CN104030683A - (K0.5Na0.5)NbO3-Sr(Sc0.5Nb0.5)O3 leadless transparent ferroelectric ceramic material and preparation method thereof - Google Patents
(K0.5Na0.5)NbO3-Sr(Sc0.5Nb0.5)O3 leadless transparent ferroelectric ceramic material and preparation method thereof Download PDFInfo
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- CN104030683A CN104030683A CN201410267915.9A CN201410267915A CN104030683A CN 104030683 A CN104030683 A CN 104030683A CN 201410267915 A CN201410267915 A CN 201410267915A CN 104030683 A CN104030683 A CN 104030683A
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Abstract
The invention discloses a (K0.5Na0.5)NbO3-Sr(Sc0.5Nb0.5)O3 leadless transparent ferroelectric ceramic material and a preparation method thereof. Through adding Sr(Sc0.5Nb0.5)O3, the grain size of (K0.5Na0.5)NbO3-based ceramics can be up to hundreds of nanometers which are basically same as the wavelength of visible light, and a ceramic sample has the transmittance of 60-70% within the ranges of visible light and near infrared rays and also has relatively high curie temperature and ferroelectric performance. The (K0.5Na0.5)NbO3-Sr(Sc0.5Nb0.5)O3 leadless transparent ferroelectric ceramic material has the stoichiometric ratio of (1-x), wherein 0.02<=x<=0.4. The preparation method of the (K0.5Na0.5)NbO3-Sr(Sc0.5Nb0.5)O3 leadless transparent ferroelectric ceramic material comprises the steps: proportioning; drying and grinding; carrying out secondary presintering; granulating; forming; sintering; and grinding and sintering a silver electrode to obtain the leadless transparent ferroelectric ceramic material with high optical transmittance, wherein the leadless transparent ferroelectric ceramic material can be used for improving the compact degree and optical transmittance of ceramics. The (K0.5Na0.5)NbO3-Sr(Sc0.5Nb0.5)O3 leadless transparent ferroelectric ceramic material has the advantages of simple preparation process and low preparation cost and is strong in practicability.
Description
Technical field
The invention belongs to function ceramics preparing technical field, relate to a kind of (K
0.5na
0.5) NbO
3-Sr (Sc
0.5nb
0.5) O
3unleaded transparent ferroelectric ceramics ceramic material and preparation method thereof.
Background technology
Transparent ferroelectric ceramics is that a kind of specific refractory power of ferroelectric material of utilizing, under electric field action, nonlinearities change occurs, thereby causes path difference on different crystallographic directions, realizes the controlled ferroelectric optical function material of optical strength voltage.Transparent ferroelectric ceramics has been widely used in preparing photoswitch, photomodulator, optical attenuator etc.Due to higher optical transmittance, high electro-optic coefficient, fast response speed and low production cost, lead base pottery is current most widely used transparent ferroelectric ceramics, such as, PLZT, PMN-PT, PZN-PT, PZN-PLZT etc.But because lead brings serious harm to the mankind and ecotope, many countries such as European Union, the U.S., Japan, China have formulated a plurality of decrees, the electronic product of stipulating all new productions should be all unleaded.But because present unleaded transparent ferroelectric ceramics also cannot reach the performance of lead base pottery, so can only temporarily continue to continue to use lead base transparent ferroelectric ceramics.But due to the demand of human kind sustainable development, high performance unleaded transparent ferroelectric ceramics will substitute lead base transparent ferroelectric ceramics.On the other hand, traditional lead base pottery need to adopt hot pressing and sintering technique, still, it is high that hot-pressing sintering technique has cost, and energy consumption is large, is difficult to prepare the shortcoming of complex-shaped sample, therefore, how to adopt pressureless sintering technology to prepare the study hotspot that transparent ferroelectric ceramics is also current ferroelectric field.
Potassium-sodium niobate (K
0.5na
0.5) NbO
3pottery is by ferroelectrics KNbO
3with antiferroelectric NaNbO
3the sosoloid forming.Because its theoretical density is low, Curie temperature is high, there is good piezoelectric property and mechanical property simultaneously and receive people's concern, be considered to have most the class-1 piezoelectric stupalith of potential application foreground.But, (K
0.5na
0.5) NbO
3base pottery is less as the research of unleaded transparent ferroelectric ceramics.About (K
0.5na
0.5) NbO
3the early-stage Study of base ceramic microstructures is found: at uhligite ABO
3in structure, the interpolation of A position ion has very large impact to its microtexture, and the interpolation of A position ion all can suppress (K
0.5na
0.5) NbO
3the grain-size growth of base pottery, by controlling the addition of A position ion, even can make (K
0.5na
0.5) NbO
3the grain-size of base pottery reaches hundreds of nanometer, and visible light wavelength is basic identical.According to the propagation law of light, when light runs into the crystal grain of such size, light will pass through by diffraction, scattering can not occur, and also will reduce the loss of luminous energy, just can greatly strengthen (K
0.5na
0.5) NbO
3the optical transmittance of base pottery.
Based on above analysis, designed (K
0.5na
0.5) NbO
3-Sr (Sc
0.5nb
0.5) O
3pottery.Result shows that this pottery has good transmitance, has the transmitance of 60-70%, and have good electrical property simultaneously in visible ray and near infrared range, is a kind of unleaded transparent ferroelectric ceramics of excellent property.
Summary of the invention
The object of the invention is to overcome the defect that above-mentioned technology exists, a kind of (K is provided
0.5na
0.5) NbO
3-Sr (Sc
0.5nb
0.5) O
3unleaded transparent ferroelectric ceramics ceramic material and preparation method thereof, prepares a kind of unleaded transparent ferroelectric ceramics with high light transmitance, is to prepare photoswitch, photomodulator, the preferred candidate materials of optical attenuator.Its concrete technical scheme is:
The present invention is by adding Sr (Sc
0.5nb
0.5) O
3make (K
0.5na
0.5) NbO
3the grain-size of pottery reduces to hundreds of nanometer, makes quadrature to the polycrystalline transformation temperature of Tetragonal, reduce as much as possible optical transmittance mutually and greatly improves, and keeps high ferroelectric properties and good electrical property temperature stability simultaneously.Starting material of the present invention comprise Anhydrous potassium carbonate, anhydrous sodium carbonate, Carbon Dioxide strontium, Niobium Pentxoxide and scandium oxide.
A kind of (K
0.5na
0.5) NbO
3-Sr (Sc
0.5nb
0.5) O
3unleaded transparent ferroelectric ceramics ceramic material, its chemical formula is (1-x) (K
0.5na
0.5) NbO
3-xSr (Sc
0.5nb
0.5) O
3, 0.02≤x≤0.4 wherein.
A kind of (K
0.5na
0.5) NbO
3-Sr (Sc
0.5nb
0.5) O
3the preparation method of unleaded transparent ferroelectric ceramics ceramic material, comprises the following steps:
1) by analytically pure Anhydrous potassium carbonate, anhydrous sodium carbonate, Carbon Dioxide strontium, Niobium Pentxoxide and scandium oxide in baking oven 150 ℃ dry 10 hours, by stoichiometric ratio, be (1-x) (K
0.5na
0.5) NbO
3-xSr (Sc
0.5nb
0.5) O
3batching;
2) raw material be take the ZrO that diameter is 2mm in dehydrated alcohol
2ball is medium planetary ball mill 24 hours, dries and obtains dry powder;
3) gained powder pre-burning 5 hours in 850～950 ℃ of air; The powder of pre-burning be take to the ZrO that diameter is 2mm in dehydrated alcohol
2ball is medium planetary ball mill 12 hours, dries and obtains dry powder; By the pre-burning 2 hours again in 850～950 ℃ of air of gained powder;
3) resulting powder take to the ZrO that diameter is 2mm in dehydrated alcohol
2ball is medium planetary ball mill 12 hours, after oven dry powder, adds polyvinyl alcohol granulation; Dry-pressing formed;
4) shaping biscuit is got rid of polyvinyl alcohol in 500-600 ℃ of air, after in 1100 ℃ of-1300 ℃ of air sintering 2-6 hour, obtain ceramic of compact sheet;
5) pottery obtaining is thick to 0.2-1.0mm with sand paper and the refine of grinding original text, the optical transmittance of test ceramics sample;
6) on the ceramics sample Double-side brush of a part being polished after silver slurry under 810 ℃ of conditions burning infiltration silver electrode; Carry out dielectric and ferrum property test.
Compared with prior art, beneficial effect of the present invention is: need to adopt hot pressed sintering to compare with plasma spark sintering technique with transparent ferroelectric ceramics in the past, this pottery adopts non-pressure sintering technology, has preparation technology simple, the advantage that preparation cost is low, has strong practicality.
Embodiment
Below in conjunction with specific embodiment, technical scheme of the present invention is described in more detail.
Embodiment mono-
The starting material of the present embodiment comprise Anhydrous potassium carbonate, anhydrous sodium carbonate, Carbon Dioxide strontium, Niobium Pentxoxide and scandium oxide, and its stoichiometric ratio is 0.98 (K
0.5na
0.5) NbO
3-0.02Sr (Sc
0.5nb
0.5) O
3.
The set-up procedure of the present embodiment is:
(1) analytically pure Anhydrous potassium carbonate, anhydrous sodium carbonate, Carbon Dioxide strontium, Niobium Pentxoxide and scandium oxide being placed under 150 ℃ of conditions and being dried 10 hours, is 0.98 (K by stoichiometric ratio
0.5na
0.5) NbO
3-0.02Sr (Sc
0.5nb
0.5) O
3.Batching.
(2) raw material in dehydrated alcohol with ZrO
2ball is medium planetary ball mill 24 hours, dries to grind to obtain dry powder.Gained powder is incubated to 5 hours in 950 ℃ of air, and preburning powdered material is again calcined 2 hours after 12 hours through planetary ball mill in 900 ℃ of air, grinds the powder that obtains having Perovskite Phase after sieving.
(3) by the powder of pre-burning in dehydrated alcohol again planetary ball mill within 12 hours, mix, after baking mixture material, add polyvinyl alcohol hand lapping granulation (60 mesh sieve), dry-pressing formed under 300MPa pressure is diameter 12mm, the disk base substrate of thickness 1.0mm.
(4) base substrate is slowly warming up to 550 ℃ in air, is incubated 2 hours and gets rid of PVA, then, by disk base substrate heat preservation sintering 5 hours in 1100 ℃ of air, obtain ceramic of compact sheet, measure the density of ceramic plate.
(5) pottery obtaining is thick to 0.5mm with sand paper and the refine of grinding original text, the optical transmittance of test ceramics sample;
(6) pottery obtaining is thick to 0.7mm with sand paper and the refine of grinding original text, on Double-side brush, after silver slurry, under 810 ℃ of conditions, be incubated 20min silver ink firing electrode, carry out electrical performance testing.
Adopt X-ray diffraction analyser (XRD) to determine crystalline structure and the phase structure of pre-burning powder and ceramics sample, by scanning electronic microscope (SEM), observe the microstructural alternative of ceramics sample.The volume density of ceramic sintered bodies, according to the measuring method of GB < < GB2412-81 > > piezoceramic material volume density, utilizes Archimedes' principle to measure.By Agilent4980A electric impedance analyzer, measure electromechanical coupling factor and Qm and the dielectric properties of the rear ceramics sample of polarization.
Performance is as shown in table 1.
Table 1
Embodiment bis-
The starting material of embodiment comprise Anhydrous potassium carbonate, anhydrous sodium carbonate, Carbon Dioxide strontium, Niobium Pentxoxide and scandium oxide, and its stoichiometric ratio is 0.94 (K
0.5na
0.5) NbO
3-0.06Sr (Sc
0.5nb
0.5) O
3.
The set-up procedure of the present embodiment is:
(1) analytically pure Anhydrous potassium carbonate, anhydrous sodium carbonate, Carbon Dioxide strontium, Niobium Pentxoxide and scandium oxide being placed under 150 ℃ of conditions and being dried 10 hours, is 0.94 (K by stoichiometric ratio
0.5na
0.5) NbO
3-0.06Sr (Sc
0.5nb
0.5) O
3.Batching.
(2) raw material in dehydrated alcohol with ZrO
2ball is medium planetary ball mill 24 hours, dries to grind to obtain dry powder.Gained powder is incubated to 5 hours in 950 ℃ of air, and preburning powdered material is again calcined 2 hours after 12 hours through planetary ball mill in 900 ℃ of air, grinds the powder that obtains having Perovskite Phase after sieving.
(3) by the powder of pre-burning in dehydrated alcohol again planetary ball mill within 12 hours, mix, after baking mixture material, add polyvinyl alcohol hand lapping granulation (60 mesh sieve), dry-pressing formed under 300MPa pressure is diameter 12mm, the disk base substrate of thickness 1.0mm.
(4) base substrate is slowly warming up in air to 550 ℃ of insulations and within 2 hours, gets rid of PVA, then, by disk base substrate heat preservation sintering 5 hours in 1100 ℃ of air, obtain ceramic of compact sheet, measure the density of ceramic plate.
(5) pottery obtaining is thick to 0.5mm with sand paper and the refine of grinding original text, the optical transmittance of test ceramics sample;
(6) pottery obtaining is thick to 0.7mm with sand paper and the refine of grinding original text, on Double-side brush, after silver slurry, under 810 ℃ of conditions, be incubated 20min silver ink firing electrode, carry out electrical performance testing.
Microscope (SEM) is observed the microstructural alternative of ceramics sample.The volume density of ceramic sintered bodies, according to the measuring method of GB < < GB2412-81 > > piezoceramic material volume density, utilizes Archimedes' principle to measure.By Agilent4980A electric impedance analyzer, measure electromechanical coupling factor and Qm and the dielectric properties of the rear ceramics sample of polarization.
Performance adopts X-ray diffraction analyser (XRD) to determine crystalline structure and the phase structure of pre-burning powder and ceramics sample, with scanning electron, specifically as shown in table 2.
Table 2
Embodiment tri-
The starting material of embodiment comprise Anhydrous potassium carbonate, anhydrous sodium carbonate, Carbon Dioxide strontium, Niobium Pentxoxide and scandium oxide, and its stoichiometric ratio is 0.9 (K
0.5na
0.5) NbO
3-0.1Sr (Sc
0.5nb
0.5) O
3.
The set-up procedure of the present embodiment is:
(1) analytically pure Anhydrous potassium carbonate, anhydrous sodium carbonate, Carbon Dioxide strontium, Niobium Pentxoxide and scandium oxide being placed under 150 ℃ of conditions and being dried 10 hours, is 0.9 (K by stoichiometric ratio
0.5na
0.5) NbO
3-0.1Sr (Sc
0.5nb
0.5) O
3.Batching.
(2) raw material in dehydrated alcohol with ZrO
2ball is medium planetary ball mill 24 hours, dries to grind to obtain dry powder.Gained powder is incubated to 5 hours in 950 ℃ of air, and preburning powdered material is again calcined 2 hours after 12 hours through planetary ball mill in 900 ℃ of air, grinds the powder that obtains having Perovskite Phase after sieving.
(3) by the powder of pre-burning in dehydrated alcohol again planetary ball mill within 12 hours, mix, after baking mixture material, add polyvinyl alcohol hand lapping granulation (60 mesh sieve), dry-pressing formed under 300MPa pressure is diameter 12mm, the disk base substrate of thickness 1.0mm.
(4) base substrate is slowly warming up in air to 550 ℃ of insulations and within 2 hours, gets rid of PVA, then, by disk base substrate heat preservation sintering 5 hours in 1100 ℃ of air, obtain ceramic of compact sheet, measure the density of ceramic plate.
(5) pottery obtaining is thick to 0.5mm with sand paper and the refine of grinding original text, the optical transmittance of test ceramics sample;
(6) pottery obtaining is thick to 0.7mm with sand paper and the refine of grinding original text, on Double-side brush, after silver slurry, under 810 ℃ of conditions, be incubated 20min silver ink firing electrode, carry out electrical performance testing.
Adopt X-ray diffraction analyser (XRD) to determine crystalline structure and the phase structure of pre-burning powder and ceramics sample, by scanning electronic microscope (SEM), observe the microstructural alternative of ceramics sample.The volume density of ceramic sintered bodies, according to the measuring method of GB < < GB2412-81 > > piezoceramic material volume density, utilizes Archimedes' principle to measure.By Agilent4980A electric impedance analyzer, measure electromechanical coupling factor and Qm and the dielectric properties of the rear ceramics sample of polarization.
Performance is as shown in table 3.
Table 3
Embodiment tetra-
The starting material of embodiment comprise Anhydrous potassium carbonate, anhydrous sodium carbonate, Carbon Dioxide strontium, Niobium Pentxoxide and scandium oxide, and its stoichiometric ratio is 0.8 (K
0.5na
0.5) NbO
3-0.2Sr (Sc
0.5nb
0.5) O
3.
The set-up procedure of the present embodiment is:
(1) analytically pure Anhydrous potassium carbonate, anhydrous sodium carbonate, Carbon Dioxide strontium, Niobium Pentxoxide and scandium oxide being placed under 150 ℃ of conditions and being dried 10 hours, is 0.8 (K by stoichiometric ratio
0.5na
0.5) NbO
3-0.2Sr (Sc
0.5nb
0.5) O
3.Batching.
(2) raw material in dehydrated alcohol with ZrO
2ball is medium planetary ball mill 24 hours, dries to grind to obtain dry powder.Gained powder is incubated to 5 hours in 950 ℃ of air, and preburning powdered material is again calcined 2 hours after 12 hours through planetary ball mill in 900 ℃ of air, grinds the powder that obtains having Perovskite Phase after sieving.
(3) by the powder of pre-burning in dehydrated alcohol again planetary ball mill within 12 hours, mix, after baking mixture material, add polyvinyl alcohol hand lapping granulation (60 mesh sieve), dry-pressing formed under 300MPa pressure is diameter 12mm, the disk base substrate of thickness 1.0mm.
(4) base substrate is slowly warming up in air to 550 ℃ of insulations and within 2 hours, gets rid of PVA, then, by disk base substrate heat preservation sintering 5 hours in 1100 ℃ of air, obtain ceramic of compact sheet, measure the density of ceramic plate.
(5) pottery obtaining is thick to 0.5mm with sand paper and the refine of grinding original text, the optical transmittance of test ceramics sample;
(6) pottery obtaining is thick to 0.7mm with sand paper and the refine of grinding original text, on Double-side brush, after silver slurry, under 810 ℃ of conditions, be incubated 20min silver ink firing electrode, carry out electrical performance testing.
Testing method is with embodiment mono-, and performance is as shown in table 4.
Table 4
Embodiment five
The starting material of embodiment comprise Anhydrous potassium carbonate, anhydrous sodium carbonate, Carbon Dioxide strontium, Niobium Pentxoxide and scandium oxide, and its stoichiometric ratio is 0.7 (K
0.5na
0.5) NbO
3-0.3Sr (Sc
0.5nb
0.5) O
3.
The set-up procedure of the present embodiment is:
(1) analytically pure Anhydrous potassium carbonate, anhydrous sodium carbonate, Carbon Dioxide strontium, Niobium Pentxoxide and scandium oxide being placed under 150 ℃ of conditions and being dried 10 hours, is 0.8 (K by stoichiometric ratio
0.5na
0.5) NbO
3-0.2Sr (Sc
0.5nb
0.5) O
3.Batching.
(2) raw material in dehydrated alcohol with ZrO
2ball is medium planetary ball mill 24 hours, dries to grind to obtain dry powder.Gained powder is incubated to 5 hours in 950 ℃ of air, and preburning powdered material is again calcined 2 hours after 12 hours through planetary ball mill in 900 ℃ of air, grinds the powder that obtains having Perovskite Phase after sieving.
(3) by the powder of pre-burning in dehydrated alcohol again planetary ball mill within 12 hours, mix, after baking mixture material, add polyvinyl alcohol hand lapping granulation (60 mesh sieve), dry-pressing formed under 300MPa pressure is diameter 12mm, the disk base substrate of thickness 1.0mm.
(4) base substrate is slowly warming up in air to 550 ℃ of insulations and within 2 hours, gets rid of PVA, then, by disk base substrate heat preservation sintering 5 hours in 1100 ℃ of air, obtain ceramic of compact sheet, measure the density of ceramic plate.
(5) pottery obtaining is thick to 0.5mm with sand paper and the refine of grinding original text, the optical transmittance of test ceramics sample;
(6) pottery obtaining is thick to 0.7mm with sand paper and the refine of grinding original text, on Double-side brush, after silver slurry, under 810 ℃ of conditions, be incubated 20min silver ink firing electrode, carry out electrical performance testing.
Testing method is with embodiment mono-, and performance is as shown in table 5.
Table 5
Embodiment six
The starting material of embodiment comprise Anhydrous potassium carbonate, anhydrous sodium carbonate, Carbon Dioxide strontium, Niobium Pentxoxide and scandium oxide, and its stoichiometric ratio is 0.6 (K
0.5na
0.5) NbO
3-0.4Sr (Sc
0.5nb
0.5) O
3.
The set-up procedure of the present embodiment is:
(1) analytically pure Anhydrous potassium carbonate, anhydrous sodium carbonate, Carbon Dioxide strontium, Niobium Pentxoxide and scandium oxide being placed under 150 ℃ of conditions and being dried 10 hours, is 0.8 (K by stoichiometric ratio
0.5na
0.5) NbO
3-0.2Sr (Sc
0.5nb
0.5) O
3.Batching.
(2) raw material in dehydrated alcohol with ZrO
2ball is medium planetary ball mill 24 hours, dries to grind to obtain dry powder.Gained powder is incubated to 5 hours in 950 ℃ of air, and preburning powdered material is again calcined 2 hours after 12 hours through planetary ball mill in 900 ℃ of air, grinds the powder that obtains having Perovskite Phase after sieving.
(3) by the powder of pre-burning in dehydrated alcohol again planetary ball mill within 12 hours, mix, after baking mixture material, add polyvinyl alcohol hand lapping granulation (60 mesh sieve), dry-pressing formed under 300MPa pressure is diameter 12mm, the disk base substrate of thickness 1.0mm.
(4) base substrate is slowly warming up in air to 550 ℃ of insulations and within 2 hours, gets rid of PVA, then, by disk base substrate heat preservation sintering 5 hours in 1100 ℃ of air, obtain ceramic of compact sheet, measure the density of ceramic plate.
(5) pottery obtaining is thick to 0.5mm with sand paper and the refine of grinding original text, the optical transmittance of test ceramics sample;
(6) pottery obtaining is thick to 0.7mm with sand paper and the refine of grinding original text, on Double-side brush, after silver slurry, under 810 ℃ of conditions, be incubated 20min silver ink firing electrode, carry out electrical performance testing.
Testing method is with embodiment mono-, and performance is as shown in table 6.
Table 6
The above; it is only preferably embodiment of the present invention; protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses, the simple change of the technical scheme that can obtain apparently or equivalence are replaced and are all fallen within the scope of protection of the present invention.
Claims (2)
1. (a K
0.5na
0.5) NbO
3-Sr (Sc
0.5nb
0.5) O
3unleaded transparent ferroelectric ceramics ceramic material, is characterized in that, its chemical formula is (1-x) (K
0.5na
0.5) NbO
3-xSr (Sc
0.5nb
0.5) O
3, 0.02≤x≤0.4 wherein.
2. (a K
0.5na
0.5) NbO
3-Sr (Sc
0.5nb
0.5) O
3the preparation method of unleaded transparent ferroelectric ceramics ceramic material, is characterized in that, comprises the following steps:
1) by analytically pure Anhydrous potassium carbonate, anhydrous sodium carbonate, Carbon Dioxide strontium, Niobium Pentxoxide and scandium oxide in baking oven 150 ℃ dry 10 hours, by stoichiometric ratio, be (1-x) (K
0.5na
0.5) NbO
3-xSr (Sc
0.5nb
0.5) O
3batching;
2) raw material be take the ZrO that diameter is 2mm in dehydrated alcohol
2ball is medium planetary ball mill 24 hours, dries and obtains dry powder;
3) gained powder pre-burning 5 hours in 850～950 ℃ of air; The powder of pre-burning be take to the ZrO that diameter is 2mm in dehydrated alcohol
2ball is medium planetary ball mill 12 hours, dries and obtains dry powder; By the pre-burning 2 hours again in 850～950 ℃ of air of gained powder;
3) resulting powder take to the ZrO that diameter is 2mm in dehydrated alcohol
2ball is medium planetary ball mill 12 hours, after oven dry powder, adds polyvinyl alcohol granulation; Dry-pressing formed;
4) shaping biscuit is got rid of polyvinyl alcohol in 500-600 ℃ of air, after in 1100 ℃ of-1300 ℃ of air sintering 2-6 hour, obtain ceramic of compact sheet;
5) pottery obtaining is thick to 0.2-1.0mm with sand paper and the refine of grinding original text, the optical transmittance of test ceramics sample;
6) on the ceramics sample Double-side brush of a part being polished after silver slurry under 810 ℃ of conditions burning infiltration silver electrode; Carry out dielectric and ferrum property test.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105174955A (en) * | 2015-09-08 | 2015-12-23 | 中国人民解放军空军工程大学 | Ceramic material with high energy storage density and energy storage efficiency and preparation method thereof |
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| CN111099896A (en) * | 2020-01-23 | 2020-05-05 | 福州大学 | Dysprosium-doped potassium sodium niobate-based transparent ceramic for white light LED and preparation method thereof |
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| CN113121226A (en) * | 2021-04-30 | 2021-07-16 | 桂林电子科技大学 | Optical dielectric ferroelectric ceramic material and preparation method and application thereof |
| CN114507901A (en) * | 2021-12-30 | 2022-05-17 | 山东大学 | Nonlinear optical device comprising potassium-sodium niobate single crystal |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104098333A (en) * | 2014-06-05 | 2014-10-15 | 中国人民解放军空军工程大学 | (K0.5Na0.5)NbO3-Sr(Sc0.5Nb0.5)O3 lead-free transparent ferroelectric ceramic material and preparation method thereof |
-
2014
- 2014-06-12 CN CN201410267915.9A patent/CN104030683A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104098333A (en) * | 2014-06-05 | 2014-10-15 | 中国人民解放军空军工程大学 | (K0.5Na0.5)NbO3-Sr(Sc0.5Nb0.5)O3 lead-free transparent ferroelectric ceramic material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105174955A (en) * | 2015-09-08 | 2015-12-23 | 中国人民解放军空军工程大学 | Ceramic material with high energy storage density and energy storage efficiency and preparation method thereof |
| CN105174955B (en) * | 2015-09-08 | 2018-05-18 | 中国人民解放军空军工程大学 | A kind of ceramic material with high energy storage density and energy storage efficiency and preparation method thereof |
| CN108863358A (en) * | 2018-07-11 | 2018-11-23 | 桂林电子科技大学 | A kind of temperature-stable type ceramic capacitor dielectric material and preparation method thereof |
| CN108863358B (en) * | 2018-07-11 | 2021-04-06 | 桂林电子科技大学 | Wide-temperature-stability type ceramic capacitor dielectric material and preparation method thereof |
| CN111099896A (en) * | 2020-01-23 | 2020-05-05 | 福州大学 | Dysprosium-doped potassium sodium niobate-based transparent ceramic for white light LED and preparation method thereof |
| CN112830781A (en) * | 2021-01-19 | 2021-05-25 | 桂林电子科技大学 | Lead-free transparent ferroelectric ceramic material and preparation method and application thereof |
| CN112830781B (en) * | 2021-01-19 | 2022-10-28 | 桂林电子科技大学 | Lead-free transparent ferroelectric ceramic material and preparation method and application thereof |
| CN113121226A (en) * | 2021-04-30 | 2021-07-16 | 桂林电子科技大学 | Optical dielectric ferroelectric ceramic material and preparation method and application thereof |
| CN113121226B (en) * | 2021-04-30 | 2022-06-24 | 桂林电子科技大学 | Optical dielectric ferroelectric ceramic material and preparation method and application thereof |
| CN114507901A (en) * | 2021-12-30 | 2022-05-17 | 山东大学 | Nonlinear optical device comprising potassium-sodium niobate single crystal |
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