JP4927378B2 - 圧電磁器組成物および圧電素子 - Google Patents
圧電磁器組成物および圧電素子 Download PDFInfo
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- JP4927378B2 JP4927378B2 JP2005310241A JP2005310241A JP4927378B2 JP 4927378 B2 JP4927378 B2 JP 4927378B2 JP 2005310241 A JP2005310241 A JP 2005310241A JP 2005310241 A JP2005310241 A JP 2005310241A JP 4927378 B2 JP4927378 B2 JP 4927378B2
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- piezoelectric
- piezoelectric ceramic
- ceramic composition
- composition
- coo
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- 239000000203 mixture Substances 0.000 title claims description 84
- 239000000919 ceramic Substances 0.000 title claims description 59
- 229910052797 bismuth Inorganic materials 0.000 claims description 25
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims description 25
- 239000013078 crystal Substances 0.000 claims description 13
- 229910052719 titanium Inorganic materials 0.000 claims description 11
- 150000001875 compounds Chemical class 0.000 claims description 3
- 229910000428 cobalt oxide Inorganic materials 0.000 description 21
- 239000000843 powder Substances 0.000 description 19
- 238000002441 X-ray diffraction Methods 0.000 description 15
- 239000010936 titanium Substances 0.000 description 15
- 239000002994 raw material Substances 0.000 description 10
- 238000004458 analytical method Methods 0.000 description 8
- 239000012535 impurity Substances 0.000 description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 7
- 239000011734 sodium Substances 0.000 description 7
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 239000011812 mixed powder Substances 0.000 description 5
- 229910000510 noble metal Inorganic materials 0.000 description 5
- 239000002002 slurry Substances 0.000 description 5
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 229910052709 silver Inorganic materials 0.000 description 4
- 239000004332 silver Substances 0.000 description 4
- 239000000956 alloy Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 229910052451 lead zirconate titanate Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002609 medium Substances 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 229910010413 TiO 2 Inorganic materials 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 229910000416 bismuth oxide Inorganic materials 0.000 description 2
- TYIXMATWDRGMPF-UHFFFAOYSA-N dibismuth;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Bi+3].[Bi+3] TYIXMATWDRGMPF-UHFFFAOYSA-N 0.000 description 2
- 239000002612 dispersion medium Substances 0.000 description 2
- 150000002170 ethers Chemical class 0.000 description 2
- 230000001747 exhibiting effect Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc oxide Inorganic materials [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- VXQBJTKSVGFQOL-UHFFFAOYSA-N 2-(2-butoxyethoxy)ethyl acetate Chemical compound CCCCOCCOCCOC(C)=O VXQBJTKSVGFQOL-UHFFFAOYSA-N 0.000 description 1
- 229910015902 Bi 2 O 3 Inorganic materials 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 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
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001622 bismuth compounds Chemical class 0.000 description 1
- 229910002115 bismuth titanate Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009694 cold isostatic pressing Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000001514 detection method Methods 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
- 230000007613 environmental effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- HFGPZNIAWCZYJU-UHFFFAOYSA-N lead zirconate titanate Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Zr+4].[Pb+2] HFGPZNIAWCZYJU-UHFFFAOYSA-N 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Compositions Of Oxide Ceramics (AREA)
Description
aNa2O−bBi2O3−cTiO2−dCoO ・・・(1)
(但し、a、b、cおよびdはモル比を表し、0.030≦a≦0.042、0.330≦b≦0.370、0.580≦c≦0.620、0<d≦0.017、a+b+c+d=1である。)
aNa2O−bBi2O3−cTiO2−dCoO ・・・(1)
(但し、a、b、cおよびdはモル比を表し、0.030≦a≦0.042、0.330≦b≦0.370、0.580≦c≦0.620、0<d≦0.017、a+b+c+d=1である。)
なお、CoOの含有量とは、圧電磁器組成物全体に対するCoOの比率である。
さらに、500℃近傍の温度にも耐え得る高い耐熱性を有し、かつ圧電歪定数(d33)が25(pC/N)以上という高い圧電性を発揮させる観点から、上記組成範囲(1)におけるa〜dの値が、0.031≦a≦0.037、0.340≦b≦0.370、0.600≦c≦0.620、0.0031<d≦0.010とすることが好ましい。また、Co元素の含有量をCoO換算で表した場合、0.10質量%以上、0.35質量%以下とすることが好ましい。
また、ICP発光分析による組成分析の場合、例えば圧電磁器組成物を加圧硫酸分解したものをICP発光分析装置にかけて、組成分析を行なう。
特に、図2からも明らかなように、CoをCoOに換算して、CoOのモル比が、0.0031以上、0.010以下である試料No.3〜7は、より高い圧電歪定数を得ることができ、その値は25(pC/N)を超えることが認められた。また、その場合、Co元素の含有量をCoO換算し、CoOの含有量を重量%で計算した場合、0.10質量%以上、0.35質量%以下となる。
Claims (4)
- Na、Bi、TiおよびCoを含有する圧電磁器組成物であって、
前記Na、Bi、TiおよびCoをそれらの酸化物に換算したときの含有比が下記組成範囲(1)内であることを特徴とする圧電磁器組成物。
aNa2O−bBi2O3−cTiO2−dCoO ・・・(1)
(但し、a、b、cおよびdはモル比を表し、0.030≦a≦0.042、0.330≦b≦0.370、0.580≦c≦0.620、0<d≦0.017、a+b+c+d=1である。) - Na、Bi、TiおよびCoを含有し、Na0.5Bi4.5Ti4O15型結晶で示される構造の化合物を主成分とする圧電磁器組成物であって、
CoをCoOに換算したときの含有量が0.70質量%以下であることを特徴とする圧電磁器組成物。 - ビスマス層状構造強誘電体(BLSF)を主生成相とすることを特徴とする請求項1または2記載の圧電磁器組成物。
- 請求項1乃至3のいずれかに1項記載の圧電磁器組成物を用いてなることを特徴とする圧電素子。
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JP2007119269A JP2007119269A (ja) | 2007-05-17 |
JP4927378B2 true JP4927378B2 (ja) | 2012-05-09 |
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Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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EP2261191B1 (en) * | 2008-03-18 | 2018-06-13 | Kyocera Corporation | Piezoelectric ceramic, and piezoelectric elementing using the same |
JP5376817B2 (ja) * | 2008-03-18 | 2013-12-25 | 京セラ株式会社 | 圧電磁器およびそれを用いた圧電素子 |
US7808161B2 (en) * | 2008-03-25 | 2010-10-05 | Ngk Spark Plug Co., Ltd. | Piezoelectric ceramic composition and piezoelectric device |
JP5714819B2 (ja) | 2008-06-30 | 2015-05-07 | 日本特殊陶業株式会社 | 圧電磁器組成物及びこれを用いた圧電素子 |
JP5421010B2 (ja) * | 2008-07-25 | 2014-02-19 | 京セラ株式会社 | 圧電磁器およびそれを用いた圧電素子 |
JP6297820B2 (ja) * | 2013-11-15 | 2018-03-20 | 日本特殊陶業株式会社 | 圧電磁器組成物、圧電素子、内燃機関用センサ、及び圧電磁器組成物の製造方法 |
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JP3244027B2 (ja) * | 1997-07-09 | 2002-01-07 | 株式会社村田製作所 | 圧電磁器組成物 |
JP3020493B1 (ja) * | 1999-03-19 | 2000-03-15 | ティーディーケイ株式会社 | 圧電セラミックス |
JP3961175B2 (ja) * | 1999-11-30 | 2007-08-22 | 京セラ株式会社 | 発振子 |
JP3367929B2 (ja) * | 2000-02-08 | 2003-01-20 | ティーディーケイ株式会社 | 圧電セラミックス |
JP4260410B2 (ja) * | 2001-05-10 | 2009-04-30 | Tdk株式会社 | 圧電セラミックス |
JP4423872B2 (ja) * | 2003-03-28 | 2010-03-03 | Tdk株式会社 | 圧電セラミックスおよびその製造方法 |
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