CN104310967B - 一种耐高电压的高稳定性压电陶瓷 - Google Patents
一种耐高电压的高稳定性压电陶瓷 Download PDFInfo
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- 239000000919 ceramic Substances 0.000 title claims abstract description 33
- 238000002156 mixing Methods 0.000 claims abstract description 22
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 14
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 14
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000002994 raw material Substances 0.000 claims abstract description 14
- 238000001035 drying Methods 0.000 claims abstract description 13
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 claims abstract description 10
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910000420 cerium oxide Inorganic materials 0.000 claims abstract description 7
- BDAGIHXWWSANSR-NJFSPNSNSA-N hydroxyformaldehyde Chemical compound O[14CH]=O BDAGIHXWWSANSR-NJFSPNSNSA-N 0.000 claims abstract description 7
- XMFOQHDPRMAJNU-UHFFFAOYSA-N lead(ii,iv) oxide Chemical compound O1[Pb]O[Pb]11O[Pb]O1 XMFOQHDPRMAJNU-UHFFFAOYSA-N 0.000 claims abstract description 7
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 claims abstract description 7
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 7
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 7
- 239000010955 niobium Substances 0.000 claims abstract description 7
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims abstract description 7
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims abstract description 7
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims abstract description 7
- 230000010287 polarization Effects 0.000 claims abstract description 7
- 239000000843 powder Substances 0.000 claims abstract description 7
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- 229960001866 silicon dioxide Drugs 0.000 claims abstract description 7
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 7
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 7
- 229910000018 strontium carbonate Inorganic materials 0.000 claims abstract description 7
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 7
- 238000005245 sintering Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 14
- 239000008367 deionised water Substances 0.000 claims description 14
- 229910021641 deionized water Inorganic materials 0.000 claims description 14
- 229910052726 zirconium Inorganic materials 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 6
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- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical group CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- 229960000935 dehydrated alcohol Drugs 0.000 claims description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
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- 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
- 238000005266 casting Methods 0.000 claims description 3
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- 230000008595 infiltration Effects 0.000 claims description 3
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- 238000003786 synthesis reaction Methods 0.000 claims description 3
- AYJRCSIUFZENHW-DEQYMQKBSA-L barium(2+);oxomethanediolate Chemical compound [Ba+2].[O-][14C]([O-])=O AYJRCSIUFZENHW-DEQYMQKBSA-L 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims 2
- 238000010298 pulverizing process Methods 0.000 abstract 1
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- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
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Abstract
一种耐高电压的高稳定性压电陶瓷，包括以下重量份数的原料：四氧化三铅100、碳酸钡14-17、碳酸锶3.5-6.5、二氧化锆28-30、二氧化钛15-17、五氧化二铌9.6、氧化亚镍2.8、氧化铈0.05-0.07、三氧化二铬0.03-0.05、二氧化硅0.04-0.06、碳酸锂0.02-0.04。经混料、预烧、粉碎、烘干干燥、制浆、流膜成型、等静压、烧结、被电极、极化制备而成。本压电陶瓷其微观晶胞为四方晶胞，晶轴之间的夹角为90°，晶胞结构较稳定，电畴受高电压、高温冲击变化很小。采用此压电陶瓷配方制成的器件，性能漂移小，失效率低，提高了产品的稳定性与一致性，推动了压电大功率产品的大规模应用。
Description
技术领域
本发明涉及压电陶瓷技术领域，具体说是一种耐高电压的高稳定性压电陶瓷。
背景技术
压电陶瓷是一种新兴的陶瓷材料，迄今已有一百多年的发展历史。上世纪中期，PZT系压电陶瓷的发明，促进了电子技术的飞速发展，从而使各种电子产品出现在我们的面前，压电陶瓷作为其内部精密的元件，可以将电能转换成机械能或者将机械能转换成电能，在电子产品中起到了关键作用。
在产品开发的过程，由于元器件应用条件的苛刻，如工作电压很高，达到220V；超长工作时间，要求达到3年或更久；使用温度要求达到-40-105℃。如车用报警器，压电水泵器，纺织选针器，由于这些产品的核心元件所使用的陶瓷材料为典型的压电“软性”材料，即具有较高的压电常数、介电系数与机电耦合系数。为获得高的压电性能，一般采用软性添加物进行掺杂改性，同时配方组份选定在准同相界（MPB）附近，然后这样的材料，由于其处于三方晶胞与四方晶胞交界区域，虽然性能活跃，但结构稳定性差，在外部条件作用下，极易产生“退极化”现象，导致材料性能恶化，从而影响产品正常工作。
发明内容
针对上述存在的问题，本发明的目的是提供一种耐高电压的高稳定性压电陶瓷。
本发明的技术方案是：一种耐高电压的高稳定性压电陶瓷，包括以下重量份数的原料：四氧化三铅100、碳酸钡14-17、碳酸锶3.5-6.5、二氧化锆28-30、二氧化钛15-17、五氧化二铌9.6、氧化亚镍2.8、氧化铈0.05-0.07、三氧化二铬0.03-0.05、二氧化硅0.04-0.06、碳酸锂0.02-0.04。
制备上述耐高电压的高稳定性压电陶瓷的方法，包括以下步骤：
（1）、混料：将四氧化三铅、碳酸钡、碳酸锶、二氧化锆、二氧化钛、五氧化二铌、氧化亚镍分别单独在120-150℃温度下烘烤12小时，然后混合在一起，再加入氧化铈、三氧化二铬、二氧化硅、碳酸锂，充分混合均匀；然后将上述原料加入到行星磨中混料6小时，混料时按原料：锆球∶去离子水=1∶2∶1的比例在行星磨中加入锆球和去离子水；
（2）、预烧：将混合好的物料经烘干干燥后盛放于氧化铝坩埚中，然后放入电阻炉进行预合成，直至温度达到1010-1030℃之后，再保温2小时；
（3）、粉碎：将预烧之后的结块物料放入行星磨中混料6小时，混料时按原料：锆球∶去离子水=1∶2∶1的比例在行星磨中加入锆球和去离子水；
（4）、烘干干燥：将物料放入烘箱内，在120-150℃温度下干燥6-8小时；
（5）、制浆：对物料中加入溶剂和胶粘剂进行研磨混合12-15小时，按物料：溶剂：胶粘剂=（80-100）:（30-35）:（16-20）的比例混合；
（6）、流膜成型、等静压：应用流延机流膜成型，膜厚24-26μm，双膜复合等静压得到45-48μm陶瓷生膜带，然后采用冲模冲制得到薄圆片陶瓷生坯；
（7）、烧结：应用高温箱式电阻炉将薄圆片陶瓷生坯烧结成瓷，温度达到1240-1260℃之后再保温1小时；
（8）、被电极、极化：采用丝网印刷工艺将银浆印刷至陶瓷薄片，经烘干、烧渗之后，在陶瓷表面形成均匀一致的电极；随后使用耐压仪进行极化，极化直流电压为200V，时间为2-3秒，即得到具有压电效应的压电陶瓷谐振片。
所述步骤（5）中溶剂为无水乙醇，胶粘剂为PVB。
本发明的有益效果：本发明的压电陶瓷配方组成远离准同相界，处于四方相结构，其微观晶胞为四方晶胞，由于其晶轴之间的夹角为90°，晶胞结构较稳定，电畴受高电压、高温冲击变化很小。采用此压电陶瓷配方制成的器件，性能漂移小，失效率低，大大提高了产品的稳定性与一致性，推动了压电大功率产品的的大规模应用。
具体实施方式
下面的实施例可更详细地说明本发明，但不以任何形式限制本发明。
实施例1：
（1）、混料：称取四氧化三铅100重量份、碳酸钡14重量份、碳酸锶3.5重量份、二氧化锆28重量份、二氧化钛15重量份、五氧化二铌9.6重量份、氧化亚镍2.8重量份，分别单独在120-150℃温度下烘烤12小时，然后混合在一起，再加入氧化铈0.05重量份、三氧化二铬0.03重量份、二氧化硅0.04重量份、碳酸锂0.02重量份，充分混合均匀；然后将上述原料加入到行星磨中混料6小时，混料时按原料：锆球∶去离子水=1∶2∶1的比例在行星磨中加入锆球和去离子水；
（2）、预烧：将混合好的物料经烘干干燥后盛放于氧化铝坩埚中，然后放入电阻炉进行预合成，直至温度达到1010-1030℃之后，再保温2小时；
（3）、粉碎：将预烧之后的结块物料放入行星磨中混料6小时，混料时按原料：锆球∶去离子水=1∶2∶1的比例在行星磨中加入锆球和去离子水；
（4）、烘干干燥：将物料放入烘箱内，在120-150℃温度下干燥6-8小时；
（5）、制浆：对物料中加入无水乙醇和PVB进行研磨混合12-15小时，按物料：无水乙醇：PVB=（80-100）:（30-35）:（16-20）的比例混合；
（6）、流膜成型、等静压：应用流延机流膜成型，膜厚24-26μm，双膜复合等静压得到45-48μm陶瓷生膜带，然后采用冲模冲制得到薄圆片陶瓷生坯；
（7）、烧结：应用高温箱式电阻炉将薄圆片陶瓷生坯烧结成瓷，温度达到1240-1260℃之后再保温1小时；
（8）、被电极、极化：采用丝网印刷工艺将银浆印刷至陶瓷薄片，经烘干、烧渗之后，在陶瓷表面形成均匀一致的电极；随后使用耐压仪进行极化，极化直流电压为200V，时间为2-3秒，即得到具有压电效应的压电陶瓷谐振片。
实施例2：
（1）、混料：称取四氧化三铅100重量份、碳酸钡17重量份、碳酸锶6.5重量份、二氧化锆30重量份、二氧化钛17重量份、五氧化二铌9.6重量份、氧化亚镍2.8重量份，分别单独在120-150℃温度下烘烤12小时，然后混合在一起，再加入氧化铈0.07重量份、三氧化二铬0.05重量份、二氧化硅0.06重量份、碳酸锂0.04重量份，充分混合均匀；然后将上述原料加入到行星磨中混料6小时，混料时按原料：锆球∶去离子水=1∶2∶1的比例在行星磨中加入锆球和去离子水；
步骤（2）-（8）与实施例1相同。
Claims (3)
1.一种耐高电压的高稳定性压电陶瓷，其特征在于，包括以下重量份数的原料：四氧化三铅100、碳酸钡14-17、碳酸锶3.5-6.5、二氧化锆28-30、二氧化钛15-17、五氧化二铌9.6、氧化亚镍2.8、氧化铈0.05-0.07、三氧化二铬0.03-0.05、二氧化硅0.04-0.06、碳酸锂0.02-0.04。
2.制备如权利要求1所述耐高电压的高稳定性压电陶瓷的方法，其特征在于，包括以下步骤：
（1）、混料：将四氧化三铅、碳酸钡、碳酸锶、二氧化锆、二氧化钛、五氧化二铌、氧化亚镍分别单独在120-150℃温度下烘烤12小时，然后混合在一起，再加入氧化铈、三氧化二铬、二氧化硅、碳酸锂，充分混合均匀；然后将上述原料加入到行星磨中混料6小时，混料时按原料：锆球∶去离子水=1∶2∶1的比例在行星磨中加入锆球和去离子水；
（2）、预烧：将混合好的物料经烘干干燥后盛放于氧化铝坩埚中，然后放入电阻炉进行预合成，直至温度达到1010-1030℃之后，再保温2小时；
（3）、粉碎：将预烧之后的结块物料放入行星磨中混料6小时，混料时按原料：锆球∶去离子水=1∶2∶1的比例在行星磨中加入锆球和去离子水；
（4）、烘干干燥：将物料放入烘箱内，在120-150℃温度下干燥6-8小时；
（5）、制浆：对物料中加入溶剂和胶粘剂进行研磨混合12-15小时，按物料：溶剂：胶粘剂=（80-100）:（30-35）:（16-20）的比例混合；
（6）、流膜成型、等静压：应用流延机流膜成型，膜厚24-26μm，双膜复合等静压得到45-48μm陶瓷生膜带，然后采用冲模冲制得到薄圆片陶瓷生坯；
（7）、烧结：应用高温箱式电阻炉将薄圆片陶瓷生坯烧结成瓷，温度达到1240-1260℃之后再保温1小时；
（8）、被电极、极化：采用丝网印刷工艺将银浆印刷至陶瓷薄片，经烘干、烧渗之后，在陶瓷表面形成均匀一致的电极；随后使用耐压仪进行极化，极化直流电压为200V，时间为2-3秒，即得到具有压电效应的压电陶瓷谐振片。
3.如权利要求2所述耐高电压的高稳定性压电陶瓷的制备方法，其特征在于，所述步骤（5）中溶剂为无水乙醇，胶粘剂为PVB。
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