CN108218423A - 一种x8r型陶瓷电容器介质材料及其制备方法 - Google Patents
一种x8r型陶瓷电容器介质材料及其制备方法 Download PDFInfo
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- 239000003985 ceramic capacitor Substances 0.000 title claims abstract description 26
- 239000003989 dielectric material Substances 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 238000000498 ball milling Methods 0.000 claims abstract description 13
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 claims abstract description 7
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- ZKATWMILCYLAPD-UHFFFAOYSA-N niobium pentoxide Inorganic materials O=[Nb](=O)O[Nb](=O)=O ZKATWMILCYLAPD-UHFFFAOYSA-N 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 5
- KTUFCUMIWABKDW-UHFFFAOYSA-N oxo(oxolanthaniooxy)lanthanum Chemical compound O=[La]O[La]=O KTUFCUMIWABKDW-UHFFFAOYSA-N 0.000 claims description 5
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 4
- 239000011230 binding agent Substances 0.000 claims description 3
- 239000000084 colloidal system Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- 238000000748 compression moulding Methods 0.000 claims description 2
- 239000007858 starting material Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 6
- 229910010293 ceramic material Inorganic materials 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 2
- 239000010955 niobium Substances 0.000 abstract 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 abstract 1
- DQMUQFUTDWISTM-UHFFFAOYSA-N O.[O-2].[Fe+2].[Fe+2].[O-2] Chemical compound O.[O-2].[Fe+2].[Fe+2].[O-2] DQMUQFUTDWISTM-UHFFFAOYSA-N 0.000 abstract 1
- AYJRCSIUFZENHW-DEQYMQKBSA-L barium(2+);oxomethanediolate Chemical compound [Ba+2].[O-][14C]([O-])=O AYJRCSIUFZENHW-DEQYMQKBSA-L 0.000 abstract 1
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- URLJKFSTXLNXLG-UHFFFAOYSA-N niobium(5+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5] URLJKFSTXLNXLG-UHFFFAOYSA-N 0.000 abstract 1
- 238000003746 solid phase reaction Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000010532 solid phase synthesis reaction Methods 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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Abstract
本发明公开了一种X8R型陶瓷电容器介质材料及其制备方法。将碳酸钡、三氧化二镧、三氧化二铁和五氧化二铌先球磨，细化原料，根据名义化学式Ba4LaFe0.5Nb9.5O30按化学计量比配料，经预烧、二次球磨等工序，利用固相反应和碳酸盐分解过程，最终制得X8R型陶瓷电容器介质材料Ba4LaFe0.5Nb9.5O30。本发明方法可获得优良的温度稳定性介电陶瓷材料，满足EIA X8R标准；本发明方法简单，节能减排，成本适中，适合批量生产。
Description
技术领域
本发明涉及一种X8R型陶瓷电容器介质材料及其制备方法，属于电子元器件陶瓷材料技术领域。
背景技术
陶瓷电容器是电子信息技术的重要基础器件，随着电子器件的飞速发展，要求陶瓷电容器能够在更宽的的温度范围内保持稳定的介电性能。根据国际电子工业协会EIA(Electronic Industries Association)标准，X8R型MLCC是指以25℃的电容值为基准，在温度从-55℃到+150℃的范围内，电容变化率(ΔC/C25)≤±15％。在军工、航天航空以及勘探等领域里，对于能承受高温的电子元器件有很大需求。目前大多数陶瓷电容器采用X7R陶瓷配方，但这种材料容量温度特性具有一定的局限性，在-55℃到+125℃的范围内，电容变化率(ΔC/C25)≤±15％，超过+125℃则无法提供温度的介电性能。因此，研发具有高温稳定性的X8R型MLCC介质陶瓷材料，具有重要的实际应用价值。另外，大多数陶瓷电容器基于钙钛矿结构，本发明采用钨青铜结构，有助于扩展电容器陶瓷的材料类型。
发明内容
本发明的目的是提供一种X8R型陶瓷电容器介质材料及其制备方法。
本发明的X8R型陶瓷电容器介质材料的名义化学式为Ba4LaFe0.5Nb9.5O30。
制备上述的X8R型陶瓷电容器介质材料的方法的具体步骤为：
(1)将纯度大于99.9％的BaCO3、La2O3、Fe2O3和Nb2O5作为起始原料，按照BaCO3:La2O3:Fe2O3:Nb2O5＝4:0.5:0.25:4.75的摩尔比进行配料后以无水乙醇为球磨介质，混合球磨48小时，于100℃下烘干5小时，制得烘干样品。
(2)把步骤(1)制得的烘干样品在1000～1250℃预烧结4小时，制得预烧后的粉体。
(3)将步骤(2)制得的预烧后的粉体研碎，再以无水乙醇为球磨介质球磨48小时混合均匀，于100℃下烘干5小时后研磨成粉状，以5～10wt％的聚乙烯醇水溶液作为粘结剂造粒，然后过60目筛后压制成型，于400～600℃下保温3～5小时排出胶体，再在高温炉空气气氛中1100～1400℃烧结4～10小时后随炉自然冷却至室温，即制得X8R型陶瓷电容器介质材料。
所述聚乙烯醇水溶液的优选浓度为8wt％。
本发明采用传统的固相法制备介质材料，在中温下烧结即可获得性能优良的X8R型陶瓷材料，工艺简单，成本低廉，对环境无害，且所制得的X8R型陶瓷电容器介质材料的温度稳定性好，能够在-55～150℃的范围内满足(ΔC/C25)≤±15％，满足EIA X8R标准；本发明所提供的陶瓷电容器介质材料及其制备方法，具有良好的产业化前景。
附图说明
图1为本发明实施例制得的Ba4LaFe0.5Nb9.5O30陶瓷电容器介质材料的X射线图谱。
图2为本发明实施例制得的Ba4LaFe0.5Nb9.5O30陶瓷电容器介质材料的表面显微形貌照片。
图3为本发明实施例制得的Ba4LaFe0.5Nb9.5O30陶瓷电容器介质材料的介电常数随温度变化的规律图。
图4为本发明实施例制得的Ba4LaFe0.5Nb9.5O30陶瓷电容器介质材料的电容变化率随温度变化的规律图，从图中看出，在室温时介电常数在±15％以内。
具体实施方式
实施例：
将纯度均为99.99％的BaCO3、La2O3、Nb2O5和Fe2O3原料按化学计量比为Ba4LaFe0.5Nb9.5O30配料放入球磨罐中；选择氧化锆球和尼龙罐；所加原料质量为磨球质量的8％；混合球磨时间为48个小时，转速为350转/分钟，球磨介质为无水乙醇；所得产物置于100℃的烘箱中烘干5小时，以5℃/分的升温速率升至1100℃预烧结4小时；取出预烧后的粉体研碎，再以无水乙醇为球磨介质球磨48小时混合均匀，于100℃下烘干5小时后研磨成粉状，用质量百分浓度为8％的聚乙烯醇水溶液作为粘结剂造粒，过60目的筛子后在100MPa压强下压成直径为10mm，厚度为1mm的圆片状生坯，以1.5℃/分的升温速率升至550℃，保温4小时排出胶体，再以5℃/分的升温速率升至1280℃于高温炉空气气氛中保温6小时进行烧结，最后随炉自然冷却至室温，即制得X8R型陶瓷电容器介质材料Ba4LaFe0.5Nb9.5O30。
将本实施例制得的X8R型陶瓷电容器介质材料两侧均烧上银电极，制成圆片电容器，然后测试并计算该介质材料的相对介电常数随温度的变化，如附图3所示，Ba4LaFe0.5Nb9.5O30陶瓷材料在很宽的温度区间内具有平稳的温度特性，满足X8R标准，即电容变化率在-55～150℃范围内不超过±15％，能作为X8R型陶瓷电容器介质材料。
Claims (2)
1.一种X8R型陶瓷电容器介质材料，其特征在于该X8R型陶瓷电容器介质材料的名义化学式为Ba4LaFe0.5Nb9.5O30；
所述的X8R型陶瓷电容器介质材料具有如下制备方法，具体步骤为：
(1)将纯度大于99.9％的BaCO3、La2O3、Fe2O3和Nb2O5作为起始原料，按照BaCO3:La2O3:Fe2O3:Nb2O5＝4:0.5:0.25:4.75的摩尔比进行配料后以无水乙醇为球磨介质，混合球磨48小时，于100℃下烘干5小时，制得烘干样品；
(2)把步骤(1)制得的烘干样品在1000～1250℃预烧结4小时，制得预烧后的粉体；
(3)将步骤(2)制得的预烧后的粉体研碎，再以无水乙醇为球磨介质球磨48小时混合均匀，于100℃下烘干5小时后研磨成粉状，以5～10wt％的聚乙烯醇水溶液作为粘结剂造粒，然后过60目筛后压制成型，于400～600℃下保温3～5小时排出胶体，再在高温炉空气气氛中1100～1400℃烧结4～10小时后随炉自然冷却至室温，即制得X8R型陶瓷电容器介质材料。
2.根据权利要求1所述的X8R型陶瓷电容器介质材料，其特征在于所述的制备方法中，步骤(3)聚乙烯醇水溶液的浓度为8wt％。
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110423116A (zh) * | 2019-07-24 | 2019-11-08 | 桂林理工大学 | 一种x7r型陶瓷电容器介质材料及其制备方法 |
| CN110511026A (zh) * | 2019-07-24 | 2019-11-29 | 桂林理工大学 | 一种x8r型陶瓷电容器介质材料及其制备方法 |
| CN111498902A (zh) * | 2020-03-20 | 2020-08-07 | 桂林理工大学 | 一种利用摩擦催化高效降解染料污水的亚微米粉及其制备方法 |
| CN113264762A (zh) * | 2021-05-21 | 2021-08-17 | 安徽大学 | 一种x8r型陶瓷电容器材料及其制备方法 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101538160A (zh) * | 2009-04-14 | 2009-09-23 | 桂林工学院 | 温度稳定型钽酸盐介电陶瓷及其制备方法 |
| US20130222970A1 (en) * | 2012-02-29 | 2013-08-29 | Tdk Corporation | Dielectric ceramic composition and electronic device |
| CN104446468A (zh) * | 2014-11-30 | 2015-03-25 | 桂林理工大学 | 一种x9r型陶瓷电容器介质材料及其制备方法 |
| CN105884352A (zh) * | 2016-04-12 | 2016-08-24 | 桂林理工大学 | 一种新型陶瓷电容器材料Ba4RFe0.5Nb9.5O30（R=La，Eu，Gd）及其制备方法 |
| CN106565240A (zh) * | 2016-11-05 | 2017-04-19 | 桂林理工大学 | 一种铁基陶瓷电容器材料及其制备方法 |
-
2018
- 2018-01-11 CN CN201810028170.9A patent/CN108218423A/zh active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101538160A (zh) * | 2009-04-14 | 2009-09-23 | 桂林工学院 | 温度稳定型钽酸盐介电陶瓷及其制备方法 |
| US20130222970A1 (en) * | 2012-02-29 | 2013-08-29 | Tdk Corporation | Dielectric ceramic composition and electronic device |
| CN104446468A (zh) * | 2014-11-30 | 2015-03-25 | 桂林理工大学 | 一种x9r型陶瓷电容器介质材料及其制备方法 |
| CN105884352A (zh) * | 2016-04-12 | 2016-08-24 | 桂林理工大学 | 一种新型陶瓷电容器材料Ba4RFe0.5Nb9.5O30（R=La，Eu，Gd）及其制备方法 |
| CN106565240A (zh) * | 2016-11-05 | 2017-04-19 | 桂林理工大学 | 一种铁基陶瓷电容器材料及其制备方法 |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110423116A (zh) * | 2019-07-24 | 2019-11-08 | 桂林理工大学 | 一种x7r型陶瓷电容器介质材料及其制备方法 |
| CN110511026A (zh) * | 2019-07-24 | 2019-11-29 | 桂林理工大学 | 一种x8r型陶瓷电容器介质材料及其制备方法 |
| CN110423116B (zh) * | 2019-07-24 | 2021-07-02 | 桂林理工大学 | 一种x7r型陶瓷电容器介质材料及其制备方法 |
| CN110511026B (zh) * | 2019-07-24 | 2022-01-04 | 桂林理工大学 | 一种x8r型陶瓷电容器介质材料及其制备方法 |
| CN111498902A (zh) * | 2020-03-20 | 2020-08-07 | 桂林理工大学 | 一种利用摩擦催化高效降解染料污水的亚微米粉及其制备方法 |
| CN111498902B (zh) * | 2020-03-20 | 2022-08-09 | 桂林理工大学 | 一种利用摩擦催化高效降解染料污水的亚微米粉及其制备方法 |
| CN113264762A (zh) * | 2021-05-21 | 2021-08-17 | 安徽大学 | 一种x8r型陶瓷电容器材料及其制备方法 |
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