JP4537212B2 - 圧電/電歪素子の製造方法 - Google Patents
圧電/電歪素子の製造方法 Download PDFInfo
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- JP4537212B2 JP4537212B2 JP2005004436A JP2005004436A JP4537212B2 JP 4537212 B2 JP4537212 B2 JP 4537212B2 JP 2005004436 A JP2005004436 A JP 2005004436A JP 2005004436 A JP2005004436 A JP 2005004436A JP 4537212 B2 JP4537212 B2 JP 4537212B2
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- piezoelectric
- electrostrictive
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- porcelain composition
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- 238000000034 method Methods 0.000 title claims description 42
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- 229910052573 porcelain Inorganic materials 0.000 claims description 111
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- XKENYNILAAWPFQ-UHFFFAOYSA-N dioxido(oxo)germane;lead(2+) Chemical compound [Pb+2].[O-][Ge]([O-])=O XKENYNILAAWPFQ-UHFFFAOYSA-N 0.000 claims description 44
- 239000006104 solid solution Substances 0.000 claims description 39
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- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 2
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- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
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- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
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- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- UZLYXNNZYFBAQO-UHFFFAOYSA-N oxygen(2-);ytterbium(3+) Chemical compound [O-2].[O-2].[O-2].[Yb+3].[Yb+3] UZLYXNNZYFBAQO-UHFFFAOYSA-N 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 1
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- 229910052703 rhodium Inorganic materials 0.000 description 1
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- HYXGAEYDKFCVMU-UHFFFAOYSA-N scandium oxide Chemical compound O=[Sc]O[Sc]=O HYXGAEYDKFCVMU-UHFFFAOYSA-N 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
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- 229910003454 ytterbium oxide Inorganic materials 0.000 description 1
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- 229910052726 zirconium Inorganic materials 0.000 description 1
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- C04B35/493—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zirconium or hafnium oxides, zirconates, zircon or hafnates containing also titanium oxides or titanates based on lead zirconates and lead titanates, e.g. PZT containing also other lead compounds
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Description
Pbx(Mgy/3Nb2/3)aTibZrcO3 …(1)
(前記組成式(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(但し、a+b+c=1.00)である)
Pbx{(Mg1-yNiy)(1/3)×aNb2/3}bTicZrdO3 …(2)
(前記組成式(2)中、0.95≦x≦1.05、0.05≦y≦0.20、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(但し、(b+c+d)=1.000)である)
PbO、MgO、Nb2O5、TiO2、ZrO2、及びNiO等の各元素の酸化物の原料を、所定の組成比となるように秤量及び混合して混合原料を調製した。この混合原料を1000℃で仮焼した後にボールミルで粉砕して、その組成比が20:43:37(質量比)であるPbMg1/3Nb2/3O3−PbZrO3−PbTiO3三成分固溶系組成物と、その含有割合が0.5質量%であるNiOとを含有してなる圧電/電歪磁器組成物成分を主成分とする第一の粒子を調製した。
第二の粒子を使用しないこと、及び焼成温度を表1に示す温度とすること以外は、前述の実施例1と同様にして圧電/電歪素子(比較例1,2)を得た。得られた圧電/電歪素子の各種物性値の測定結果を表1に示す。
PbO、MgO、Nb2O5、TiO2、ZrO2、及びNiO等の各元素の酸化物の原料を、所定の組成比となるように秤量及び混合して混合原料を調製した。この混合原料を1000℃で仮焼した後にボールミルで粉砕して、その組成比が20:43:37(質量比)であるとともに、MgとNiの割合が87:13(質量比)であるPb(Mg、Ni)1/3Nb2/3O3−PbZrO3−PbTiO3三成分固溶系組成物を含有してなる圧電/電歪磁器組成物成分を主成分とする第一の粒子を調製した。調製したこの第一の粒子を用いたこと以外は、前述の実施例1と同様にして圧電/電歪素子(実施例2)を得た。得られた圧電/電歪素子の各種物性値の測定結果を表2に示す。
第二の粒子を使用しないこと、及び焼成温度を表2に示す温度とすること以外は、前述の実施例2と同様にして圧電/電歪素子(比較例3,4)を得た。得られた圧電/電歪素子の各種物性値の測定結果を表2に示す。
圧電/電歪磁器組成物成分中のPbを、表3に示す置換割合となるように各種置換元素(Sr、Ba、La、又はBi)で置換すること以外は、前述の実施例1と同様にして圧電/電歪素子(実施例3〜6)を得た。得られた圧電/電歪素子の各種物性値の測定結果を表3に示す。
圧電/電歪磁器組成物成分中のTiを、表4に示す置換割合となるように各種置換元素(Nb、Ta、W、又はMo)で置換すること以外は、前述の実施例2と同様にして圧電/電歪素子(実施例7〜11)を得た。得られた圧電/電歪素子の各種物性値の測定結果を表4に示す。
表5に示す含有割合となるように各種含有化合物(MnO2、CeO2、又はSiO2)を含有させること以外は、前述の実施例1と同様にして圧電/電歪素子(実施例12〜14)を得た。得られた圧電/電歪素子の各種物性値の測定結果を表5に示す。
表6に示す含有割合となるように各種含有化合物(MnO2、CeO2、又はSiO2)を含有させること以外は、前述の実施例2と同様にして圧電/電歪素子(実施例15〜17)を得た。得られた圧電/電歪素子の各種物性値の測定結果を表6に示す。
表7に示す含有割合となるようにPGOを含有させる(但し、比較例5についてはPGOを含有させない)こと以外は、前述の実施例2と同様にして圧電/電歪素子(実施例18〜22、比較例5)を得た。得られた圧電/電歪素子の各種物性値の測定結果を表7に示す。
表8に示す含有割合となるように各種のPGOを含有させること以外は、前述の実施例2と同様にして圧電/電歪素子(実施例23〜27)を得た。得られた圧電/電歪素子の各種物性値の測定結果を表8に示す。
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、70Ag−30Pd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、1100℃、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、PGOの含有割合が1質量%であること以外は前述の実施例2と同様にして得た圧電/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、厚み15μmで積層した積層体を得た。この積層体を容器に入れ、1050℃、2時間熱処理した。次に、この積層体の最上部にAu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、熱処理して圧電/電歪膜型素子(実施例28)を製造した。製造した圧電/電歪膜形素子の屈曲変位の測定結果を表9に示す。
PGOを含有しない圧電/電歪磁器組成物を使用したこと以外は、前述の実施例30と同様にして圧電/電歪膜型素子(比較例6)を製造した。製造した圧電/電歪膜形素子の屈曲変位の測定結果を表9に示す。
その外周面上のPGOによる被覆率(PGO被覆率)が表10に示す値である、Niの置換割合が13mol%のPb(Mg、Ni)1/3Nb2/3O3−PbZrO3−PbTiO3三成分固溶系組成物を含有してなる圧電/電歪磁器組成物成分を主成分とする、圧電/電歪磁器組成物からなる粒子を調製した。これらの粒子を、0.5t/cm2の圧力で直径20mm×厚み6mmの大きさに圧粉成形して圧粉成形体を得た。得られた圧粉成形体をマグネシア容器内に収納し、1050℃で3時間焼成して焼成体(圧電/電歪体)を得た。得られた焼成体を、12mm×3mm×1mmの大きさに加工し、その両面に金スパッタにより電極を形成し、これを70℃のシリコンオイル中に浸漬するとともに、電極間に3kV/mmの直流電圧を15分間印加することにより分極して、圧電/電歪素子(実施例29〜31)を得た。得られた圧電/電歪素子の電界誘起歪ばらつきの測定結果を表10に示す。
前述の実施例2と同様にして、Niの置換割合が13mol%のPb(Mg、Ni)1/3Nb2/3O3−PbZrO3−PbTiO3三成分固溶系組成物を含有してなる圧電/電歪磁器組成物成分を主成分とする第一の粒子を調製した。この粒子と、実施例1と同様にして調製した、種々の粒子径を有するPGOからなる第二の粒子とを使用し、第一の粒子の粒子径に対する、第二の粒子の粒子径の比率(第二/第一(%))が表11に示す値となるように、並びにPGOの含有割合が1質量%となるように秤量及び混合すること以外は、前述の実施例1と同様にして圧電/電歪素子(実施例32〜35)を得た。得られた圧電/電歪素子の電界誘起歪ばらつきの測定結果を表11に示す。
Claims (5)
- 圧電/電歪体と、前記圧電/電歪体に電気的に接続される電極とを備えた圧電/電歪素子の製造方法であって、
PbMg1/3Nb2/3O3−PbZrO3−PbTiO3三成分固溶系組成物及びNiOを含有してなる、又はPb(Mg、Ni)1/3Nb2/3O3−PbZrO3−PbTiO3三成分固溶系組成物を含有してなる圧電/電歪磁器組成物を主成分とする第一の粒子と、ゲルマニウム酸鉛からなる第二の粒子とを混合して混合物を得、
得られた前記混合物を550〜900℃で仮焼して仮焼体を得、
得られた前記仮焼体を粉砕して粉砕粒子を得、
得られた前記粉砕粒子を焼成することにより前記圧電/電歪体を形成することを含む圧電/電歪素子の製造方法。 - 前記粉砕粒子が、前記圧電/電歪磁器組成物を主成分とし、その外周面上の少なくとも一部がゲルマニウム酸鉛で被覆された被覆粒子を30質量%以上含有する圧電/電歪磁器組成物粒子である請求項1に記載の圧電/電歪素子の製造方法。
- 前記粉砕粒子を焼成することにより、セラミックスからなる基体上に直接又は膜状の前記電極を介して、前記圧電/電歪体を膜状に固着形成する請求項1又は2に記載の圧電/電歪素子の製造方法。
- 前記ゲルマニウム酸鉛が、PbGeO3、Pb5Ge3O11、Pb3GeO5、PbGeO3とPb5Ge3O11の共晶、及びPb5Ge3O11とPb3GeO5の共晶からなる群より選択される少なくとも一種である請求項1〜3のいずれか一項に記載の圧電/電歪素子の製造方法。
- 前記第一の粒子を予め1100〜1300℃で熱処理した後に、前記第一の粒子と前記第二の粒子とを混合する請求項1〜4のいずれか一項に記載の圧電/電歪素子の製造方法。
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JP4463818B2 (ja) * | 2004-06-25 | 2010-05-19 | ニューブレクス株式会社 | 分布型光ファイバセンサ |
US7911113B1 (en) * | 2009-09-02 | 2011-03-22 | Ngk Insulators, Ltd. | Piezoelectric/electrostrictive element and method of manufacturing piezoelectric/electrostrictive element |
JP2013055276A (ja) * | 2011-09-06 | 2013-03-21 | Seiko Epson Corp | 液体噴射ヘッド及び液体噴射装置並びに圧電素子 |
US8324783B1 (en) | 2012-04-24 | 2012-12-04 | UltraSolar Technology, Inc. | Non-decaying electric power generation from pyroelectric materials |
RU2514353C1 (ru) * | 2012-12-20 | 2014-04-27 | Открытое акционерное общество "Научно-исследовательский институт "Элпа" с опытным производством" | Пьезокерамический материал |
RU2547875C1 (ru) * | 2013-12-30 | 2015-04-10 | Федеральное государственное автономное образовательное учреждение высшего профессионального образования "ЮЖНЫЙ ФЕДЕРАЛЬНЫЙ УНИВЕРСИТЕТ" | Пьезоэлектрический керамический материал |
US10353503B2 (en) * | 2015-10-29 | 2019-07-16 | Texas Instruments Incorporated | Integrated force sensing element |
KR102648766B1 (ko) * | 2017-11-20 | 2024-03-20 | 삼성디스플레이 주식회사 | 압력 센서, 그의 제조 방법, 및 이를 포함한 표시 장치 |
RU2753917C1 (ru) * | 2020-11-11 | 2021-08-24 | Акционерное общество "Научно-исследовательский институт физических измерений" | Пьезокерамический материал |
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EP1679751A3 (en) | 2008-12-17 |
EP1679751A2 (en) | 2006-07-12 |
US20080160179A1 (en) | 2008-07-03 |
JP2006193351A (ja) | 2006-07-27 |
US7425790B2 (en) | 2008-09-16 |
US7901729B2 (en) | 2011-03-08 |
US20060152113A1 (en) | 2006-07-13 |
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