Pbx(Mgy/3Nb2/3)aTibZrcO3 (1)
(上記式(1)中、0.95≦x≦1.05、0.8≦y≦1.0であり、かつa,b,cが、前記a,b,cの3つを座標軸とする座標中、(a,b,c)=(0.550,0.425,0.025)、(0.550,0.325,0.125)、(0.375,0.325,0.300)、(0.050,0.425,0.525)、(0.050,0.525,0.425)、(0.375,0.425,0.200)で囲まれる範囲の小数である(但し、a+b+c=1.000である)) - 前記Pb(Mg、Ni)1/3Nb2/3O3−PbTiO3−PbZrO3三成分固溶系組成物の組成が、下記式(2)により表される請求項1又は2に記載の圧電/電歪磁器組成物。
Pbx{(Mg1-yNiy)(1/3)×aNb2/3}bTicZrdO3 (2)
(上記式(2)中、0.95≦x≦1.05、0.05≦y≦1.00、0.90≦a≦1.10であり、かつb,c,dが、前記b,c,dを座標軸とする座標中、(b,c,d)=(0.550,0.425,0.025)、(0.550,0.325,0.125)、(0.375,0.325,0.300)、(0.050,0.425,0.525)、(0.050,0.525,0.425)、(0.375,0.425,0.200)で囲まれる範囲の小数である(但し、(b+c+d)=1.000である)) - 主成分としてのPbMg1/3Nb2/3O3−PbTiO3−PbZrO3三成分固溶系組成物、及びNiO換算で0.05〜3.0質量%のNiを含有する、又は
主成分としてのPb(Mg、Ni)1/3Nb2/3O3−PbTiO3−PbZrO3三成分固溶系組成物を含有するとともに、
Mg2SiO4、Ni2SiO4、及び(Mg、Ni)2SiO4からなる群より選択される少なくとも一種を更に含有し、
前記Mg2SiO4、前記Ni2SiO4、及び前記(Mg、Ni)2SiO4の合計の含有割合が、0.2mol%以下である圧電/電歪体。 - 前記PbMg1/3Nb2/3O3−PbTiO3−PbZrO3三成分固溶系組成物の組成が、下記式(1)により表される請求項4に記載の圧電/電歪体。
Pbx(Mgy/3Nb2/3)aTibZrcO3 (1)
(上記式(1)中、0.95≦x≦1.05、0.8≦y≦1.0であり、かつa,b,cが、前記a,b,cの3つを座標軸とする座標中、(a,b,c)=(0.550,0.425,0.025)、(0.550,0.325,0.125)、(0.375,0.325,0.300)、(0.050,0.425,0.525)、(0.050,0.525,0.425)、(0.375,0.425,0.200)で囲まれる範囲の小数である(但し、a+b+c=1.000である)) - 前記Pb(Mg、Ni)1/3Nb2/3O3−PbTiO3−PbZrO3三成分固溶系組成物の組成が、下記式(2)により表される請求項4又は5に記載の圧電/電歪体。
Pbx{(Mg1-yNiy)(1/3)×aNb2/3}bTicZrdO3 (2)
(上記式(2)中、0.95≦x≦1.05、0.05≦y≦1.00、0.90≦a≦1.10であり、かつb,c,dが、前記b,c,dを座標軸とする座標中、(b,c,d)=(0.550,0.425,0.025)、(0.550,0.325,0.125)、(0.375,0.325,0.300)、(0.050,0.425,0.525)、(0.050,0.525,0.425)、(0.375,0.425,0.200)で囲まれる範囲の小数である(但し、(b+c+d)=1.000である)) - セラミックスからなる基体と、
膜状に形成された請求項4〜6のいずれか一項に記載の圧電/電歪体と、
前記圧電/電歪体に電気的に接続される膜状の電極とを備え、
前記圧電/電歪体が、前記基体上に直接又は前記電極を介して固着されてなる圧電/電歪膜型素子。 - 前記圧電/電歪体及び前記電極をそれぞれ複数備え、
複数の前記圧電/電歪体が、複数の前記電極により交互に挟持・積層された請求項7に記載の圧電/電歪膜型素子。 - セラミックスからなる基体と、膜状に形成された複数の圧電/電歪体と、前記圧電/電歪体に電気的に接続される複数の膜状の電極とを備え、
前記圧電/電歪体と前記電極とが前記基体上に交互に積層され、かつ、前記圧電/電歪体のうちの最下層に位置する最下圧電/電歪体が、前記基体上に直接、又は前記電極のうちの最下層に位置する最下電極を介して固着されてなる圧電/電歪膜型素子であって、
少なくとも一の前記圧電/電歪体が、下記(1)の圧電/電歪体により構成され、
それ以外の前記圧電/電歪体のうちの少なくとも一つが、下記(2)の圧電/電歪体により構成された圧電/電歪膜型素子。
(1):主成分としてのPbMg1/3Nb2/3O3−PbTiO3−PbZrO3三成分固溶系組成物、及びNiO換算で0.05〜3.0質量%のNiを含有するとともに、Mg2SiO4、Ni2SiO4、及び(Mg、Ni)2SiO4からなる群より選択される少なくとも一種を更に含有し、
前記Mg2SiO4、前記Ni2SiO4、及び前記(Mg、Ni)2SiO4の合計の含有割合が、0.2mol%以下である圧電/電歪体。
(2):主成分としてのPb(Mg、Ni)1/3Nb2/3O3−PbTiO3−PbZrO3三成分固溶系組成物を含有するとともに、Mg2SiO4、Ni2SiO4、及び(Mg、Ni)2SiO4からなる群より選択される少なくとも一種を更に含有し、
前記Mg2SiO4、前記Ni2SiO4、及び前記(Mg、Ni)2SiO4の合計の含有割合が、0.2mol%以下である圧電/電歪体。 - 前記PbMg1/3Nb2/3O3−PbTiO3−PbZrO3三成分固溶系組成物の組成が、下記式(1)により表される請求項9に記載の圧電/電歪膜型素子。
Pbx(Mgy/3Nb2/3)aTibZrcO3 (1)
(上記式(1)中、0.95≦x≦1.05、0.8≦y≦1.0であり、かつa,b,cが、前記a,b,cの3つを座標軸とする座標中、(a,b,c)=(0.550,0.425,0.025)、(0.550,0.325,0.125)、(0.375,0.325,0.300)、(0.050,0.425,0.525)、(0.050,0.525,0.425)、(0.375,0.425,0.200)で囲まれる範囲の小数である(但し、a+b+c=1.000である)) - 前記Pb(Mg、Ni)1/3Nb2/3O3−PbTiO3−PbZrO3三成分固溶系組成物の組成が、下記式(2)により表される請求項9又は10に記載の圧電/電歪膜型素子。
Pbx{(Mg1-yNiy)(1/3)×aNb2/3}bTicZrdO3 (2)
(上記式(2)中、0.95≦x≦1.05、0.05≦y≦1.00、0.90≦a≦1.10であり、かつb,c,dが、前記b,c,dを座標軸とする座標中、(b,c,d)=(0.550,0.425,0.025)、(0.550,0.325,0.125)、(0.375,0.325,0.300)、(0.050,0.425,0.525)、(0.050,0.525,0.425)、(0.375,0.425,0.200)で囲まれる範囲の小数である(但し、(b+c+d)=1.000である)) - 前記最下圧電/電歪体の、NiOに換算したNiの含有率が、
前記最下圧電/電歪体以外の前記圧電/電歪体の、NiOに換算したNiの含有率よりも小さい請求項9〜11のいずれか一項に記載の圧電/電歪膜型素子。
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JP4538493B2 (ja) * | 2007-12-18 | 2010-09-08 | 日本碍子株式会社 | 圧電/電歪膜型素子 |
JP5704725B2 (ja) * | 2012-08-24 | 2015-04-22 | 太陽誘電株式会社 | 圧電セラミックス及び圧電素子 |
JP2016001662A (ja) * | 2014-06-11 | 2016-01-07 | パナソニック株式会社 | 誘電体素子および圧電体素子 |
Citations (3)
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JP2001181034A (ja) * | 1999-12-28 | 2001-07-03 | Tdk Corp | 圧電セラミック組成物 |
WO2003067673A1 (fr) * | 2002-02-08 | 2003-08-14 | Ngk Insulators, Ltd. | Element piezoelectrique multicouche et son procede de fabrication |
JP2005170693A (ja) * | 2003-12-08 | 2005-06-30 | Ngk Insulators Ltd | 圧電/電歪磁器組成物、圧電/電歪体、及び圧電/電歪膜型素子 |
Family Cites Families (2)
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US6610427B2 (en) * | 2000-09-20 | 2003-08-26 | Ngk Insulators, Ltd. | Piezoelectric element and process for production thereof |
JP3999156B2 (ja) * | 2003-03-31 | 2007-10-31 | 日本碍子株式会社 | 圧電/電歪膜型素子及び圧電/電歪磁器組成物 |
-
2005
- 2005-06-27 JP JP2005186282A patent/JP2007001838A/ja active Pending
-
2006
- 2006-06-21 US US11/472,143 patent/US20060290240A1/en not_active Abandoned
- 2006-06-26 EP EP20060253318 patent/EP1739064A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001181034A (ja) * | 1999-12-28 | 2001-07-03 | Tdk Corp | 圧電セラミック組成物 |
WO2003067673A1 (fr) * | 2002-02-08 | 2003-08-14 | Ngk Insulators, Ltd. | Element piezoelectrique multicouche et son procede de fabrication |
JP2005170693A (ja) * | 2003-12-08 | 2005-06-30 | Ngk Insulators Ltd | 圧電/電歪磁器組成物、圧電/電歪体、及び圧電/電歪膜型素子 |
Cited By (1)
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JP7537093B2 (ja) | 2020-02-17 | 2024-08-21 | 株式会社リコー | アクチュエータ、液体吐出ヘッド、液体吐出装置及びアクチュエータの製造方法 |
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US20060290240A1 (en) | 2006-12-28 |
EP1739064A1 (en) | 2007-01-03 |
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