JP4997521B2 - 圧電材料と非線形圧電素子 - Google Patents
圧電材料と非線形圧電素子 Download PDFInfo
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- 239000000463 material Substances 0.000 title claims description 43
- 239000013078 crystal Substances 0.000 claims description 15
- 229910052788 barium Inorganic materials 0.000 claims description 8
- 229910052712 strontium Inorganic materials 0.000 claims description 8
- 229910052746 lanthanum Inorganic materials 0.000 claims description 6
- 238000005245 sintering Methods 0.000 claims description 5
- 239000010409 thin film Substances 0.000 claims description 3
- 239000006104 solid solution Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 20
- 238000006073 displacement reaction Methods 0.000 description 18
- 230000005684 electric field Effects 0.000 description 16
- 239000000370 acceptor Substances 0.000 description 10
- 229910052748 manganese Inorganic materials 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 230000007547 defect Effects 0.000 description 8
- 230000010287 polarization Effects 0.000 description 8
- 150000002500 ions Chemical class 0.000 description 6
- 229910052758 niobium Inorganic materials 0.000 description 6
- 239000012071 phase Substances 0.000 description 6
- 238000005259 measurement Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 229910052726 zirconium Inorganic materials 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 3
- 229910052700 potassium Inorganic materials 0.000 description 3
- 230000002441 reversible effect Effects 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 229910052797 bismuth Inorganic materials 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- 229910052727 yttrium Inorganic materials 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 229910052693 Europium Inorganic materials 0.000 description 1
- 229910052688 Gadolinium Inorganic materials 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- 229910052777 Praseodymium Inorganic materials 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 229910052747 lanthanoid Inorganic materials 0.000 description 1
- 150000002602 lanthanoids Chemical class 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 238000012886 linear function Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 229910052762 osmium Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—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
- C04B35/46—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 titanium oxides or titanates
- C04B35/462—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 titanium oxides or titanates based on titanates
- C04B35/465—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 titanium oxides or titanates based on titanates based on alkaline earth metal titanates
- C04B35/468—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 titanium oxides or titanates based on titanates based on alkaline earth metal titanates based on barium titanates
- C04B35/4682—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 titanium oxides or titanates based on titanates based on alkaline earth metal titanates based on barium titanates based on BaTiO3 perovskite phase
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- H10N30/00—Piezoelectric or electrostrictive devices
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- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
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- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
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Description
、分極処理したPZTセラミックスと呼ばれるものである。
である。この値は通常の圧電効果より数十倍以上大きい。しかし、この巨大電歪効果は通常は不可逆であるため、その有用性は低い。
〔1〕可動性の点欠陥を有する強誘電体圧電材料であって、可動性の点欠陥が、その短範囲秩序の対称性が強誘電相の結晶対称性に一致するように配置されており、ドメインの電場下での可逆的変換によって非線形圧電効果が発現されることを特徴とする圧電材料である。
〔2〕可動性の点欠陥は、化学平衡によって、または添加元素によって導入された強誘電体を構成する元素の空孔である。
〔3〕キュリー温度以下で時効処理されて点欠陥の短範囲秩序の対称性が強誘電相の結晶対称性に一致するように配置されている。
〔4〕単結晶体または多結晶体である。
〔5〕薄膜である。
〔6〕多層膜である。
〔7〕強誘電体がABO3型のものである。
〔8〕強誘電体がBaTiO3または(Ba,Sr)TiO3型である。
〔9〕強誘電体がPb(Zr,Ti)O3または(Pb,希土類元素)(Zr,Ti)O3型である。
〔10〕他元素が添加されている上記いずれかの圧電材料である。
〔11〕他元素はアルカリ金属、アルカリ土類金属および遷移金属のうちの1種以上の元素である。
〔12〕他元素が20モル%以下の割合で添加されている。
〔13〕添加される他元素は、Na,K,Mg,Ca,Al,V,Cr,Mn,Fe,Co,Ni,Zn,Ga,Rb,Sr,Y,Zr,Nb,Mo,Ru,Rh,Ag,Sn,Hf,Ta,W,Os,Ir,Pt,Pb,Bl,および、希土類元素のうちの1種以上である。
Otuka PHYSICAL REVIEW LETTERS Vol.85, No.5, 2000 July 31, pp.1016-1019)を踏まえて、前記巨大な電歪効果を得るための手段として、点欠陥の対称性を利用して圧電材料の電気分極方向が異なる領域:ドメインの変換を可逆的なものとしたことにより導かれたものである。すなわち、上記のような新しい技術的知見に基づく新規な技術思想として完成されている。
Nature Materials, 3, 91(2004)
セプター、そしてドナー元素を添加、ドープすることができる。
の他の液相法、気相法の各種であってよい。
Pb(Zr,Ti)O3等のように、ホスト原子A,Bは1種または2種以上の各種のも
のであってよく、アクセプターは、ホスト原子A,Bの少くともいずれかよりイオン価が小さく、ドナーは、イオン価が大きいものとして選択されればよい。たとえばBaTiO3型、(Ba,Sr)TiO3型のものにおいては、アクセプターとして、BaまたはBa,Srに係わるものとしてK,Li,Naというアルカリ金属が、Tiに係わるものとして
Fe、Mn、Co,Cr,Ni,Cu,Zn,Al等が、ドナーとして、Ba,Srより
イオン価の大きいLa、Ce,Pr,Nd,Sm,Eu,Gd等のランタノイドやY,Bi等や、Tiよりイオン価の大きいNb、Ta,Sb,Bi等が例示される。
らにLa0.4mol%を添加した結晶を1400℃、4時間の焼結により製造した。この各々のセラミックス圧電材料について電界−変位特性を測定した。
、Laを添加しない場合に比べて歪みが、30〜40%も増大することが確認された。
<2>同様にしてBa(Ti0.99Mn0.01)O3に、Laを1mol%添加した圧電材料
を製造し、その電界−変位特性を測定した。
<3>さらに、Ba(Ti0.99Mn0.01)O3に、Laを0.1mol%、0.2mol
%、0.3mol%、0.4mol%の各々を添加した場合についても電歪効果を評価し
た。
<4>上記と同様にして、焼結法によって、Ba(Ti0.99 Mn0.01)O3に
、Nbを、0.1mol%、1.0mol%、そして2.0mol%の各々を添加した場合の結晶体を製造した。これら各々について電歪効果を評価した。その結果を例示したものが図5、図6および図7である。いずれの場合も電歪効果の増大が見られる。
Claims (6)
- ABO3型強誘電体材料において、ホスト原子AおよびBの少くともいずれかよりも価数の小さいイオン価を有するアクセプターとともに、価数の大きいドナーが添加されている圧電材料であって、前記ABO3型強誘電体材料がBaTiO3、(Ba,Sr)TiO3もしくはそれらの固溶体であり、前記アクセプターが、Tiに置換する場合はTi(+4価)よりイオン価が小さいMnであり、前記ドナーがBaもしくはTiよりイオン価が大きいLa又はNbであり、アクセプターが、0.01mol%〜10mol%の範囲で、ドナーが、0.01mol%〜10mol%の範囲で添加されており、1400℃の焼結により製造されたことを特徴とする非線形圧電材料。
- 単結晶体または多結晶体であることを特徴とする請求項1の非線形圧電材料。
- 薄膜であることを特徴とする請求項1又は2の非線形圧電材料。
- キュリー温度以下で時効処理あるいは室温までゆっくり冷却されていることを特徴とする請求項1から3のいずれかの非線形圧電材料。
- 請求項1から4のうちのいずれかの非線形圧電材料が少くともその構成の一部とされていることを特徴とする非線形圧電素子。
- 請求項5の非線形圧電素子が構成の少くとも一部として組込まれていることを特徴とする電気機器もしくは機器、あるいはその部品。
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004331245A JP4997521B2 (ja) | 2004-11-15 | 2004-11-15 | 圧電材料と非線形圧電素子 |
| PCT/JP2005/021323 WO2006052033A1 (ja) | 2004-11-15 | 2005-11-15 | 圧電材料と非線形圧電素子 |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004331245A JP4997521B2 (ja) | 2004-11-15 | 2004-11-15 | 圧電材料と非線形圧電素子 |
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| Publication Number | Publication Date |
|---|---|
| JP2006137654A JP2006137654A (ja) | 2006-06-01 |
| JP4997521B2 true JP4997521B2 (ja) | 2012-08-08 |
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| JP (1) | JP4997521B2 (ja) |
| WO (1) | WO2006052033A1 (ja) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5305263B2 (ja) * | 2007-10-17 | 2013-10-02 | 独立行政法人産業技術総合研究所 | 発電用圧電体 |
| JP2010150126A (ja) | 2008-11-18 | 2010-07-08 | Ngk Insulators Ltd | 圧電/電歪セラミックス組成物、圧電/電歪セラミックスの焼結体、圧電/電歪素子、圧電/電歪セラミックス組成物の製造方法及び圧電/電歪素子の製造方法 |
| FR2956869B1 (fr) | 2010-03-01 | 2014-05-16 | Alex Hr Roustaei | Systeme de production de film flexible a haute capacite destine a des cellules photovoltaiques et oled par deposition cyclique des couches |
| KR101092464B1 (ko) | 2010-05-07 | 2011-12-13 | 경북대학교 산학협력단 | 거대 이형접합층을 이용한 압전소자 및 그 제조방법 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01244357A (ja) * | 1988-03-26 | 1989-09-28 | Olympus Optical Co Ltd | 超音波画像形成方法 |
| JPH08333158A (ja) * | 1995-06-02 | 1996-12-17 | Matsushita Electric Ind Co Ltd | 圧電磁器組成物とこれを用いた圧電共振子の製造方法 |
| JP2000327415A (ja) * | 1998-10-21 | 2000-11-28 | Teikoku Chem Ind Corp Ltd | 強誘電体薄膜形成用組成物 |
| JP4748291B2 (ja) * | 2001-01-10 | 2011-08-17 | Tdk株式会社 | 積層体変位素子 |
| DE10229086A1 (de) * | 2001-09-29 | 2003-04-17 | Ceramtec Ag | Piezoelektrische keramische Werkstoffe auf der Basis von Bleizirkonattitanat (PZT) mit der Kristallstruktur des Perowskits |
| US6702952B2 (en) * | 2001-12-19 | 2004-03-09 | Ngk Insulators, Ltd. | Piezoelectric/electrostrictive material and method for preparing the same |
| JP3678234B2 (ja) * | 2002-07-25 | 2005-08-03 | 株式会社村田製作所 | 積層型圧電部品の製造方法、及び積層型電子部品 |
| JP4698161B2 (ja) * | 2003-05-13 | 2011-06-08 | 独立行政法人科学技術振興機構 | 圧電材料とその製造方法 |
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2004
- 2004-11-15 JP JP2004331245A patent/JP4997521B2/ja not_active Expired - Fee Related
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- 2005-11-15 WO PCT/JP2005/021323 patent/WO2006052033A1/ja not_active Ceased
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| JP2006137654A (ja) | 2006-06-01 |
| WO2006052033A1 (ja) | 2006-05-18 |
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