CN108975910A - A kind of sodium niobate base ferroelectric ceramics and its preparation method and application with temperature-stable electric field induced strain - Google Patents
A kind of sodium niobate base ferroelectric ceramics and its preparation method and application with temperature-stable electric field induced strain Download PDFInfo
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- 230000005684 electric field Effects 0.000 title claims abstract description 41
- UYLYBEXRJGPQSH-UHFFFAOYSA-N sodium;oxido(dioxo)niobium Chemical compound [Na+].[O-][Nb](=O)=O UYLYBEXRJGPQSH-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 239000000919 ceramic Substances 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 16
- 239000000203 mixture Substances 0.000 claims abstract description 11
- 239000000126 substance Substances 0.000 claims abstract description 10
- 230000008859 change Effects 0.000 claims abstract description 8
- 230000009471 action Effects 0.000 claims abstract description 4
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 4
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 4
- 238000012545 processing Methods 0.000 claims abstract description 3
- 239000000843 powder Substances 0.000 claims description 25
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 9
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 9
- 229940068984 polyvinyl alcohol Drugs 0.000 claims description 9
- 235000019422 polyvinyl alcohol Nutrition 0.000 claims description 9
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 8
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 8
- 238000000498 ball milling Methods 0.000 claims description 8
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- ZKATWMILCYLAPD-UHFFFAOYSA-N niobium pentoxide Chemical compound O=[Nb](=O)O[Nb](=O)=O ZKATWMILCYLAPD-UHFFFAOYSA-N 0.000 claims description 8
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 4
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- 238000005498 polishing Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 238000007873 sieving Methods 0.000 claims description 4
- 239000004332 silver Substances 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims description 4
- 238000005245 sintering Methods 0.000 claims description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 238000010792 warming Methods 0.000 claims description 4
- 239000012856 weighed raw material Substances 0.000 claims description 4
- 238000000227 grinding Methods 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims description 2
- 238000011056 performance test Methods 0.000 claims 2
- 229910002112 ferroelectric ceramic material Inorganic materials 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract description 2
- 239000004615 ingredient Substances 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 7
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 239000004570 mortar (masonry) Substances 0.000 description 4
- 230000005621 ferroelectricity Effects 0.000 description 3
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 230000002194 synthesizing effect Effects 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- 229910003378 NaNbO3 Inorganic materials 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000005036 potential barrier Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- MUPJWXCPTRQOKY-UHFFFAOYSA-N sodium;niobium(5+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Na+].[Nb+5] MUPJWXCPTRQOKY-UHFFFAOYSA-N 0.000 description 1
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Abstract
A kind of sodium niobate ferroelectric ceramics and its preparation method and application with temperature-stable electric field induced strain disclosed by the invention, belongs to ferroelectric ceramic material preparation technical field, and the chemical composition of the ceramic medium material is (1-x) NaNbO3‑xBa0.85Ca0.15Zr0.1Ti0.9O3, wherein x is 0.13~0.15.The material system can obtain a kind of consistency height, the Electrostrictive strain with temperature-stable at a lower temperature using solid reaction process preparation synthesis.Between 30 DEG C to 120 DEG C, under 60kV/cm electric field action, low hysteresis Electrostrictive strain maximum value is between 0.10%~0.12%, and change rate is less than 12%.Ingredient and processing step of the invention is simple, easily operated, reproducible.It can be applied to have temperature stability on the high-precision driver of high request, there is great economic value.
Description
Technical field
The invention belongs to ferroelectric ceramic material preparation technical fields, and in particular to one kind has temperature-stable electric field induced strain
Sodium niobate ferroelectric ceramics and its preparation method and application.
Background technique
In high-precision driver, often through electroluminescent the answering for obtaining hysteresis degree very little to ferroelectric material application electric field
Become, this strain precision can control in dozens to a few hundred nanometers, have important value in highly sophisticated device.From the angle of application
For degree, other than with biggish electric field induced strain, the temperature stability of the strain is also to evaluate the material application value
One important indicator.For ferroelectric material, its polarization intensity can all decline when the temperature increases, so as to cause phase same electric field
The reduction strained under intensity.Such as from room temperature to 120 DEG C, the change rate of strain should can meet the material less than 20%
It is used in high-temperature section.
It in the prior art, is that the material is free at quasi- similar shape phase boundary for generate that the ferroelectric material of Large strain utilizes more
The energy minimum principle of potential barrier, to ensure that its high strain.But the problem of being the largest is exactly that the phase boundary can be with the change of temperature
And change, very poor temperature stability is also shown so as to cause corresponding strain.
Summary of the invention
The purpose of the present invention is to provide a kind of sodium niobate ferroelectric ceramics and its system with temperature-stable electric field induced strain
Preparation Method and application, this method operating procedure are simple, easily operated, reproducible；It makes pottery through sodium niobate ferroelectricity made from this method
Ceramic material consistency height, the Electrostrictive strain with temperature-stable, thus can be applied to have height to temperature stability
It is required that high-precision field of drivers.
The present invention is to be achieved through the following technical solutions:
The invention discloses a kind of sodium niobate ferroelectric ceramics with temperature-stable electric field induced strain, sodium niobate ferroelectricity potteries
The chemical composition of porcelain is (1-x) NaNbO3-xBa0.85Ca0.15Zr0.1Ti0.9O3, wherein x=0.13~0.15.
Preferably, the sodium niobate ferroelectric ceramics is between 30 DEG C~120 DEG C, and under 60kV/cm electric field action, low hysteresis is electroluminescent
Flexible strain maximum value is 0.10%~0.12%, and change rate is less than 12%.
The invention also discloses a kind of preparation method of sodium niobate ferroelectric ceramics with temperature-stable electric field induced strain, packets
Include following steps:
1) (1-x) NaNbO is pressed3-xBa0.85Ca0.15Zr0.1Ti0.9O3, the chemical composition of x=0.13~0.15 weighs raw material
Na2CO3、Nb2O5、BaCO3、CaCO3、ZrO2And TiO2；After weighed raw material is mixed through ball milling, dry, be ground up, sieved processing,
Then in 1250 DEG C of progress pre-burnings, 6h is kept the temperature, room temperature is naturally cooled to, comes out of the stove, again ball milling, synthesize NN-xBCZT powder；
2) the NN-xBCZT powder of step 1) synthesis dried, grinding, cross 120 meshes, NN-xBCZT powder quality is added
5% poly-vinyl alcohol solution is uniformly mixed, and sieving takes the powder between 60~100 mesh；
3) after standing powder made from step 2) for 24 hours, it is pressed into blank, blank is risen to 600 DEG C by room temperature, heat preservation
2h；
4) by step 3) treated blank sintering processes 4h at 1450 DEG C, room temperature is cooled to the furnace, being made has width
Temperature stablizes the sodium niobate ferroelectric ceramics of electric field induced strain.
Preferably, in step 2), the concentration of poly-vinyl alcohol solution is 5%.
It preferably, in step 3), is put into the powder after stewing process in the stainless steel mould that diameter is 8mm,
Cylindric blank is pressed under 250MPa pressure.
Preferably, in step 4), blank is put into crucible, is covered, and use similar powder as material is buried and be sintered place
Reason.
It preferably, further include the sodium niobate ferroelectricity pottery to obtained with temperature-stable electric field induced strain after step 4)
The operation that porcelain is tested for the property, specifically: burned sodium niobate ferroelectric ceramics piece is polishing to a thickness of 0.8mm, is dried in the air naturally
Dry, lower surface coats silver paste on it, is placed in furnace and is warming up to 600 DEG C, keeps the temperature 20min, and cooled to room temperature carries out dielectric
Performance and strain property test.
The invention also discloses the above-mentioned sodium niobate ferroelectric ceramics with temperature-stable electric field induced strain in preparation high-precision
Application in microdrive.
Compared with prior art, the invention has the following beneficial technical effects:
The chemical composition of sodium niobate ferroelectric ceramic material disclosed by the invention with temperature-stable electric field induced strain is (1-
x)NaNbO3-xBa0.85Ca0.15Zr0.1Ti0.9O3(NN-xBCZT), wherein x is 0.13~0.15.The present invention utilizes sodium niobate
(NaNbO3, NN) base ferroelectric ceramics high-curie temperature (> 400 DEG C), introduce Ba0.85Ca0.15Zr0.1Ti0.9O3(BCZT) constituent element is logical
It crosses component design and to 120 DEG C or more while keeping the system component from room temperature to being 120 DEG C (1-x) NN-xBCZT adjusting
Single phase structure, to obtain the electric field induced strain with temperature-stable, to meet the application demand of high-precision driver.The material
Material system can be at a lower temperature using solid reaction process preparation synthesis, and consistency is high, and with temperature-stable
Electrostrictive strain.
Further, between 30 DEG C~120 DEG C, under 60kV/cm electric field action, low hysteresis Electrostrictive strain is maximum
Value is between 0.10%~0.12%, and change rate is less than 12%.
The method operating procedure of disclosure of the invention is simple, reproducible, low for equipment requirements, is suitble to amplification production.
Sodium niobate ferroelectric ceramic material disclosed by the invention can be applied to the high-precision for having high request to temperature stability
On driver, there is great economic value.
Detailed description of the invention
Fig. 1 is that electric field induced strain variation with temperature of the NN-0.13BT sample of embodiment 1 between 30 DEG C~120 DEG C is closed
It is curve；Wherein, a is 30 DEG C, and b is 60 DEG C, and c is 90 DEG C, and d is 120 DEG C；
Fig. 2 is that electric field induced strain variation with temperature of the NN-0.15BT sample of embodiment 2 between 30 DEG C~120 DEG C is closed
It is curve；Wherein, a is 30 DEG C, and b is 60 DEG C, and c is 90 DEG C, and d is 120 DEG C；
Fig. 3 a is the maximum strain variation with temperature relationship of embodiment 1 and embodiment 2；
Fig. 3 b is the maximum strain variation with temperature rate of embodiment 1 and embodiment 2.
Specific embodiment
Below with reference to specific embodiment, the present invention is described in further detail, it is described be explanation of the invention and
It is not to limit.
Embodiment 1
A kind of sodium niobate ferroelectric ceramic material with temperature-stable electric field induced strain, chemical composition are as follows:
0.87NaNbO3-0.13Ba0.85Ca0.15Zr0.1Ti0.9O3, it is abbreviated as NN-0.13BT, is denoted as sample 1, is labeled as #
1。
Above-mentioned sample 1 the preparation method is as follows:
1) according to chemical expression 0.87NaNbO3-0.13Ba0.85Ca0.15Zr0.1Ti0.9O3Weigh Na2CO3、Nb2O5、
BaCO3、CaCO3、ZrO2And TiO2.It is put into ball grinder after weighed raw material is mixed, ball milling solvent isopropanol and oxidation is added
Zirconium ball, ball milling 6 hours, rotational speed of ball-mill was 250 revs/min, then mixture is put into 80 DEG C of drying in baking oven, was ground being put into mortar
Mill crosses 80 meshes；In 1250 DEG C of progress pre-burnings in Muffle furnace, 6 hours are kept the temperature, room temperature is naturally cooled to, comes out of the stove；Ball again
Mill synthesizes 0.87NaNbO3-0.13Ba0.85Ca0.15Zr0.1Ti0.9O3。
2) 0.87NaNbO for synthesizing step 1)3-0.13Ba0.85Ca0.15Zr0.1Ti0.9O3Powder drying, then in mortar
In it is finely ground, cross 120 meshes, be added mass percent be 5% polyvinyl alcohol (PVA) solution, the PVA solution concentration be 5%, mix
It closes uniformly, sieving takes the powder between 60~100 mesh.
3) powder after being granulated in step 2) is stood 24 hours, then powder is put into the stainless steel mould that diameter is 8mm
In, cylindric blank is depressed in 250MPa pressure；
4) green body in step 3) is put into Muffle furnace, temperature rises to 600 DEG C, keeps the temperature 2 hours, carries out organic matter row
It removes；
5) green body after dumping in step 4) is put into crucible, covers, buries material with similar powder and bury burning, at 1450 DEG C
Middle sintering keeps the temperature 4 hours, with furnace cooled to room temperature；
6) potsherd burned in step 5) is polishing to a thickness of 0.8mm, naturally dry, the silver of lower surface coating on it
Slurry is placed in furnace and is warming up to 600 DEG C, keeps the temperature 20min, cooled to room temperature；The dielectric properties and strain property of test sample.
Referring to Fig. 1, full test electric field is 60kV/cm, test frequency 1Hz.As can be seen that NN-0.13BT sample is answered
Become S to increase with the increase of electric field, voltage from zero to maximum value again to zero during, strain curve shows very little
Hysteresis, electric field induced strain hysteresis degree is all < 10% at listed temperature.Meet the requirement of high-precision strain controlling.
Embodiment 2
A kind of sodium niobate ferroelectric ceramic material with temperature-stable electric field induced strain, chemical composition are as follows:
0.85NaNbO3-0.15Ba0.85Ca0.15Zr0.1Ti0.9O3, it is abbreviated as NN-0.15BT, is denoted as sample 2, is labeled as #
2。
Above-mentioned sample 2 the preparation method is as follows:
1) according to chemical expression 0.85NaNbO3-0.15Ba0.85Ca0.15Zr0.1Ti0.9O3Weigh Na2CO3、Nb2O5、
BaCO3、CaCO3、ZrO2And TiO2.It is put into ball grinder after weighed raw material is mixed, ball milling solvent isopropanol and oxidation is added
Zirconium ball, ball milling 6 hours, rotational speed of ball-mill was 250 revs/min, then mixture is put into 80 DEG C of drying in baking oven, was ground being put into mortar
Mill crosses 80 meshes；In 1250 DEG C of progress pre-burnings in Muffle furnace, 6 hours are kept the temperature, room temperature is naturally cooled to, comes out of the stove；Ball again
Mill synthesizes 0.85NaNbO3-0.15Ba0.85Ca0.15Zr0.1Ti0.9O3Powder.
2) 0.85NaNbO for synthesizing step 1)3-0.15Ba0.85Ca0.15Zr0.1Ti0.9O3After powder drying, in mortar
It is finely ground, 120 meshes are crossed, polyvinyl alcohol (PVA) solution that mass percent is 5% is added, which is 5%, and mixing is equal
Even, sieving takes the powder between 60~100 mesh.
3) powder after being granulated in step 2) is stood 24 hours, then powder is put into the stainless steel mould that diameter is 8mm
In, cylindric blank is depressed in 250MPa pressure；
4) green body in step 3) is put into Muffle furnace, temperature rises to 600 DEG C, keeps the temperature 2 hours, carries out organic matter row
It removes；
5) green body after dumping in step 4) is put into crucible, covers, buries material with similar powder and bury burning, at 1450 DEG C
Middle sintering keeps the temperature 4 hours, with furnace cooled to room temperature；
6) potsherd burned in step 5) is polishing to a thickness of 0.8mm, naturally dry, the silver of lower surface coating on it
Slurry is placed in furnace and is warming up to 600 DEG C, keeps the temperature 20min, cooled to room temperature；The dielectric properties and strain property of test sample.
Referring to fig. 2, full test electric field is 60kV/cm, test frequency 1Hz.As can be seen that NN-0.15BT sample is answered
Become S to increase with the increase of electric field, voltage from zero to maximum value again to zero during, strain curve shows very little
Hysteresis, electric field induced strain hysteresis degree is all < 10% at listed temperature.Meet the requirement of high-precision strain controlling.
It is sample 1 and sample 2 the maximum strain variation with temperature relationship between 30 DEG C~120 DEG C referring to Fig. 3 a, referring to
Fig. 3 b is sample 1 and sample 2 maximum strain variation with temperature rate, maximum value 0.12%, minimum value between 30 DEG C~120 DEG C
0.10%, change rate is less than 12%.
In conclusion present invention proposition is generated using the single phase structure of ferroelectric material with temperature-stable electric field induced strain
Thinking.As long as guaranteeing material Curie temperature with higher, then its emergent property should have below this temperature
Good temperature stability, because its polarization intensity has good temperature stability in the following wider range of this temperature.Base
In above-mentioned characteristic, it is high that the sodium niobate ferroelectric ceramics produced by the present invention with temperature-stable electric field induced strain can be applied to preparation
Precision microdrive field.
Claims (8)
1. a kind of sodium niobate ferroelectric ceramics with temperature-stable electric field induced strain, which is characterized in that the sodium niobate ferroelectric ceramics
Chemical composition be (1-x) NaNbO3-xBa0.85Ca0.15Zr0.1Ti0.9O3, wherein x=0.13~0.15.
2. the sodium niobate ferroelectric ceramics according to claim 1 with temperature-stable electric field induced strain, which is characterized in that should
Sodium niobate ferroelectric ceramics is between 30 DEG C~120 DEG C, and under 60kV/cm electric field action, low hysteresis Electrostrictive strain maximum value is
0.10%~0.12%, change rate is less than 12%.
3. a kind of preparation method of the sodium niobate ferroelectric ceramics with temperature-stable electric field induced strain, which is characterized in that including with
Lower step:
1) (1-x) NaNbO is pressed3-xBa0.85Ca0.15Zr0.1Ti0.9O3, the chemical composition of x=0.13~0.15 weighs raw material
Na2CO3、Nb2O5、BaCO3、CaCO3、ZrO2And TiO2；After weighed raw material is mixed through ball milling, dry, be ground up, sieved processing,
Then in 1250 DEG C of progress pre-burnings, 6h is kept the temperature, room temperature is naturally cooled to, comes out of the stove, again ball milling, synthesize NN-xBCZT powder；
2) the NN-xBCZT powder of step 1) synthesis dried, grinding, cross 120 meshes, NN-xBCZT powder quality 5% is added
Poly-vinyl alcohol solution is uniformly mixed, and sieving takes the powder between 60~100 mesh；
3) after standing powder made from step 2) for 24 hours, it is pressed into blank, blank is risen to 600 DEG C by room temperature, keeps the temperature 2h；
4) by step 3) treated blank sintering processes 4h at 1450 DEG C, room temperature is cooled to the furnace, being made has wide temperature
Stablize the sodium niobate ferroelectric ceramics of electric field induced strain.
4. the preparation method of the sodium niobate ferroelectric ceramics according to claim 3 with temperature-stable electric field induced strain,
It is characterized in that, in step 2), the concentration of poly-vinyl alcohol solution is 5%.
5. the preparation method of the sodium niobate ferroelectric ceramics according to claim 3 with temperature-stable electric field induced strain,
It is characterized in that, in step 3), is to be put into the powder after stewing process in the stainless steel mould that diameter is 8mm, is pressed in 250MPa
Cylindric blank is pressed under power.
6. the preparation method of the sodium niobate ferroelectric ceramics according to claim 3 with temperature-stable electric field induced strain,
It is characterized in that, in step 4), blank is put into crucible, cover, and use similar powder as material is buried and be sintered.
7. the preparation method of the sodium niobate ferroelectric ceramics according to claim 3 with temperature-stable electric field induced strain,
It is characterized in that, further includes the sodium niobate ferroelectric ceramics progress to obtained with temperature-stable electric field induced strain after step 4)
The operation of performance test, specifically: burned sodium niobate ferroelectric ceramics piece is polishing to a thickness of 0.8mm, naturally dry, at it
Upper and lower surface coats silver paste, is placed in furnace and is warming up to 600 DEG C, keeps the temperature 20min, and cooled to room temperature carries out dielectric properties and answers
Become performance test.
8. the sodium niobate ferroelectric ceramics of any of claims 1 or 2 with temperature-stable electric field induced strain is micro- in preparation high-precision
Application in driver.
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| CN113908869A (en) * | 2021-10-15 | 2022-01-11 | 安徽医科大学 | Preparation method of photocatalytic composite micro-driver |
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