CN108675786B - 一种无铅压电微-纳米线及其制备方法 - Google Patents
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- 239000002070 nanowire Substances 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 229910010252 TiO3 Inorganic materials 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 4
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 16
- 238000003801 milling Methods 0.000 claims description 9
- 239000002994 raw material Substances 0.000 claims description 9
- 238000000498 ball milling Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 claims description 5
- 239000006104 solid solution Substances 0.000 claims description 5
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium 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
- 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
- 238000002156 mixing 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
- 238000004321 preservation Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 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
- 238000000034 method Methods 0.000 abstract description 10
- 238000005245 sintering Methods 0.000 abstract description 5
- 239000007790 solid phase Substances 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000009776 industrial production Methods 0.000 abstract description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000001027 hydrothermal synthesis Methods 0.000 description 2
- 238000001878 scanning electron micrograph Methods 0.000 description 2
- 229910003237 Na0.5Bi0.5TiO3 Inorganic materials 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 238000003746 solid phase reaction Methods 0.000 description 1
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Abstract
本发明公开了一种无铅压电微‑纳米线及其制备方法，材料组成为：Bi0.5Na0.5TiO3+0.15wt%LiBiO3+0.02%wtCeO2。用固相烧结法，结合热处理技术，生长无铅压电微‑纳米线，长度在3‑8μm，直径为100‑500nm，工艺简单，成本低廉，适合大规模工业生产。
Description
技术领域
本发明涉及的无铅铁电材料，具体是一种ABO3型钙钛矿结构，无铅压电微-纳米线及其制备方法。
背景技术
纳米技术作为 21世纪一个重要新兴科技领域，在理论与实践上正经历着高速发展，大量新型纳米材料与器件不断被开发出来， 并在生物医学、国防以及日常生活的各个领域展现前所未有的应用前景。纳米发电机可以直接给其它微型电子器件供电，例如在生物传感器、生物医药监控和生物活体探测方面，为了保持纳米系统微小且体内可植入等特性，小型供电系统必不可少。通过液相分解法、拓扑化学固相反应法可以制备BaTiO3纳米线。另外采用水热法和溶胶-凝胶-水热法可以制备Bi基复钙钛矿结构的纳米线，如Na0.5Bi0.5TiO3, K0.5Bi0.5TiO3和(Na0.8K0.2)0.5Bi0.5TiO3纳米线。但是通过固相烧结结合热处理制备无铅压电微-纳米线还未见报导。
发明内容
本发明的目的是提供一种ABO3型钙钛矿结构，无铅压电微-纳米线及其制备方法，通过固相烧结法结合热处理，制备长度在3-8μm，直径为100-500nm的纳米线。
本发明无铅压电微-纳米线，组成为：
Bi0.5Na0.5TiO3+0.15wt%LiBiO3+0.02%wtCeO2；
本发明无铅压电微-纳米线的制备方法，采用固相陶瓷烧结法，结合热处理技术，具体包括如下步骤：
（1）按照Bi0.5Na0.5TiO3+0.15wt%LiBiO3+0.02%wtCeO2的化学计量分别称取分析纯原料Bi2O3、Li2CO3、CeO2、Na2CO3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800℃保温2小时合成固溶体；
（3）合成的固溶体在100Mpa冷等静压成型；
（4）成型的原料采用微波快速烧结，在1000℃保温15分钟，烧结成瓷；
（5）烧结的样品放在氧化锆板上，上面覆盖氧化铝板，50℃/min快速升温至612℃保温106分钟，然后随炉冷却至室温；通过热处理的样品生长成无铅压电微-纳米线，长度在3-8μm，直径为100-500nm。
采用本发明方法制备的无铅压电微-纳米线，长度在3-8μm，直径为100-500nm，具有产率高、工艺简单、成本低、易于实现、适合大规模工业生产的优点。
附图说明
图1为本发明无铅压电微-纳米线SEM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
一种无铅压电微-纳米线，组成为：
Bi0.5Na0.5TiO3+0.15wt%LiBiO3+0.02wt%CeO2；
上述的无铅微-纳米线材料的制备方法，采用传统陶瓷烧结法，结合热处理技术，包括如下步骤：
（1）按照Bi0.5Na0.5TiO3+0.15wt%LiBiO3+0.02wt%CeO2的化学计量分别称取分析纯原料Bi2O3、Li2CO3、CeO2、Na2CO3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800℃保温2小时合成固溶体；
（3）合成的固溶体在100Mpa冷等静压成型；
（4）成型的原料采用微波快速烧结，在1000℃保温15分钟烧结成瓷；
（5）烧结的样品放在氧化锆板上，上面覆盖氧化铝板，50℃/min快速升温至612℃保温106分钟，然后随炉冷却至室温；通过热处理的样品生长成无铅微-纳米线，其SEM图，如图1所示，其长度在3-8μm，直径为100-500nm。
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 (1)
1.一种无铅压电微-纳米线的制备方法，其特征在于：该无铅材料组成为：
Bi0.5Na0.5TiO3+0.15wt%LiBiO3+0.02%wtCeO2；
制备方法包括如下步骤：
（1）按照Bi0.5Na0.5TiO3+0.15wt%LiBiO3+0.02%wtCeO2的化学计量分别称取分析纯原料Bi2O3、Li2CO3、CeO2、Na2CO3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800℃保温2小时合成固溶体；
（3）合成的粉体在100Mpa冷等静压成型；
（4）成型的原料采用微波快速烧结，在1000℃保温15分钟烧结成瓷；
（5） 烧结的样品放在氧化锆板上，上面覆盖氧化铝板，50℃/min快速升温至612℃保温106分钟，然后随炉冷却至室温，通过热处理的样品生长成微-纳米线，长度在3-8μm，直径为100-500nm。
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| CN1673181A (zh) * | 2005-01-04 | 2005-09-28 | 西北工业大学 | 钛酸铋钠钡锡铈压电陶瓷及其制备方法 |
| US8076257B1 (en) * | 2008-04-23 | 2011-12-13 | MRA Laboratories, Inc | High temperature ceramic dielectric composition and capacitors made from the composition |
| CN103708829A (zh) * | 2013-12-19 | 2014-04-09 | 桂林电子科技大学 | 一种反常压电各向异性无铅压电陶瓷及其织构化制备方法 |
| CN106631016A (zh) * | 2016-12-20 | 2017-05-10 | 桂林电子科技大学 | 一种铌酸钾钠体系纳米线材料及其制备方法 |
| CN107032784A (zh) * | 2017-05-02 | 2017-08-11 | 桂林电子科技大学 | 一种大压电各向异性无铅压电陶瓷材料及其制备方法 |
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