WO2005092817A1 - 圧電磁器組成物 - Google Patents
圧電磁器組成物 Download PDFInfo
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- WO2005092817A1 WO2005092817A1 PCT/JP2005/003266 JP2005003266W WO2005092817A1 WO 2005092817 A1 WO2005092817 A1 WO 2005092817A1 JP 2005003266 W JP2005003266 W JP 2005003266W WO 2005092817 A1 WO2005092817 A1 WO 2005092817A1
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- piezoelectric ceramic
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- 239000000203 mixture Substances 0.000 title claims abstract description 87
- 239000000919 ceramic Substances 0.000 title claims abstract description 69
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 8
- 229910052451 lead zirconate titanate Inorganic materials 0.000 claims abstract description 6
- 229910052745 lead Inorganic materials 0.000 claims abstract description 4
- 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 claims abstract description 3
- 230000010355 oscillation Effects 0.000 claims description 30
- 230000008859 change Effects 0.000 claims description 20
- 230000008878 coupling Effects 0.000 claims description 15
- 238000010168 coupling process Methods 0.000 claims description 15
- 238000005859 coupling reaction Methods 0.000 claims description 15
- 239000013078 crystal Substances 0.000 claims description 13
- 229910052782 aluminium Inorganic materials 0.000 claims description 9
- 230000035939 shock Effects 0.000 claims description 9
- 229910052733 gallium Inorganic materials 0.000 claims description 7
- 229910052738 indium Inorganic materials 0.000 claims description 7
- 229910052758 niobium Inorganic materials 0.000 claims description 7
- 229910052706 scandium Inorganic materials 0.000 claims description 7
- 229910052715 tantalum Inorganic materials 0.000 claims description 7
- 229910008651 TiZr Inorganic materials 0.000 claims description 6
- 238000013001 point bending Methods 0.000 claims description 6
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 4
- 229910052573 porcelain Inorganic materials 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
- -1 composed of Pb Chemical class 0.000 claims description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 239000000843 powder Substances 0.000 description 55
- 230000010287 polarization Effects 0.000 description 27
- 239000002994 raw material Substances 0.000 description 17
- 239000011572 manganese Substances 0.000 description 16
- 239000010955 niobium Substances 0.000 description 15
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 14
- 239000010936 titanium Substances 0.000 description 12
- 230000005684 electric field Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000001354 calcination Methods 0.000 description 5
- 239000004372 Polyvinyl alcohol Substances 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 4
- 239000011888 foil Substances 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 229940093474 manganese carbonate Drugs 0.000 description 3
- 235000006748 manganese carbonate Nutrition 0.000 description 3
- 239000011656 manganese carbonate Substances 0.000 description 3
- 229910000016 manganese(II) carbonate Inorganic materials 0.000 description 3
- XMWCXZJXESXBBY-UHFFFAOYSA-L manganese(ii) carbonate Chemical compound [Mn+2].[O-]C([O-])=O XMWCXZJXESXBBY-UHFFFAOYSA-L 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910000484 niobium oxide Inorganic materials 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- HTUMBQDCCIXGCV-UHFFFAOYSA-N lead oxide Chemical compound [O-2].[Pb+2] HTUMBQDCCIXGCV-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000006104 solid solution Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- IQVNEKKDSLOHHK-FNCQTZNRSA-N (E,E)-hydramethylnon Chemical compound N1CC(C)(C)CNC1=NN=C(/C=C/C=1C=CC(=CC=1)C(F)(F)F)\C=C\C1=CC=C(C(F)(F)F)C=C1 IQVNEKKDSLOHHK-FNCQTZNRSA-N 0.000 description 1
- 101500021168 Aplysia californica Myomodulin-F Proteins 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 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 1
- 230000001590 oxidative effect Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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
- C04B35/48—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
- 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
- C04B35/491—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
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/80—Constructional details
- H10N30/85—Piezoelectric or electrostrictive active materials
- H10N30/853—Ceramic compositions
- H10N30/8548—Lead-based oxides
- H10N30/8554—Lead-zirconium titanate [PZT] based
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3251—Niobium oxides, niobates, tantalum oxides, tantalates, or oxide-forming salts thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3262—Manganese oxides, manganates, rhenium oxides or oxide-forming salts thereof, e.g. MnO
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/80—Phases present in the sintered or melt-cast ceramic products other than the main phase
Definitions
- the present invention relates to a piezoelectric ceramic composition suitable for a resonator, a filter, a sensor, and the like.
- Substitute third components such as Pb (Mg Nb) 0 and Pb (Mn Nb) 0, or
- Piezoelectric ceramic compositions have a function of freely converting and extracting electrical and mechanical energy, and are used as resonators, filters, actuators, ignition elements, ultrasonic motors, and the like.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2000-103674
- Patent Document 1 Japanese Patent Application Laid-Open No. 2000-103674
- Patent Document 2 JP 2003-128462 A
- Patent Document 2 JP-A-2003-128462. While pressing, SiO improves mechanical strength, but often reduces heat resistance.
- the heat resistance of the piezoelectric ceramic composition is improved by including Mn as a subcomponent, and in the example, the rate of change of the electromechanical coupling coefficient k before and after the heat test is an absolute value. 2. Excellent heat resistance of 33%.
- an object of the present invention is to provide a piezoelectric ceramic composition that can improve mechanical strength without lowering heat resistance.
- the present invention provides a
- the present invention provides a piezoelectric ceramic composition comprising a phase mainly composed of lead zirconate titanate having a perovskite structure, and an A1-containing phase.
- This piezoelectric ceramic composition has the absolute value of the rate of change of oscillation frequency F before and after the application of thermal shock.
- the heat resistance of I is 0.10% or less and the three-point bending strength ⁇ of 160NZmm 2 or more b3
- the main component contains Mn and Nb, and furthermore, Pba [(MnNb) TiZr] 0 (provided that 0.97 ⁇ 1.01, 0. 04 ⁇ x
- the A1-containing phase preferably contains Al 2 O 3.
- A1 described above has an electrical characteristic Q and an oscillation period max.
- ⁇ , x, y and ⁇ each represent a molar ratio.
- ⁇ , x, y and ⁇ each represent a molar ratio.
- ⁇ , x, y and ⁇ each represent a molar ratio.
- ⁇ , x, y and ⁇ each represent a molar ratio.
- ⁇ , x, y and ⁇ each represent a molar ratio.
- ⁇ , x, y and ⁇ each represent a molar ratio.
- ⁇ , x, y and ⁇ each represent a molar ratio.
- the piezoelectric ceramic composition of the present invention has an electrical characteristic Q by specifying a main component and specifying an element and an amount of a subcomponent.
- a characteristic of 4% or less can be obtained. It is assumed that this characteristic is specified by a method according to the description in the “Best Mode for Carrying Out the Invention” section and the “Example” section described later.
- ⁇ , x, y, and ⁇ of the main components are 0.98 ⁇ ⁇ 1.00, 0.
- the product preferably contains 0.005 to 0.15 wt% of Si as an auxiliary component in terms of SiO.
- the perovskite compound containing Pb, Zr, Ti, Mn, and Nb as main components Composed of a sintered body containing a material as a main component and at least one element selected from the group consisting of Al, Ga, In, Ta, and Sc as an auxiliary component.
- a piezoelectric ceramic composition having an I of 0.2% or less can be provided.
- a piezoelectric porcelain composition having improved mechanical strength without a decrease in heat resistance can be obtained by the presence of an A1-containing phase in a matrix. Further, according to the present invention, the electric characteristic Q
- the piezoelectric ceramic composition according to the present invention contains PZT having a bevelskite structure as a main component, and the main component preferably contains Mn and Nb. Further, the piezoelectric ceramic composition according to the present invention preferably contains a perovskite compound containing Pb, Zr, Ti, Mn, and Nb as main components.
- the piezoelectric ceramic composition according to the present invention having the above main components is typically composed of a sintered body. This sintered body contains crystal grains having the above-mentioned main components and a grain boundary phase between the crystal grains.
- an A1 containing phase exists in addition to the above phase as a main component, and the A1 containing phase is formed by adding a predetermined amount of Al 2 O 3 as a raw material.
- Power S can be.
- the added AI O is randomly precipitated in the grain boundary phase in the sintered body.
- Al O Is effective for improving the heat resistance of the main component, ie, PZT itself, by forming a solid solution in the crystal grains (lattices) that are the main component, and excess Al 2 O that cannot be completely dissolved in the crystal grains.
- the main component particularly, Pb ⁇ [( ⁇ Nb) Ti Zr] 0... % Or more
- the upper limit is not particularly limited because it does not impair the properties of the piezoelectric ceramic composition, but it is understood that the obtained effect is saturated. It is preferably at most 5. Owt%, more preferably at most 1.5 wt%.
- the piezoelectric ceramic composition of the present invention preferably has a main component represented by the following formula (1).
- the chemical composition is the composition after sintering.
- a, x, y and z each represent a molar ratio.
- ⁇ indicating the amount of Pb is preferably in the range of 0.97 ⁇ a ⁇ l.01. If ⁇ is less than 0.97, it is difficult to obtain a dense sintered body. On the other hand, if a exceeds 1.01, good heat resistance cannot be obtained. Therefore, (X is preferably in the range of 0.97 ⁇ a ⁇ l.01, and more preferably 0.998 ⁇ a ⁇ 1.00, and 0.99 ⁇ a ⁇ 1.00. It is more preferable to do so.
- X representing the Mn amount and the Nb amount is preferably in the range of 0.04 ⁇ x ⁇ 0.16.
- x is less than 0.04, the electric characteristic Q force S becomes smaller.
- X exceeds 0.16, good heat resistance max
- X is in the range of 0.04 ⁇ x ⁇ 0.16.
- X is further preferably set to 0.06 ⁇ x ⁇ 0.14 S, and more preferably set to 0.07 ⁇ x ⁇ 0.11 S.
- y indicating the Ti amount is in the range of 0.48 ⁇ y ⁇ 0.58. If y is less than 0.48, good heat resistance cannot be obtained. On the other hand, when y exceeds 0.58, it becomes difficult to obtain good temperature characteristics. Therefore, y is preferably in the range of 0.48 ⁇ y ⁇ 0.58 S, and more preferably 0.49 ⁇ y ⁇ 0.57, preferably 0.50 ⁇ y ⁇ 0.55 Is more preferable.
- good temperature characteristics means that changes in the characteristics of the piezoelectric ceramic composition due to temperature changes in the use environment are small.
- z indicating the amount of Zr is in the range of 0.32 ⁇ z ⁇ 0.41. If z is less than 0.32 or more than 0.41, good temperature characteristics cannot be obtained. Therefore, z is preferably in the range of 0.32 ⁇ z ⁇ 0.41 S, and more preferably 0.333 ⁇ z ⁇ 0.40, preferably 0.34 ⁇ z ⁇ 0.39. Is more preferable! / ,.
- the piezoelectric ceramic composition according to the present invention having the above-mentioned main components is obtained by oxidizing at least one element selected from Ga, In, Ta and Sc as a sub-component in addition to A1 described above. 0.01 to 15. ( ⁇ % in terms of material).
- 1/3 2/3 xyz 3 to be 0.01 to 15.Owt%, preferably 0.05 to 5 Owt%, more preferably 0.15 to 1.5 wt% in terms of oxide of the element. .
- A1 is used as an accessory component.
- the piezoelectric ceramic composition according to the present invention may contain SiO as an auxiliary component! Including SiO
- the preferable SiO amount is 0.005 with respect to Pb a [(MnNb) TiZr] 0 in the formula (1).
- a raw material of the main component powder of an oxide or a compound which becomes an oxide when heated is used. Specifically, use PbO powder, TiO powder, ZrO powder, MnCO powder, NbO powder, etc. Can.
- the raw material powders are each weighed so as to have the composition of the formula (1).
- an oxide powder of at least one element selected from Al, Ga, In, Ta and Sc is added as an auxiliary component in an amount of 0.01 to 15. Owt%. I do.
- the raw material powders of the sub-components are Al O powder, Ga O powder, Ta O powder, Sc O powder, In O
- the average particle size of each raw material powder is appropriately selected within the range of 0.1 to 3.0 m
- the raw material powder is not limited to the above-mentioned raw material powder, and a powder of a composite oxide containing two or more metals may be used as the raw material powder.
- calcination is performed at a temperature in a range of 700 to 950 ° C. for a predetermined time.
- the atmosphere at this time may be N or the atmosphere.
- the calcining time is 0.5-5 o'clock
- the timing for adding the raw material powder of the subcomponent is limited to that described above. It is not done. For example, first, only the main component powder is weighed, mixed, calcined and pulverized. Then, a predetermined amount of the raw material powder of the sub-component may be added to the main component powder obtained after the calcining and pulverization and mixed.
- the pulverized powder is granulated into granules so that the subsequent molding step can be smoothly performed.
- a suitable binder for example, polyvinyl alcohol (PVA) is added to the pulverized powder in a small amount, and the mixture is sufficiently mixed, and then, for example, passed through a mesh and sized to obtain a granulated powder.
- PVA polyvinyl alcohol
- the granulated powder is subjected to pressure molding at a pressure of 200 to 300 MPa to obtain a molded body having a desired shape.
- the molded body After removing the binder added during molding, the molded body is heated and held within a range of 1100 to 1250 ° C for a predetermined time to obtain a sintered body.
- the atmosphere at this time may be N or the atmosphere.
- the heating holding time may be appropriately selected within a range of 0.5 to 4 hours.
- polarization processing is performed.
- OEc (Ec is a coercive electric field) is applied to the sintered body at a temperature of 50 to 300 ° C. for 0.5 to 30 minutes.
- the polarization temperature should be 50-300 ° C.
- the preferred polarization treatment temperature is 60-250 ° C, and the more preferred polarization treatment temperature is 80-200 ° C.
- the applied electric field falls below 1.
- OEc polarization does not proceed.
- the applied electric field exceeds 2.
- the electric field applied in the polarization process be 1.0-2. OEc.
- a more preferable applied electric field is 1.1 to 1.8 Ec, and a more preferable applied electric field is 1.2 to 1.6 Ec.
- the polarization processing time is less than 0.5 minutes, the polarization is insufficient and sufficient characteristics cannot be obtained. On the other hand, if the polarization processing time exceeds 30 minutes, the time required for the polarization processing becomes longer, and the production efficiency is deteriorated. Therefore, the polarization processing time is 0.5-30 minutes.
- a preferred polarization treatment time is 0.7-20 minutes, and a more preferred polarization treatment time is 0.9-15 minutes.
- the polarization treatment is performed in an insulating oil heated to the above-mentioned temperature, for example, a silicon oil bath.
- the polarization direction is determined according to a desired vibration mode.
- the polarization direction is set to the direction shown in FIG. 1 (a).
- Thickness-shear vibration is vibration as shown in Fig. 1 (b).
- step (1) After the piezoelectric ceramic composition is polished to a desired thickness, a vibrating electrode is formed. Next, in step (1), after being cut into a desired shape by a dicing saw or the like, it functions as a piezoelectric element.
- the piezoelectric ceramic composition according to the present invention is suitably used as a material for a piezoelectric element such as a resonator, a filter, a resonator, an actuator, an ignition element, or an ultrasonic motor.
- a piezoelectric element such as a resonator, a filter, a resonator, an actuator, an ignition element, or an ultrasonic motor.
- the piezoelectric ceramic composition of the present invention three-point bending strength ⁇ force Sl60NZmm 2 or more, preferably 1 b3
- a mechanical strength of 70 NZmm 2 or more, more preferably 180 NZmm 2 or more can be obtained.
- the three-point bending strength ⁇ in the present invention is b3 according to Japanese Industrial Standard JIS R 1601.
- Equation (2) P: load (N), L: distance between support holes (m), w: width of test piece (m), t: thickness of test piece (m), yb: It is the net displacement (m) of the load point.
- the piezoelectric ceramic composition of the present invention can have excellent heat resistance.
- heat resistance was evaluated based on two criteria. One is heat resistance with respect to oscillation frequency F, and the other is
- the heat resistance is related to the gas-mechanical coupling coefficient k.
- description will be made in this order.
- the piezoelectric ceramic composition of the present invention has heat resistance I A F with respect to an oscillation frequency F.
- I A F I is the absolute value of the rate of change of the oscillation frequency F before and after the application of thermal shock
- IAFI of the embodiment described later is obtained by the same procedure.
- FIG. 2 shows an equivalent circuit of the piezoelectric resonator.
- R is
- L is equivalent inductance
- C is series capacitance
- C is parallel capacitance
- Equation (4) there are four parameters: resonance frequency Fr, series capacitance C, and parallel capacitance C C.
- the meter controls the value of the oscillation frequency F. Then, as shown in equations (5)-(7), the series capacitance
- a plurality of parameters are related to the quantity C and the parallel capacity C C respectively.
- the piezoelectric ceramic composition of the present invention has heat resistance with respect to the electromechanical coupling coefficient k.
- the electromechanical coupling coefficient k in the present invention is equal to the measured value at a measurement frequency of about 4 MHz.
- Vibration frequency, Fa anti-resonance frequency.
- I Ak I is the absolute value of the rate of change of the electromechanical coupling coefficient k before and after the application of thermal shock.
- the piezoelectric ceramic composition of the present invention has a Q force of 0 or more, preferably 80 or more, more preferably max.
- Q is the resonance frequency f r and the anti-resonance frequency f a max
- the piezoelectric ceramic composition of the present invention is also excellent in temperature characteristics.
- the temperature characteristic relating to the oscillation frequency can be reduced to 0.4% or less. This temperature characteristic is based on the oscillation frequency F at 20 ° C (20 ° C), and the oscillation frequency at 40 ° C (1
- Oscillation frequency change rate AF (-40 ° C) and oscillation frequency F and oscillation frequency at 85 ° C
- the rate of change of number AF (85 ° C) is obtained by the equations (10) and (11), and the temperature characteristics are evaluated.
- the piezoelectric ceramic composition of the present invention has an electrical property of Q of 30 or more,
- I is less than 1.8% heat resistance
- I A F (-40 ° C) I is less than 0.1%
- Palladium (Al 2 O 3) powder and silicon oxide (SiO 2) powder were prepared. This raw material powder is converted to Pb
- the obtained slurry was sufficiently dried and press-molded, and then calcined at 800 ° C. for 2 hours in the air.
- the calcined body was finely pulverized by a ball mill until the average particle size became 0.7 m, and the finely pulverized powder was dried.
- An appropriate amount of PVA (polyvinyl alcohol) was added as a binder to the dried finely pulverized powder and granulated.
- About 3 g of the granulated powder was put into a mold having a cavity of 20 mm long and 20 mm wide, and the granulated powder was formed at a pressure of 245 MPa using a uniaxial press forming machine.
- a sintered body (sample) having a length of 17.5 mm, a width of 17.5 mm and a thickness of 1.5 mm.
- the sample was cut into 15mm length x 5mm width by a dicing machine, and polarized at both ends (5. Omm direction).
- a temporary electrode was formed.
- polarization treatment was performed in a silicon oil bath at a temperature of 150 ° C by applying an electric field of 3 kVZmm for 15 minutes.
- the polarization direction was the direction shown in FIG.
- the temporary electrode was removed.
- the size of the sample after removing the temporary electrode is 15 mm long x 4 mm wide x 0.5 mm thick.
- the vibrating electrode 2 was composed of a 0.01 ⁇ m thick Cr underlayer and a 2 m thick Ag. The overlap of the vibration electrodes 2 was 1.5 mm.
- the measurement was performed at around 4 MHz using a 4294A manufactured by JASCO.
- the electrical characteristic Q is the resonance frequency fr max
- IAFI was determined by the procedure described above using the sample for which Q was measured. The result is max 0
- FIG. 5 shows that the whiter the color, the higher the concentration of A1. Based on the measurement results, the presence or absence of the A1-containing phase was determined.
- Fig. 4 shows the results. In FIG. 4, X indicates that the A1-containing phase does not exist, and ⁇ indicates that the A1-containing phase exists. In addition, this A1 content The phase has a size of about 0.5-10 ⁇ m.
- AI O is fixed in crystal grains (lattices) that also have the main component power.
- 160NZmm 2 or more, more 170NZmm 2 or more it is possible furthermore to obtain a three-point bending strength ⁇ on 190NZmm 2 or more.
- Fig. 6 shows the obtained electrical characteristics Q.
- max max max
- composition shown in FIG. 7 (main component: Pb a [(Mn Nb) Ti Zr] 0) After weighed so as to
- Example 3 Al 2 O 3 as a subcomponent
- the main component is Pba [(MnNb) TiZr] 0
- Example 4 A piezoelectric ceramic composition having the composition shown in FIG. 8 was produced in the same manner as in Example 2, and each characteristic was measured in the same manner as in Example 2.
- Fig. 8 shows the results.
- Ga as a raw material powder
- GaO, TaO, ScO, and InO as subcomponents were also used in Examples 1 and 2.
- FIG. 1 is a diagram for explaining a polarization direction.
- FIG. 2 is an equivalent circuit diagram of a piezoelectric resonator.
- FIG. 3 is a cross-sectional view of a test piece in a state where vibrating electrodes are formed on both upper and lower surfaces.
- FIG. 4 is a chart showing the composition and characteristics of the sample of Example 1.
- FIG. 5 is a view showing the result of observing the element distribution of the sample obtained in Example 1 by SEM-EDS.
- FIG. 6 is a chart showing the composition and characteristics of a sample of Example 2.
- FIG. 7 is a chart showing the composition and characteristics of a sample of Example 3.
- FIG. 8 is a chart showing the composition and characteristics of a sample of Example 4.
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Abstract
Description
Claims
Priority Applications (3)
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US10/597,366 US8142677B2 (en) | 2004-03-26 | 2005-02-28 | Piezoelectric ceramic composition |
JP2006511408A JP4424516B2 (ja) | 2004-03-26 | 2005-02-28 | 圧電磁器組成物 |
EP05719594A EP1728773A4 (en) | 2004-03-26 | 2005-02-28 | PIEZOELECTRIC CERAMIC COMPOSITION |
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JP2004091866 | 2004-03-26 | ||
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PCT/JP2005/003266 WO2005092817A1 (ja) | 2004-03-26 | 2005-02-28 | 圧電磁器組成物 |
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US (1) | US8142677B2 (ja) |
EP (1) | EP1728773A4 (ja) |
JP (1) | JP4424516B2 (ja) |
TW (1) | TWI272735B (ja) |
WO (1) | WO2005092817A1 (ja) |
Cited By (10)
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JP2007161516A (ja) * | 2005-12-12 | 2007-06-28 | Tdk Corp | 圧電磁器組成物 |
JP2007182353A (ja) * | 2006-01-10 | 2007-07-19 | Murata Mfg Co Ltd | 圧電磁器、及び圧電部品 |
JP2007230793A (ja) * | 2006-02-28 | 2007-09-13 | Tdk Corp | 圧電体磁器組成物 |
JP2007230792A (ja) * | 2006-02-28 | 2007-09-13 | Tdk Corp | 圧電磁器組成物 |
JP2007269504A (ja) * | 2006-03-30 | 2007-10-18 | Tdk Corp | 焼結部材の特性調整方法 |
JP2008094706A (ja) * | 2006-09-12 | 2008-04-24 | Tdk Corp | 圧電磁器組成物及びレゾネータ |
JP2009078964A (ja) * | 2007-09-06 | 2009-04-16 | Tdk Corp | 圧電磁器の製造方法 |
JP2009286660A (ja) * | 2008-05-29 | 2009-12-10 | Tdk Corp | 圧電磁器及びこれを用いたレゾネータ |
JP2015088611A (ja) * | 2013-10-30 | 2015-05-07 | 京セラ株式会社 | 圧電セラミック基体、およびそれを用いた圧電アクチュエータ基板、液体吐出ヘッドならびに記録装置 |
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JP2011068516A (ja) * | 2009-09-25 | 2011-04-07 | Tdk Corp | 圧電磁器組成物、圧電磁器、圧電素子及び発振子 |
KR20150110126A (ko) * | 2014-03-24 | 2015-10-02 | 삼성전기주식회사 | 압전소자 및 이를 포함하는 압전진동자 |
US10615330B1 (en) * | 2017-02-16 | 2020-04-07 | Panasonic Intellectual Property Management Co., Ltd. | Piezoelectric element, actuator, and liquid droplet ejection head |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000103674A (ja) * | 1998-09-29 | 2000-04-11 | Matsushita Electric Ind Co Ltd | 圧電磁器組成物およびその製造方法 |
JP2000327419A (ja) * | 1999-05-20 | 2000-11-28 | Murata Mfg Co Ltd | 圧電磁器材料およびそれを用いて得られた圧電磁器焼結体 |
JP2002060269A (ja) * | 2000-08-18 | 2002-02-26 | Murata Mfg Co Ltd | 圧電磁器材料、圧電磁器焼結体および圧電磁器素子 |
JP2002308672A (ja) * | 2001-02-08 | 2002-10-23 | Murata Mfg Co Ltd | 圧電セラミックの製造方法、圧電セラミック、および圧電セラミック素子 |
JP2002316871A (ja) * | 2001-02-19 | 2002-10-31 | Murata Mfg Co Ltd | 圧電磁器組成物およびこれを用いた圧電素子 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3522182A (en) * | 1964-03-10 | 1970-07-28 | Nippon Electric Co | Piezoelectric ceramic materials |
US3856693A (en) * | 1972-12-18 | 1974-12-24 | Bell Telephone Labor Inc | Method for producing lead zirconate titanate polycrystalline ceramics |
JP3163664B2 (ja) * | 1991-07-15 | 2001-05-08 | 株式会社村田製作所 | 圧電磁器材料 |
JP3221241B2 (ja) | 1994-07-19 | 2001-10-22 | 株式会社村田製作所 | 圧電性磁器 |
JP3932785B2 (ja) * | 1999-08-25 | 2007-06-20 | 株式会社村田製作所 | 圧電体の製造方法 |
JP3562402B2 (ja) * | 1999-09-29 | 2004-09-08 | 株式会社村田製作所 | 圧電磁器材料およびこれを用いた表面波装置 |
JP3861582B2 (ja) * | 1999-10-12 | 2006-12-20 | 株式会社村田製作所 | 圧電セラミック、圧電セラミック電子部品、および圧電セラミックの製造方法 |
JP4100847B2 (ja) * | 1999-12-28 | 2008-06-11 | Tdk株式会社 | 圧電セラミック組成物 |
JP3991564B2 (ja) * | 2000-08-25 | 2007-10-17 | 株式会社村田製作所 | 圧電磁器組成物及び圧電素子 |
JP2002208672A (ja) | 2001-01-11 | 2002-07-26 | Kyocera Corp | 半導体装置 |
JP4169203B2 (ja) | 2003-09-24 | 2008-10-22 | Tdk株式会社 | 圧電磁器組成物 |
DE602004024626D1 (de) * | 2003-09-24 | 2010-01-28 | Tdk Corp | Piezoelektrische keramische Zusammenstellung und Herstellung derselben, und piezoelektrisches Element |
US20060043329A1 (en) * | 2004-08-27 | 2006-03-02 | Tdk Corporation | Piezoelectric ceramic composition |
-
2005
- 2005-02-28 WO PCT/JP2005/003266 patent/WO2005092817A1/ja not_active Application Discontinuation
- 2005-02-28 JP JP2006511408A patent/JP4424516B2/ja not_active Expired - Fee Related
- 2005-02-28 EP EP05719594A patent/EP1728773A4/en not_active Withdrawn
- 2005-02-28 US US10/597,366 patent/US8142677B2/en not_active Expired - Fee Related
- 2005-03-03 TW TW094106459A patent/TWI272735B/zh not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000103674A (ja) * | 1998-09-29 | 2000-04-11 | Matsushita Electric Ind Co Ltd | 圧電磁器組成物およびその製造方法 |
JP2000327419A (ja) * | 1999-05-20 | 2000-11-28 | Murata Mfg Co Ltd | 圧電磁器材料およびそれを用いて得られた圧電磁器焼結体 |
JP2002060269A (ja) * | 2000-08-18 | 2002-02-26 | Murata Mfg Co Ltd | 圧電磁器材料、圧電磁器焼結体および圧電磁器素子 |
JP2002308672A (ja) * | 2001-02-08 | 2002-10-23 | Murata Mfg Co Ltd | 圧電セラミックの製造方法、圧電セラミック、および圧電セラミック素子 |
JP2002316871A (ja) * | 2001-02-19 | 2002-10-31 | Murata Mfg Co Ltd | 圧電磁器組成物およびこれを用いた圧電素子 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1728773A4 * |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007161516A (ja) * | 2005-12-12 | 2007-06-28 | Tdk Corp | 圧電磁器組成物 |
JP2007182353A (ja) * | 2006-01-10 | 2007-07-19 | Murata Mfg Co Ltd | 圧電磁器、及び圧電部品 |
JP2007230793A (ja) * | 2006-02-28 | 2007-09-13 | Tdk Corp | 圧電体磁器組成物 |
JP2007230792A (ja) * | 2006-02-28 | 2007-09-13 | Tdk Corp | 圧電磁器組成物 |
JP2007269504A (ja) * | 2006-03-30 | 2007-10-18 | Tdk Corp | 焼結部材の特性調整方法 |
JP2008094706A (ja) * | 2006-09-12 | 2008-04-24 | Tdk Corp | 圧電磁器組成物及びレゾネータ |
JP2009078964A (ja) * | 2007-09-06 | 2009-04-16 | Tdk Corp | 圧電磁器の製造方法 |
JP2009286660A (ja) * | 2008-05-29 | 2009-12-10 | Tdk Corp | 圧電磁器及びこれを用いたレゾネータ |
JP2015088611A (ja) * | 2013-10-30 | 2015-05-07 | 京セラ株式会社 | 圧電セラミック基体、およびそれを用いた圧電アクチュエータ基板、液体吐出ヘッドならびに記録装置 |
WO2017209532A1 (ko) * | 2016-06-02 | 2017-12-07 | 주식회사 모다이노칩 | 압전 소자 및 이의 제조 방법 |
Also Published As
Publication number | Publication date |
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EP1728773A4 (en) | 2009-08-19 |
JPWO2005092817A1 (ja) | 2008-02-14 |
TW200532956A (en) | 2005-10-01 |
US20080245990A1 (en) | 2008-10-09 |
EP1728773A1 (en) | 2006-12-06 |
TWI272735B (en) | 2007-02-01 |
JP4424516B2 (ja) | 2010-03-03 |
US8142677B2 (en) | 2012-03-27 |
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