CN108516823B - Lead-free ferroelectric ceramic material with large piezoelectric strain and calendaring performance and preparation method thereof - Google Patents
Lead-free ferroelectric ceramic material with large piezoelectric strain and calendaring performance and preparation method thereof Download PDFInfo
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- 238000003490 calendering Methods 0.000 title claims abstract description 16
- 229910002112 ferroelectric ceramic material Inorganic materials 0.000 title claims abstract description 15
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 238000003801 milling Methods 0.000 claims description 9
- 239000002994 raw material Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 6
- 238000000498 ball milling Methods 0.000 claims description 6
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 claims description 6
- WMWLMWRWZQELOS-UHFFFAOYSA-N bismuth(iii) oxide Chemical compound O=[Bi]O[Bi]=O WMWLMWRWZQELOS-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 239000006104 solid solution Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910002637 Pr6O11 Inorganic materials 0.000 claims description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 3
- 238000009694 cold isostatic pressing Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- CMIHHWBVHJVIGI-UHFFFAOYSA-N gadolinium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Gd+3].[Gd+3] CMIHHWBVHJVIGI-UHFFFAOYSA-N 0.000 claims description 3
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 3
- 229910052573 porcelain Inorganic materials 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- PBCFLUZVCVVTBY-UHFFFAOYSA-N tantalum pentoxide Inorganic materials O=[Ta](=O)O[Ta](=O)=O PBCFLUZVCVVTBY-UHFFFAOYSA-N 0.000 claims description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 6
- 238000009776 industrial production Methods 0.000 abstract description 4
- 229910010293 ceramic material Inorganic materials 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 abstract description 2
- 238000005245 sintering Methods 0.000 abstract 1
- 229910002115 bismuth titanate Inorganic materials 0.000 description 5
- 239000011734 sodium Substances 0.000 description 4
- FSAJRXGMUISOIW-UHFFFAOYSA-N bismuth sodium Chemical compound [Na].[Bi] FSAJRXGMUISOIW-UHFFFAOYSA-N 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000012984 biological imaging Methods 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000002796 luminescence method Methods 0.000 description 1
- 238000001748 luminescence spectrum Methods 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000009768 microwave sintering Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
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Abstract
The invention discloses a leadless ferroelectric ceramic material with large piezoelectric strain and calendaring performance and a preparation method thereof, wherein the ceramic material comprises the following components: 0.9 (Bi)0.5Na0.5)0.689(Ba0.5Ca0.5)0.3Pr0.01Gd0.001TiO3‑0.1Ca2Ta2O7. The product is prepared by microwave rapid sintering, and has very excellent piezoelectric strain property, calendaring property and maximum piezoelectric strain coefficient through experimental measurement
Description
Technical Field
The invention relates to a strain-driven and stress-luminescent lead-free ferroelectric ceramic material, in particular to an ABO3A perovskite structure, a sodium bismuth titanate (BNT) based lead-free ferroelectric ceramic material with large piezoelectric strain and calendaring light-emitting performance and a preparation method thereof.
Background
The stress luminescent material has potential application prospect in the fields of stress sensors, display phenomena, biological imaging and the like, and gradually draws attention of people. The elastic stress luminescent material has the characteristics of non-destructiveness, repeatability and force-light dependence, and has obvious advantages in the aspects of stress sensors, stress distribution visualization, display phenomena, biological imaging and the like, and the elastic stress luminescent material is the most important stress luminescent material in the stress luminescent materials.
The ferroelectric ceramic generates piezoelectric strain under the action of electric field, and can be used as driver and micrometric displacement measuring instrument. Therefore, the ferroelectric ceramic material can be used for regulating and controlling the light-emitting performance by utilizing the stress of the ferroelectric ceramic material, and is expected to be used for a piezoelectric-calendaring light-emitting dual-function device due to the piezoelectric strain characteristic. At present, the bismuth sodium titanate (BNT) based ceramics simultaneously have piezoelectric-calendaring luminescence double-function performances, and few reports are available.
Disclosure of Invention
The invention aims to provide an ABO3Sodium bismuth titanate (BNT) based lead-free ferroelectric ceramic material with perovskite structure and double functions of piezoelectricity-calendaring luminescence and preparation method thereof, the ceramic material has excellent performance and maximum piezoelectric strain coefficient
=353pm/V, the wavelength of light is 612nm under 1000N stress, the process is simple, the cost is low, and the method is suitable for large-scale industrial production.
The invention relates to a lead-free ferroelectric ceramic material with large piezoelectric strain and calendaring performance, which comprises the following components:
0.9(Bi0.5Na0.5)0.689(Ba0.5Ca0.5)0.3Pr0.01Gd0.001TiO3-0.1Ca2Ta2O7。
the preparation method of the lead-free ferroelectric ceramic material with large piezoelectric strain and calendaring performance adopts a microwave sintering method and comprises the following steps:
(1) according to 0.9 (Bi)0.5Na0.5)0.689(Ba0.5Ca0.5)0.3Pr0.01Gd0.001TiO3-0.1Ca2Ta2O7Chemical meter
Separately weighing and analyzing pure raw material Bi2O3、BaCO3、CaCO3、Pr6O11、Ta2O5、Na2CO3、Gd2O3And TiO2Putting the mixture into a ball milling tank, fully mixing and ball milling the mixture for 24 hours by taking zirconium oxide as a milling ball and absolute ethyl alcohol as a milling medium, separating the milling ball, and drying the raw materials at 60 ℃;
(2) pressing the dried powder into a large block blank, putting the blank into a high-aluminum crucible to cover, and keeping the temperature at 950 ℃ for 2 hours to obtain a blank
Forming a solid solution;
(3) carrying out cold isostatic pressing on the synthesized solid solution at 100 MPa;
(4) the formed raw materials are sintered by microwave, heated to 1230 ℃ and kept for 120 minutes, and then sintered into porcelain;
(5) the sintered sample is processed into a thin sheet with smooth two sides and the thickness of about 0.5mm, and the two-side silver-plated electrode is prepared into the lead-free ferroelectric ceramic material with large piezoelectric strain and calendaring performance.
The prepared product has excellent piezoelectric strain property and calendaring property and maximum piezoelectric strain coefficient through experimental measurement
=353pm/V, the wavelength of light is 612nm under 1000N stress, the preparation process is simple, the cost is low, and the method is suitable for large-scale industrial production.
Detailed Description
The present invention will be further described with reference to the following examples, but the present invention is not limited thereto.
Examples
A leadless ferroelectric ceramic material with large piezoelectric strain and calendaring performance comprises the following components:
0.9(Bi0.5Na0.5)0.689(Ba0.5Ca0.5)0.3Pr0.01Gd0.001TiO3-0.1Ca2Ta2O7。
the preparation method of the lead-free ferroelectric ceramic material with large piezoelectric strain and calendaring performance comprises the following steps:
(1) according to 0.9 (Bi)0.5Na0.5)0.689(Ba0.5Ca0.5)0.3Pr0.01Gd0.001TiO3-0.1Ca2Ta2O7Chemical meter
Separately weighing and analyzing pure raw material Bi2O3、BaCO3、CaCO3、Pr6O11、Ta2O5、Na2CO3、Gd2O3And TiO2Putting the mixture into a ball milling tank, fully mixing and ball milling the mixture for 24 hours by taking zirconium oxide as a milling ball and absolute ethyl alcohol as a milling medium, separating the milling ball, and drying the raw materials at 60 ℃;
(2) pressing the dried powder into a large block blank, putting the blank into a high-aluminum crucible to cover, and keeping the temperature at 950 ℃ for 2 hours to obtain a blank
Forming a solid solution;
(3) carrying out cold isostatic pressing on the synthesized solid solution at 100 MPa;
(4) the formed raw materials are sintered by microwave, heated to 1230 ℃ and kept for 120 minutes, and then sintered into porcelain;
(5) processing the sintered sample into a sheet with two smooth surfaces and a thickness of about 0.5mm, and plating silver electrodes on the two surfaces to obtain the finished product;
(6) rolling the sintered ceramic into powder, sieving the powder by a 300-mesh sieve, and mixing the powder and transparent epoxy resin according to the weight ratio of 1:9 to prepare a wafer with the diameter of 25 mm and the thickness of 15 mm;
(7) and (3) measuring the piezoelectric strain performance of the step (5) by using a ferroelectric tester, and measuring the luminescence spectrum of the sample of the step (6) under different stresses by using a fluorescence spectrophotometer.
The maximum piezoelectric strain coefficient of the prepared product is measured by experiments
=353pm/V, the wavelength of light is 612nm under 1000N stress, the preparation process is simple, the cost is low, and the method is suitable for large-scale industrial production.
The contents of the present invention will be further clarified by the examples given above, but they are not intended to limit the present invention.
Claims (1)
1. A preparation method of a lead-free ferroelectric ceramic material with large piezoelectric strain and calendaring performance is characterized by comprising the following steps:
the material comprises the following components: 0.9 (Bi)0.5Na0.5)0.689(Ba0.5Ca0.5)0.3Pr0.01Gd0.001TiO3-0.1Ca2Ta2O7；
The preparation method of the material comprises the following steps:
(1) according to 0.9 (Bi)0.5Na0.5)0.689(Ba0.5Ca0.5)0.3Pr0.01Gd0.001TiO3-0.1Ca2Ta2O7Chemical meter
Separately weighing and analyzing pure raw material Bi2O3、BaCO3、CaCO3、Pr6O11、Ta2O5、Na2CO3、Gd2O3And TiO2Putting the mixture into a ball milling tank, fully mixing and ball milling the mixture for 24 hours by taking zirconium oxide as a milling ball and absolute ethyl alcohol as a milling medium, separating the milling ball, and drying the raw materials at 60 ℃;
(2) pressing the dried powder into a large green body, putting the green body into a high-alumina crucible, covering the crucible, and preserving the heat at 950 ℃ for 2 hours to synthesize a solid solution;
(3) carrying out cold isostatic pressing on the synthesized solid solution at 100 MPa;
(4) the formed raw materials are sintered by microwave, heated to 1230 ℃ and kept for 120 minutes, and then sintered into porcelain;
(5) the sintered sample is processed into a sheet with smooth two sides, and the two-side silver-plated electrode is prepared into the lead-free ferroelectric ceramic material with large piezoelectric strain and calendaring performance.
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Application publication date: 20180911 Assignee: Guilin Sensing Material Technology Co.,Ltd. Assignor: GUILIN University OF ELECTRONIC TECHNOLOGY Contract record no.: X2022450000575 Denomination of invention: A lead-free ferroelectric ceramic material with large piezoelectric strain and piezoelectric properties and its preparation method Granted publication date: 20200925 License type: Common License Record date: 20221230 |
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