JP5115342B2 - 圧電磁器、圧電素子及び積層型圧電素子 - Google Patents
圧電磁器、圧電素子及び積層型圧電素子 Download PDFInfo
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- JP5115342B2 JP5115342B2 JP2008151946A JP2008151946A JP5115342B2 JP 5115342 B2 JP5115342 B2 JP 5115342B2 JP 2008151946 A JP2008151946 A JP 2008151946A JP 2008151946 A JP2008151946 A JP 2008151946A JP 5115342 B2 JP5115342 B2 JP 5115342B2
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- 239000000919 ceramic Substances 0.000 title claims description 81
- 229910052751 metal Inorganic materials 0.000 claims description 20
- 239000002184 metal Substances 0.000 claims description 19
- 239000002131 composite material Substances 0.000 claims description 10
- 229910052721 tungsten Inorganic materials 0.000 claims description 10
- 229910052758 niobium Inorganic materials 0.000 claims description 8
- 229910052715 tantalum Inorganic materials 0.000 claims description 8
- 239000000470 constituent Substances 0.000 claims description 6
- 229910052692 Dysprosium Inorganic materials 0.000 claims description 4
- 229910052688 Gadolinium Inorganic materials 0.000 claims description 4
- 229910052727 yttrium Inorganic materials 0.000 claims description 4
- NAWXUBYGYWOOIX-SFHVURJKSA-N (2s)-2-[[4-[2-(2,4-diaminoquinazolin-6-yl)ethyl]benzoyl]amino]-4-methylidenepentanedioic acid Chemical compound C1=CC2=NC(N)=NC(N)=C2C=C1CCC1=CC=C(C(=O)N[C@@H](CC(=C)C(O)=O)C(O)=O)C=C1 NAWXUBYGYWOOIX-SFHVURJKSA-N 0.000 claims description 2
- 239000010949 copper Substances 0.000 description 69
- 239000010410 layer Substances 0.000 description 46
- 238000010304 firing Methods 0.000 description 30
- 239000000203 mixture Substances 0.000 description 24
- 239000011133 lead Substances 0.000 description 22
- 239000000843 powder Substances 0.000 description 22
- 239000011230 binding agent Substances 0.000 description 19
- 239000002003 electrode paste Substances 0.000 description 18
- 238000000034 method Methods 0.000 description 18
- 239000002994 raw material Substances 0.000 description 16
- 229910052760 oxygen Inorganic materials 0.000 description 15
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 14
- 239000001301 oxygen Substances 0.000 description 14
- 150000001875 compounds Chemical class 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 239000011701 zinc Substances 0.000 description 8
- 229910052802 copper Inorganic materials 0.000 description 7
- 239000003960 organic solvent Substances 0.000 description 7
- 239000003981 vehicle Substances 0.000 description 7
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 6
- 239000004020 conductor Substances 0.000 description 6
- 230000005684 electric field Effects 0.000 description 6
- 239000011241 protective layer Substances 0.000 description 6
- 239000010936 titanium Substances 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 5
- 238000009826 distribution Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000010931 gold Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 4
- 229910052737 gold Inorganic materials 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 230000010287 polarization Effects 0.000 description 4
- 238000007639 printing Methods 0.000 description 4
- 238000006467 substitution reaction Methods 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 3
- 229920000178 Acrylic resin Polymers 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 239000002270 dispersing agent Substances 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- -1 ethanol Chemical compound 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000002243 precursor Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- 229910052726 zirconium Inorganic materials 0.000 description 3
- 229910001252 Pd alloy Inorganic materials 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- WUOACPNHFRMFPN-UHFFFAOYSA-N alpha-terpineol Chemical compound CC1=CCC(C(C)(C)O)CC1 WUOACPNHFRMFPN-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- SQIFACVGCPWBQZ-UHFFFAOYSA-N delta-terpineol Natural products CC(C)(O)C1CCC(=C)CC1 SQIFACVGCPWBQZ-UHFFFAOYSA-N 0.000 description 2
- 239000003989 dielectric material Substances 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920002545 silicone oil Polymers 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 229940116411 terpineol Drugs 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- 239000003232 water-soluble binding agent Substances 0.000 description 2
- OAYXUHPQHDHDDZ-UHFFFAOYSA-N 2-(2-butoxyethoxy)ethanol Chemical compound CCCCOCCOCCO OAYXUHPQHDHDDZ-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 239000001856 Ethyl cellulose Substances 0.000 description 1
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000008135 aqueous vehicle Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- NKTZYSOLHFIEMF-UHFFFAOYSA-N dioxido(dioxo)tungsten;lead(2+) Chemical compound [Pb+2].[O-][W]([O-])(=O)=O NKTZYSOLHFIEMF-UHFFFAOYSA-N 0.000 description 1
- NKZSPGSOXYXWQA-UHFFFAOYSA-N dioxido(oxo)titanium;lead(2+) Chemical compound [Pb+2].[O-][Ti]([O-])=O NKZSPGSOXYXWQA-UHFFFAOYSA-N 0.000 description 1
- 238000007772 electroless plating Methods 0.000 description 1
- 229920001249 ethyl cellulose Polymers 0.000 description 1
- 235000019325 ethyl cellulose Nutrition 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000010944 silver (metal) Substances 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 239000012856 weighed raw material Substances 0.000 description 1
Landscapes
- Compositions Of Oxide Ceramics (AREA)
Description
(Pb1−x−yMex)[(Zn1/2W1/2)aTibZrc]O3 …(1)
0<a≦0.1 …(2)
0<b<1 …(3)
0<c<1 …(4)
a+b+c=1 …(5)
0.889≦b(1−a)/c≦0.984 …(6)
0≦x<1 …(7)
0≦y≦0.03 …(8)
0<1−x−y …(9)
0<y≦0.03 …(10)
0<x≦0.05 …(11)
d+e=1 …(12)
(Pb1−x−yMex)[(Zn1/2W1/2)aTibZrc]O3 …(1)
0<a≦0.1 …(2)
0<b<1 …(3)
0<c<1 …(4)
a+b+c=1 …(5)
0.889≦b(1−a)/c≦0.984…(6)
0≦x<1 …(7)
0≦y≦0.03 …(8)
0<1−x−y …(9)
(Pb1−xMex)[(Zn1/2W1/2)aTibZrc]O3 …(13)
d33=K33(ε33・s33)1/2 …(14)
0<y≦0.03 …(10)
0<x≦0.05 …(11)
d+e=1 …(12)
まず、主成分の原料として、PbO粉末、SrCO3粉末、ZnO粉末、WO3粉末、TiO2粉末、ZrO2粉末を用意し、焼成後の主成分の組成が、後述の表2〜4に示す組成となるように秤量した。さらに、第1副成分及び第2副成分の焼成後の組成が、表2〜4の組成となるようにそれぞれの原料酸化物を秤量した。また、Cu2Oを、表2〜4の主成分に対して0.03質量%となるように秤量した。
焼成後の主成分の組成が表3の組成となるように主成分の原料を配合したこと、及び、Cu2Oを配合しなかったこと以外は、上述の実施例1と同様の方法で試料を作製した。
焼成後の主成分の組成が表4の組成となるように主成分の原料を配合したこと、及び、焼成を低酸素還元性雰囲気に変えて空気雰囲気で行ったこと以外は、上述の実施例1と同様の方法で試料を作製した。
作製した各実施例、各参考例及び各比較例の試料について、比抵抗と、機械的品質係数Qmと、圧電特性として圧電d定数(d33)とを測定した。比抵抗はデジタル超高抵抗計(ADVANTEST社製、商品名:R8340A)を用いて測定した。機械的品質係数Qmは、共振周波数(fr)及び反共振周波数(fa)を測定し、これらの測定結果から求めた。なお、アクチュエータに用いる圧電磁器の機械的品質係数Qmは小さいほど好ましく、特に100以下であることが好ましい。圧電d定数(d33)は、2.0kV/mmの電界を印加したときの変位を、フリンジカウンタ式レーザ変位計を使用して測定した。なお、圧電定数d33は電極面に垂直(厚さ)方向の歪みに基づくものである。比抵抗、抗折強度、圧電d定数(d33)の測定結果を表5〜7に示す。
Claims (7)
- 下記一般式(1)で表される複合酸化物を主成分として含有する焼結体を備えており、
前記焼結体の粒界にCu元素が偏在している圧電磁器。
(Pb1−x−yMex)[(Zn1/2W1/2)aTibZrc]O3 …(1)
[式(1)中、MeはCa、Sr及びBaからなる群より選ばれる少なくとも1種の元素を表し、a、b、c、x及びyは下記式(2)〜(9)を満たす。
0<a≦0.1 …(2)
0<b<1 …(3)
0<c<1 …(4)
a+b+c=1 …(5)
0.889≦b(1−a)/c≦0.984 …(6)
0≦x<1 …(7)
0≦y≦0.03 …(8)
0<1−x−y …(9)] - 前記一般式(1)におけるyが下記式(10)を満たす請求項1に記載の圧電磁器。
0<y≦0.03 …(10) - 前記一般式(1)におけるxが下記式(11)を満たす請求項1又は2に記載の圧電磁器。
0<x≦0.05 …(11) - 前記焼結体が、構成元素としてTa、Nb及びWからなる群より選ばれる少なくとも1種の金属元素R1を有する第1副成分を含有し、
前記主成分100モルに対する前記第1副成分の含有量が、金属元素R1換算で0より大きく0.9モル以下である、請求項1〜3のいずれか一項に記載の圧電磁器。 - 前記焼結体が、構成元素として、Dy、Gd及びYからなる群より選ばれる少なくとも1種の金属元素R2と、Ta、Nb及びWからなる群より選ばれる少なくとも1種の金属元素R3と、を有する第2副成分を含有し、
前記主成分100モルに対する前記第2副成分の含有量が、Pb(R2dR3e)O3換算(d及びeは下記式(12)を満たす。)で0より大きく0.6モル以下である、請求項1〜4のいずれか一項に記載の圧電磁器。
d+e=1 …(12) - 請求項1〜5のいずれか一項に記載の圧電磁器を備える圧電素子。
- 請求項1〜5のいずれか一項に記載の圧電磁器からなる圧電体層と、Cu元素を含む内部電極層と、が交互に積層された積層型圧電素子。
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JP4219688B2 (ja) * | 2001-03-30 | 2009-02-04 | Tdk株式会社 | 圧電磁器及びその製造方法並びに圧電素子 |
JP2002338350A (ja) * | 2001-05-10 | 2002-11-27 | Dainippon Toryo Co Ltd | 圧電セラミックス |
JP4370135B2 (ja) * | 2003-09-10 | 2009-11-25 | 日本セラミック株式会社 | 圧電磁器組成物 |
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JP4735837B2 (ja) * | 2006-03-24 | 2011-07-27 | Tdk株式会社 | 積層型圧電素子の製造方法及び積層型圧電素子 |
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