CN108706971A - 一种具有大压电应变记忆特性的无铅铁电陶瓷材料及其制备方法 - Google Patents
一种具有大压电应变记忆特性的无铅铁电陶瓷材料及其制备方法 Download PDFInfo
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- 239000000919 ceramic Substances 0.000 title claims abstract description 19
- 239000000463 material Substances 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 title abstract description 6
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910012985 LiVO3 Inorganic materials 0.000 claims abstract description 7
- 229910010252 TiO3 Inorganic materials 0.000 claims abstract description 7
- 238000001816 cooling Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000009768 microwave sintering Methods 0.000 claims abstract description 4
- 239000002994 raw material Substances 0.000 claims description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 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
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000000498 ball milling Methods 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
- 239000006104 solid solution Substances 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 238000004321 preservation Methods 0.000 claims description 4
- 238000003786 synthesis reaction Methods 0.000 claims description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 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 description 3
- 238000004458 analytical method Methods 0.000 claims description 3
- 238000005056 compaction Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 235000019441 ethanol Nutrition 0.000 claims description 3
- 229910052808 lithium carbonate Inorganic materials 0.000 claims description 3
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 claims description 3
- 238000000465 moulding Methods 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
- 239000000843 powder Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 3
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 3
- 229910010293 ceramic material Inorganic materials 0.000 claims description 2
- 230000003446 memory effect Effects 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 5
- 238000009776 industrial production Methods 0.000 abstract description 4
- 238000002474 experimental method Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 5
- 239000011734 sodium Substances 0.000 description 5
- FSAJRXGMUISOIW-UHFFFAOYSA-N bismuth sodium Chemical group [Na].[Bi] FSAJRXGMUISOIW-UHFFFAOYSA-N 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229910002115 bismuth titanate Inorganic materials 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005621 ferroelectricity Effects 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
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- C04B35/46—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 titanium oxides or titanates
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Abstract
本发明公开了一种具有大压电应变记忆特性的无铅铁电陶瓷材料及其制备方法，该陶瓷材料组成为：Bi0.53Na0.5TiO3+0.05wt%LiVO3+0.1wt%MnO2。用微波快速烧结结合快速水冷制得，产品经实验测量，具有非常优异的压电应变记忆特性，最大压电应变记忆效应ΔS=0.46%，工艺简单，成本低廉，适合大规模工业生产。
Description
技术领域
本发明涉及应变驱动用的无铅铁电陶瓷材料，具体是一种ABO3型钙钛矿结构，具有大压电应变记忆特性的钛酸铋钠(BNT)基无铅铁电陶瓷材料及其制备方法。
背景技术
铁电材料具有压电性、介电性、热释电性、光电效应、声光效应、光折变效应以及非线性光学效应等众多性能，可用于制备换能器、微位移器、传感器、谐振器及滤波器等一系列电子元件。是一种不可或缺的高技术新材料之一。由于铅的污染问题，许多国家与地区通过法律、法规、政府指令等形式对含铅电子产品加以禁止，高性能无铅铁电材料的研究是当前非常迫切解决的问题。
铁电陶瓷在电场作用下产生压电应变，可以用来作为驱动器，微位移测量仪。但是，这种应变在电场撤消后消失，不能持续产生驱动。在一些特殊的应用场合，需要再施加一次电场后，能产生永久的驱动力，这种器件的应用需要大的压电应变记忆效应。钛酸铋钠(BNT)基无铅陶瓷具有较强的铁电性，非常具有开发潜力，是获得广泛关注的材料之一。目前钛酸铋钠(BNT)基的压电应变记忆效应还很少报道。
发明内容
本发明的目的是提供一种ABO3型钙钛矿结构，具有大压电应变记忆效应的钛酸铋钠(BNT)基无铅铁电陶瓷材料及其制备方法，该陶瓷材料性能优异，最大压电应变记忆效应ΔS=0.46%，工艺简单，成本低廉，适合大规模工业生产。
本发明具有大压电应变记忆效应的无铅铁电陶瓷材料，组成为：
Bi0.53Na0.5TiO3+0.05wt%LiVO3+0.1wt%MnO2。
上述具有大压电应变记忆效应的无铅铁电陶瓷材料的制备方法，采用微波陶瓷烧结法，结合水冷快速冷却速度，具体包括如下步骤：
（1）按照Bi0.53Na0.5TiO3+0.05wt%LiVO3+0.1wt%MnO2的化学计量分别称取分
析纯原料Bi2O3、Li2CO3、V2O5、Na2CO3、MnO2和TiO2，装入球磨罐中，以氧化锆为磨球、无水乙醇为球磨介质，充分混合球磨24小时，分离磨球，将原料在60℃烘干；
（2）烘干后的粉料压制成大块坯体，放入高铝坩埚加盖，于820℃保温2小时合
成固溶体；
（3）将合成的固溶体在100Mpa冷等静压成型；
（4）成型的原料采用微波烧结，30℃/min快速升温至1080℃保温80分钟，烧结成瓷，然后取出样品快速水冷至室温；
（5）烧结后的样品加工成两面光滑、厚度约0.5mm的薄片，两面镀银电极制备成具有大压电应变记忆特性的无铅铁电陶瓷材料。
所得产品经实验测量，具有优良的压电应变记忆效应，最大压电应变记忆效应ΔS=0.46%，绿色环保，工艺简单，成本低，适合工业生产。
附图说明
图1为本发明无铅铁电陶瓷应变曲线及压电应变记忆效应图。
具体实施方式
下面结合实施例和附图对本发明内容作进一步的说明，但不是对本发明的限定。
实施例
一种具有大压电应变记忆效应的无铅铁电陶瓷材料，组成为：
Bi0.53Na0.5TiO3+0.05wt%LiVO3+0.1wt%MnO2。
制备上述具有大压电应变记忆特性的无铅铁电陶瓷材料，步骤如下：
（1）按照Bi0.53Na0.5TiO3+0.05wt%LiVO3+0.1wt%MnO2的化学计量分别称取分
析纯原料Bi2O3、Li2CO3、V2O5、Na2CO3、MnO2和TiO2，装入球磨罐中，以氧化锆为磨球、无水乙醇为球磨介质，充分混合球磨24小时，分离磨球，将原料在60℃烘干；
（2）烘干后的粉料压制成大块坯体，放入高铝坩埚加盖，于820℃保温2小时合
成固溶体；
（3）将合成的固溶体在100Mpa冷等静压成型；
（4）成型的原料采用微波烧结，30℃/min快速升温至1080℃保温80分钟烧结成瓷，然后取出样品快速水冷至室温；
（5）烧结后的样品加工成两面光滑、厚度约0.5mm的薄片，两面镀银电极制备成具有大压电应变记忆特性的无铅铁电陶瓷材料。
参照图1，所得产品经实验测量，具有优良的压电应变记忆效应，最大压电应变记忆效应ΔS=0.46%，绿色环保，工艺简单，成本低，适合工业生产。
通过上面给出的实施例，可以进一步清楚的了解本发明的内容，但它们不是对本发明的限定。
Claims (2)
1.一种具有大压电应变记忆特性的无铅铁电陶瓷材料，其特征在于：该陶瓷材料组成为：Bi0.53Na0.5TiO3+0.05wt%LiVO3+0.1wt%MnO2。
2.根据权利要求1所述的具有大压电应变记忆特性的无铅铁电陶瓷材料，其特征在于，包括如下步骤：
（1）按照Bi0.53Na0.5TiO3+0.05wt%LiVO3+0.1wt%MnO2的化学计量分别称取分
析纯原料Bi2O3、Li2CO3、V2O5、Na2CO3、MnO2和TiO2，装入球磨罐中，以氧化锆为磨球、无水乙醇为球磨介质，充分混合球磨24小时，分离磨球，将原料在60℃烘干；
（2）烘干后的粉料压制成大块坯体，放入高铝坩埚中加盖，于820℃保温2小时合成固溶体；
（3）将合成的固溶体在100Mpa冷等静压成型；
（4）成型的原料采用微波烧结，以30℃/min快速升温至1080℃保温80分钟，烧结成瓷，然后取出样品快速水冷至室温；
（5）烧结后的样品加工成两面光滑的薄片，两面镀银电极制备成具有大压电应变记忆特性的无铅铁电陶瓷材料。
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|---|---|---|---|---|
| CN101200370A (zh) * | 2007-10-18 | 2008-06-18 | 桂林电子科技大学 | 一种三元系钛酸铋钠基无铅压电陶瓷 |
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