JP2009179506A - 圧電/電歪セラミックス及び圧電/電歪セラミックスの製造方法 - Google Patents
圧電/電歪セラミックス及び圧電/電歪セラミックスの製造方法 Download PDFInfo
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- JP2009179506A JP2009179506A JP2008019076A JP2008019076A JP2009179506A JP 2009179506 A JP2009179506 A JP 2009179506A JP 2008019076 A JP2008019076 A JP 2008019076A JP 2008019076 A JP2008019076 A JP 2008019076A JP 2009179506 A JP2009179506 A JP 2009179506A
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- Prior art keywords
- piezoelectric
- electrostrictive
- magnesium
- nickel
- film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000919 ceramic Substances 0.000 title claims abstract description 44
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 66
- 239000011777 magnesium Substances 0.000 claims abstract description 52
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 34
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 28
- 239000010955 niobium Substances 0.000 claims abstract description 26
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 23
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims abstract description 21
- 150000001875 compounds Chemical class 0.000 claims abstract description 19
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000010936 titanium Substances 0.000 claims abstract description 10
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 9
- 239000013078 crystal Substances 0.000 claims abstract description 8
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 8
- 239000000470 constituent Substances 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 17
- 239000002994 raw material Substances 0.000 claims description 17
- 238000010586 diagram Methods 0.000 claims description 10
- 239000011258 core-shell material Substances 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 abstract description 34
- 239000000843 powder Substances 0.000 abstract description 34
- 239000000758 substrate Substances 0.000 abstract description 13
- 230000010287 polarization Effects 0.000 abstract description 9
- 238000009413 insulation Methods 0.000 abstract description 7
- 238000010304 firing Methods 0.000 abstract description 6
- 239000000306 component Substances 0.000 abstract 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 26
- 239000011133 lead Substances 0.000 description 23
- 239000000543 intermediate Substances 0.000 description 19
- 229910000480 nickel oxide Inorganic materials 0.000 description 18
- 239000011248 coating agent Substances 0.000 description 16
- 238000000576 coating method Methods 0.000 description 16
- 239000002002 slurry Substances 0.000 description 16
- 238000005452 bending Methods 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- URLJKFSTXLNXLG-UHFFFAOYSA-N niobium(5+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5] URLJKFSTXLNXLG-UHFFFAOYSA-N 0.000 description 13
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 13
- 238000000034 method Methods 0.000 description 12
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 12
- 239000002612 dispersion medium Substances 0.000 description 11
- 229910000484 niobium oxide Inorganic materials 0.000 description 11
- 229910052697 platinum Inorganic materials 0.000 description 11
- 238000006073 displacement reaction Methods 0.000 description 10
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 10
- 229910001928 zirconium oxide Inorganic materials 0.000 description 10
- 238000009826 distribution Methods 0.000 description 9
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 8
- 229910000464 lead oxide Inorganic materials 0.000 description 8
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 7
- 239000010931 gold Substances 0.000 description 7
- 239000001095 magnesium carbonate Substances 0.000 description 7
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 7
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 6
- 230000005684 electric field Effects 0.000 description 6
- 229910052737 gold Inorganic materials 0.000 description 6
- 238000003786 synthesis reaction Methods 0.000 description 6
- 239000011230 binding agent Substances 0.000 description 5
- 239000004020 conductor Substances 0.000 description 5
- 239000002270 dispersing agent Substances 0.000 description 5
- 239000003960 organic solvent Substances 0.000 description 5
- 238000007650 screen-printing Methods 0.000 description 5
- 239000000395 magnesium oxide Substances 0.000 description 4
- 230000002194 synthesizing effect Effects 0.000 description 4
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 3
- 238000001354 calcination Methods 0.000 description 3
- 229910000420 cerium oxide Inorganic materials 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 3
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 3
- 239000006104 solid solution Substances 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 238000004453 electron probe microanalysis Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 2
- 239000002609 medium Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 229910002076 stabilized zirconia Inorganic materials 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000012856 weighed raw material Substances 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- ZBSCCQXBYNSKPV-UHFFFAOYSA-N oxolead;oxomagnesium;2,4,5-trioxa-1$l^{5},3$l^{5}-diniobabicyclo[1.1.1]pentane 1,3-dioxide Chemical compound [Mg]=O.[Pb]=O.[Pb]=O.[Pb]=O.O1[Nb]2(=O)O[Nb]1(=O)O2 ZBSCCQXBYNSKPV-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
- 229910002077 partially stabilized zirconia Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 229940095064 tartrate Drugs 0.000 description 1
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- C01G33/006—Compounds containing, besides niobium, two or more other elements, with the exception of oxygen or hydrogen
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- C04B35/49—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
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Abstract
【解決手段】圧電/電歪素子1は、基体102の薄肉部104の上に、電極膜110、圧電/電歪体膜112、電極膜114、圧電/電歪体膜116及び電極膜118をこの順序で積層した積層構造を有している。圧電/電歪体膜112,116は、Aサイト構成元素として鉛を含み、Bサイト構成元素としてマグネシウム、ニッケル、ニオブ、チタン及びジルコニウムを含むペロブスカイト酸化物を含有するセラミックスの膜である。圧電/電歪体膜112,116を構成する結晶粒子は、コア部分よりもシェル部分においてニッケルの濃度が高くなり、シェル部分よりもコア部分においてマグネシウムの濃度が高くなるコアシェル構造を有する。このような圧電/電歪体膜112,116は、コロンバイト化合物を経由して合成した圧電/電歪材料の粉末を焼成することにより、得ることができる。
【選択図】図1
Description
<1−1 圧電/電歪素子1の構造>
図1は、本発明の第1実施形態に係る圧電/電歪素子1の主要部の模式図である。図1は、圧電/電歪素子1の断面図となっている。図1に示す圧電/電歪素子1は、インクジェットプリンタのヘッドに採用されるアクチュエータである。ただし、このことは、インクジェットプリンタのヘッドに採用されるアクチュエータ以外の圧電/電歪素子に本発明を適用することを妨げるものではない。例えば、各種のアクチュエータやセンサに本発明を適用することができる。
基体102は、積層体108を支持する。基体102は、セラミックス粉末のシート状成形体を積層したものを焼成したセラミックス焼結体である。
電歪素子1の変位量を増加させることができる。薄肉部104の板厚は、0.5μm以上15μm以下であることが望ましく、0.5μm以上10μm以下であることがより望ましい。この範囲を下回ると薄肉部104が損傷しやすくなるからである。また、この範囲を上回ると圧電/電歪素子1の変位量が減少する傾向にあるからである。
圧電/電歪体膜112,116は、セラミックス粉末の膜状成形体を焼成したセラミックス焼結体である。
電極膜110,114,118は、導電材料で構成される。電極膜110,114を構成する導電材料としては、白金(Pt)若しくはパラジウム(Pd)又はこれらを主成分とする合金を採用することが望ましい。ただし、圧電/電歪体膜112,116との共焼結が可能であれば、他の導電材料で電極膜110,114を構成してもよい。電極膜118を構成する導電材料としては、金(Au)又はこれを主成分とする合金を採用することが望ましい。
図5は、圧電/電歪素子1の製造方法を説明するフローチャートである。
圧電/電歪材料の粉末は、Bサイト構成元素のうちマグネシウム及びニオブを含みニッケルを含まない第1の元素群の素原料の粉末を反応させて中間体の粉末を合成し、Aサイト構成元素及びBサイト構成元素のうちニッケルを含みマグネシウムを含まない第2の元素群の素原料の粉末と当該中間体の粉末とを反応させることにより合成することが望ましい。素原料としては、酸化物を用いることが望ましいが、仮焼時に酸化物となる化合物、例えば、水酸化物、炭酸塩、酒石酸塩等も用いることができる。
図7は、本発明の第2実施形態に係る圧電/電歪素子2の主要部の模式図である。図7は、圧電/電歪素子2の断面図となっている。図7に示す圧電/電歪素子2は、第1実施形態に係る圧電/電歪素子1と同様に、インクジェットプリンタのヘッドに採用されるアクチュエータである。
{圧電/電歪材料の粉末の合成}
実施例1では、まず、マグネシウムとニオブとのモル比が1:2になるようにマグネシウム及びニオブの素原料である炭酸マグネシウム(MgCO3)及び酸化ニオブ(Nb2O5)の粉末を秤量した。
一方、圧電/電歪材料の粉末の合成とは別に、酸化イットリウムで安定化された安定化ジルコニア製の基体102を作製した。基体102の薄肉部104の平面形状は1.6mm×1.1mmの矩形とした。また、薄肉部104の板厚は6μmとした。
比較例1では、まず、0.20Pb{(Mg0.87Ni0.13)1/3Nb2/3}O3 −0.43PbxTiO3−0.37PbxZrO3という組成を有する圧電/電歪材料が得られるように、酸化鉛、炭酸マグネシウム、酸化ニッケル、酸化ニオブ、酸化チタン及び酸化ジルコニウムを秤量した。
実施例1と比較例1との対比から明らかなように、コロンバイト化合物を経由して合成した圧電/電歪材料の粉末を使用して圧電/電歪素子1を作製することにより、圧電/電歪体膜112,116を構成する結晶粒子のコアシェル構造を実現することができ、屈曲変位の変位量や耐久試験を行った後の電気抵抗値を改善することができる。
上記の説明は、全ての局面において例示であって、本発明がそれに限定されるものではない。例示されていない無数の変形例が、本発明の範囲から外れることなく想定され得るものと解される。特に、第1実施形態及び第2実施形態において説明した技術を組み合わせることは当然に予定されている。
110,114,118,210,214,218 電極膜
112,116,212,216 圧電/電歪体膜
182,282 屈曲振動領域
Claims (5)
- Aサイト構成元素として鉛を含み、Bサイト構成元素としてマグネシウム、ニッケル、ニオブ、チタン及びジルコニウムを含むペロブスカイト酸化物を含有する圧電/電歪セラミックスであって、
圧電/電歪セラミックスを構成する結晶粒子が、コア部分よりもシェル部分においてニッケルの濃度が高くなり、シェル部分よりもコア部分においてマグネシウムの濃度が高くなるコアシェル構造を有する圧電/電歪セラミックス。 - 組成が一般式aPbx{(Mg1-yNiy)z/3Nb2/3}O3 −bPbxTiO3−cPbxZrO3(a+b+c=1)で表され、
x,y及びzが0.95≦x≦1.10,0.05≦y≦0.50,0.90≦z≦1.10の範囲内にあり、
(a,b,c)が3元図上の5点(0.550,0.425,0.025),(0.550,0.325,0.125),(0.050,0.425,0.525),(0.050,0.525,0.425),(0.375,0.425,0.200)で囲まれる範囲内にある請求項1に記載の圧電/電歪セラミックス。 - 組成が一般式aPbx(Mgy/3Nb2/3)O3−bPbxTiO3−cPbxZrO3(a+b+c=1)で表され、
x及びyが0.95≦x≦1.10、0.90≦y≦1.10の範囲内にあり、(a,b,c)が3元図上の5点(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)で囲まれる範囲内にある主成分に、
0.1〜3.0質量%のNiOを含有させた請求項1に記載の圧電/電歪セラミックス。 - Aサイト構成元素として鉛を含み、Bサイト構成元素としてマグネシウム、ニッケル、ニオブ、ジルコニウム及びチタンを含むペロブスカイト酸化物を含有する圧電/電歪セラミックスの製造方法であって、
(a) Bサイト構成元素のうちマグネシウム及びニオブを含みニッケルを含まない第1の元素群の素原料を反応させる工程と、
(b) Aサイト構成元素及びBサイト構成元素のうちニッケルを含みマグネシウムを含まない第2の元素群の素原料と前記工程(a)により合成された中間体とを反応させる工程と、
を備える圧電/電歪セラミックスの製造方法。 - 第1の元素群がマグネシウム及びニオブからなり、前記工程(a)により合成された中間体がコロンバイト化合物である請求項4に記載の圧電/電歪セラミックスの製造方法。
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US12/356,181 US20090189112A1 (en) | 2008-01-30 | 2009-01-20 | Piezoelectric/electrostrictive ceramics and process for producing the same |
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JPS62191423A (ja) * | 1986-02-19 | 1987-08-21 | Denki Kagaku Kogyo Kk | 易焼結性鉛含有酸化物粉末の製造方法 |
JP2006202990A (ja) * | 2005-01-20 | 2006-08-03 | Ngk Insulators Ltd | 圧電素子 |
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JP2919360B2 (ja) * | 1996-06-17 | 1999-07-12 | 日本電気株式会社 | 誘電体磁器組成物 |
JP4298039B2 (ja) * | 1999-03-02 | 2009-07-15 | キヤノン株式会社 | コア/シェル型無機微粒子及び強誘電体薄膜の製造方法 |
US6610427B2 (en) * | 2000-09-20 | 2003-08-26 | Ngk Insulators, Ltd. | Piezoelectric element and process for production thereof |
JP3512379B2 (ja) * | 2000-09-20 | 2004-03-29 | 日本碍子株式会社 | 圧電体素子、及びその製造方法 |
JP2007204336A (ja) * | 2006-02-03 | 2007-08-16 | Denso Corp | 鉛フリー圧電セラミックス |
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JPS62191423A (ja) * | 1986-02-19 | 1987-08-21 | Denki Kagaku Kogyo Kk | 易焼結性鉛含有酸化物粉末の製造方法 |
JP2006202990A (ja) * | 2005-01-20 | 2006-08-03 | Ngk Insulators Ltd | 圧電素子 |
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