CN110483034A - 一种高介电常数np0型介质陶瓷 - Google Patents

一种高介电常数np0型介质陶瓷 Download PDF

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CN110483034A
CN110483034A CN201910878341.1A CN201910878341A CN110483034A CN 110483034 A CN110483034 A CN 110483034A CN 201910878341 A CN201910878341 A CN 201910878341A CN 110483034 A CN110483034 A CN 110483034A
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李吉晓
何建成
李岩
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Li Jixiao
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Rudong Baolian Electronic Technology Co Ltd
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Abstract

本发明公开了一种高介电常数NP0型介质陶瓷；一种高介电常数NP0型介质陶瓷包括偏钛酸镁(MgTiO3) 5‑250份、钛酸钙(CaTiO3) 5‑150份、二氧化钛(TiO2) 5‑100份、三氧化二钕(Nd2O3) 5‑350份、改性添加剂5‑200份和烧结助剂50‑120份；本发明具有非常稳定温度系数、烧结温度低、介电常数高、介电损耗小等优点。

Description

一种高介电常数NP0型介质陶瓷
技术领域
本发明涉及陶瓷组合物技术领域，更具体地说，它涉及一种高介电常数NP0型介质陶瓷。
背景技术
电容器中的介质材料按容量的温度稳定性可以划分为两类，即Ⅰ类陶瓷电容器和Ⅱ类陶瓷电容器，在这之中X5R、X7R、X8R、Y5V和Z5U等属于Ⅱ类陶瓷，Ⅱ类陶瓷电容器的介电常数一般大于1000，其电气性能比较稳定，适用于隔直、耦合、旁路及对可靠性要求较高的中、低频场合，以及对容量稳定性和损耗要求不高的场合；相对于前述而言，NP0属于Ⅰ类陶瓷，具有温度补偿特性，Ⅰ类陶瓷电容器的介电常数一般小于100，其电容量性能稳定，基本上不随温度、电压、时间的变化而改变，属于超稳定、低损耗、低寄生电感的电容器介质材料，常用于对稳定性、可靠性要求较高的高频、甚至超高频的场合。
在一些聚集较多本目光的材料系统中，镁钛锌系统(MgO-TiO2-ZnO系统)是以MgO、TiO2、ZnO等为原料而合成；MgO-TiO2-ZnO系统为基础研制的陶瓷介质材料具有非常理想的高频性能，并且能够通过改变适当成分的配比，可以有效的减小介质材料的介电损耗。
但是，该系统的容温系数为正数，需要容温系数为负数的补偿剂，从而该体系烧结温度过高，故有待改善。
发明内容
针对现有技术存在的不足，本发明的目的在于提供一种高介电常数NP0型介质陶瓷，其具有烧结温度低的优点。
为实现上述个目的，本发明提供了如下技术方案：一种高介电常数NP0型介质陶瓷，所述NP0型介质陶瓷包括以下重量份的原料制成：偏钛酸镁(MgTiO3)5-250份、钛酸钙(CaTiO3)5-150份、二氧化钛(TiO2)5-100份、三氧化二钕(Nd2O3)5-350份和烧结助剂50-120份。
通过采用上述技术方案，由于采用偏钛酸镁(MgTiO3)、钛酸钙(CaTiO3)、二氧化钛(TiO2)、三氧化二钕(Nd2O3)和烧结助剂，形成多元系介电陶瓷制备高介电常数常数之NP0介电材料，此体系有非常稳定的温度系数、烧结温度低、介电常数高、介电损耗小等优点，同时可采用低钯含量的银钯浆料作为内电极，可应用于多层片式陶瓷电容器的制备，并大大降低了生产成本。
进一步地，所述烧结助剂为氧化铋(Bi2O3)、氧化硼(B2O3)和氧化铝(Al2O3)中的至少一种。
通过采用上述技术方案，通过烧结助剂的可对烧结温度进行降低，减轻了制作高介电常数NP0型介质陶瓷的难度。
进一步地，所述NP0型介质陶瓷的原料还包括改性添加剂5-200份。
通过采用上述技术方案，通过添加改性添加剂可提高NP0型介质陶瓷的化学稳定性、高的电子注入效率和相对较高的光催化活性等，改变了其物理、化学性质。
进一步地，所述改性添加剂为五氧化二铌(Nb2O5)、二氧化锆(ZrO2)和氧化钙(CaO)中的至少一种。
通过采用上述技术方案，改性添加剂为五氧化二铌、二氧化锆和氧化钙中的一种可对NP0型介质陶瓷，进一步的降低其烧结温度。
进一步地，所述NP0型介质陶瓷还包括在上述混合后的粉料内加入研磨球和球磨介质。
通过采用上述技术方案，通过在混合粉料内加入研磨球和球磨介质，更好的对混合粉料进行研磨，提高其研磨效率和质量。
进一步地，所述混合后的粉料、研磨球与球磨介质的质量比为1∶1∶2的比例。
通过采用上述技术方案，通过较佳的配比，在使用较少的材料达成较好的混料研磨效果。
进一步地，所述研磨球为氧化锆陶瓷球。
通过采用上述技术方案，氧化锆陶瓷球在常温下具有高的强度和高韧性、耐磨性好、耐高温耐腐蚀、刚度高、不导磁、电绝缘，钇稳定TZP氧化锆陶瓷微珠比重是普通氧化锆珠的1.6倍，同等条件下具有更高的研磨效率；进一步的提高了研磨效率。
进一步地，所述球磨介质为去离子水。
通过采用上述技术方案，通过去离子水作为球磨介质，可减轻混合后的物料与其余球磨介质发生反应，同时提高混合粉料的研磨效果。
进一步地，所述混合后的粉料、研磨球与去离子水在进行球磨和煅烧处理后加入质量百分比为2％的聚乙烯醇(PVA)。
通过采用上述技术方案，通过向经过研磨煅烧步骤后的混合粉料内加入质量百分比为2％的聚乙烯醇(PVA)，提高其成膜性，并增加了混合粉料的粘性，便于后期工序中的压制成型的成功率。
综上所述，本发明具有以下有益效果：
第一、由于本发明采用偏钛酸镁、钛酸钙、二氧化钛、三氧化二钕和烧结助剂，形成多元系介电陶瓷制备高介电常数常数之NP0介电材料，此体系有非常稳定的温度系数、烧结温度低、介电常数高、介电损耗小等优点，同时可采用低钯含量的银钯浆料作为内电极，可应用于多层片式陶瓷电容器的制备，并大大降低了生产成本；
第二、本发明中优选采用改性添加剂；可提高NP0型介质陶瓷的化学稳定性、高的电子注入效率和相对较高的光催化活性等，改变了其物理、化学性质。
具体实施方式
以下结合实施例对本发明作进一步详细说明。
实施例
实施例1：
一种高介电常数NP0型介质陶瓷,包括以下重量份的原料制成：5g的偏钛酸镁(MgTiO3)、5g的钛酸钙(CaTiO3)、5g的二氧化钛(TiO2)、5g的三氧化二钕(Nd2O3)、50g的烧结助剂和5g的改性添加剂，烧结助剂优选为氧化硼(B2O3)，改性添加剂优选为二氧化锆(ZrO2)。
在上述混合后的粉料内加入研磨球和球磨介质，其中混合后的粉料、研磨球与球磨介质的质量比为1∶1∶2的比例，研磨球为氧化锆陶瓷球，球磨介质为去离子水；混合后的粉料、研磨球与去离子水在进行球磨和煅烧处理后加入质量百分比为2％的聚乙烯醇(PVA)。
实施例2：
一种高介电常数NP0型介质陶瓷,包括以下重量份的原料制成：100g的偏钛酸镁(MgTiO3)、60g的钛酸钙(CaTiO3)、30g的二氧化钛(TiO2)、120g的三氧化二钕(Nd2O3)、60g的烧结助剂和60g的改性添加剂，烧结助剂优选为氧化铋(Bi2O3)，改性添加剂优选为五氧化二铌(Nb2O5)。
在上述混合后的粉料内加入研磨球和球磨介质，其中混合后的粉料、研磨球与球磨介质的质量比为1∶1∶2的比例，研磨球为氧化锆陶瓷球，球磨介质为去离子水；混合后的粉料、研磨球与去离子水在进行球磨和煅烧处理后加入质量百分比为2％的聚乙烯醇(PVA)。
实施例3：
一种高介电常数NP0型介质陶瓷,包括以下重量份的原料制成：120g的偏钛酸镁(MgTiO3)、80g的钛酸钙(CaTiO3)、50g的二氧化钛(TiO2)、180g的三氧化二钕(Nd2O3)、80g的烧结助剂和120g的改性添加剂，烧结助剂优选为氧化铋(Bi2O3)，改性添加剂优选为五氧化二铌(Nb2O5)。
在上述混合后的粉料内加入研磨球和球磨介质，其中混合后的粉料、研磨球与球磨介质的质量比为1∶1∶2的比例，研磨球为氧化锆陶瓷球，球磨介质为去离子水；混合后的粉料、研磨球与去离子水在进行球磨和煅烧处理后加入质量百分比为2％的聚乙烯醇(PVA)。
实施例4：
一种高介电常数NP0型介质陶瓷,包括以下重量份的原料制成：220g的偏钛酸镁(MgTiO3)、140g的钛酸钙(CaTiO3)、50g的二氧化钛(TiO2)、320g的三氧化二钕(Nd2O3)、120g的烧结助剂和150g的改性添加剂，烧结助剂优选为氧化铋(Bi2O3)，改性添加剂优选为五氧化二铌(Nb2O5)。
在上述混合后的粉料内加入研磨球和球磨介质，其中混合后的粉料、研磨球与球磨介质的质量比为1∶1∶2的比例，研磨球为氧化锆陶瓷球，球磨介质为去离子水；混合后的粉料、研磨球与去离子水在进行球磨和煅烧处理后加入质量百分比为2％的聚乙烯醇(PVA)。
实施例5：
一种高介电常数NP0型介质陶瓷,包括以下重量份的原料制成：250g的偏钛酸镁(MgTiO3)、150g的钛酸钙(CaTiO3)、100g的二氧化钛(TiO2)、350g的三氧化二钕(Nd2O3)、120g的烧结助剂和200g的改性添加剂，烧结助剂优选为氧化铝(Al2O3)，改性添加剂优选为氧化钙(CaO)。
在上述混合后的粉料内加入研磨球和球磨介质，其中混合后的粉料、研磨球与球磨介质的质量比为1∶1∶2的比例，研磨球为氧化锆陶瓷球，球磨介质为去离子水；混合后的粉料、研磨球与去离子水在进行球磨和煅烧处理后加入质量百分比为2％的聚乙烯醇(PVA)。
对比例对比例以MgO、TiO2、ZnO等为原料而合成的镁钛锌系统(MgO-TiO2-ZnO系统)。
性能检测试验取由实施例1-5和对比例的配方制成的高介电常数NP0型介质陶瓷各5份，并按照以下方法检测高介电常数NP0型介质的各项性能，由同一实施例或对比例制得的芯板测试结果取平均值，测试结果如表1所示：
采用Tonghui TH2827C阻抗分析仪测试在1MHz下制品的高频介电性能；得出εr(相对介质常数)和TCC(电容温度系数)。
表1
从表1可以看出，按照实施例1-5配方制成的高介电常数NP0型介质陶瓷，相对介质常数在120-480，电容温度系数在-30*10-6-30*10-6/℃，烧结温度在1000-1040℃，烧结温度较小，便于高介电常数NP0型介质陶瓷的制备。
对比例以MgO、TiO2、ZnO等为原料而合成的镁钛锌系统(MgO-TiO2-ZnO系统)，该系统的烧结温度较高，增大了高介电常数NP0型介质陶瓷的制备的难度。
本具体实施例仅仅是对本发明的解释，其并不是对本发明的限制，本领域技术人员在阅读完本说明书后可以根据需要对本实施例做出没有创造性贡献的修改，但只要在本发明的权利要求范围内都受到专利法的保护。

Claims (9)

1.一种高介电常数NP0型介质陶瓷，其特征在于，所述NP0型介质陶瓷包括以下重量份的原料制成：偏钛酸镁(MgTiO3) 5-250份、钛酸钙(CaTiO3) 5-150份、二氧化钛(TiO2) 5-100份、三氧化二钕(Nd2O3) 5-350份和烧结助剂50-120份。
2.根据权利要求1所述的一种高介电常数NP0型介质陶瓷，其特征在于，所述烧结助剂为氧化铋(Bi2O3)、氧化硼（B2O3）和氧化铝（Al2O3）中的至少一种。
3.根据权利要求1所述的一种高介电常数NP0型介质陶瓷，其特征在于，所述NP0型介质陶瓷的原料还包括改性添加剂5-200份。
4.根据权利要求3所述的一种高介电常数NP0型介质陶瓷，其特征在于，所述改性添加剂为五氧化二铌(Nb2O5)、二氧化锆（ZrO2）和氧化钙（CaO）中的至少一种。
5.根据权利要求1所述的一种高介电常数NP0型介质陶瓷，其特征在于，所述NP0型介质陶瓷还包括在上述混合后的粉料内加入研磨球和球磨介质。
6.根据权利要求5所述的一种高介电常数NP0型介质陶瓷，其特征在于，所述混合后的粉料、研磨球与球磨介质的质量比为1∶1∶2的比例。
7.根据权利要求6所述的一种高介电常数NP0型介质陶瓷，其特征在于，所述研磨球为氧化锆陶瓷球。
8.根据权利要求6所述的一种高介电常数NP0型介质陶瓷，其特征在于，所述球磨介质为去离子水。
9.根据权利要求6所述的一种高介电常数NP0型介质陶瓷，其特征在于，所述混合后的粉料、研磨球与去离子水在进行球磨和煅烧处理后加入质量百分比为2%的聚乙烯醇（PVA）。
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2361230A1 (de) * 1973-12-08 1975-06-19 Tdk Electronics Co Ltd Zusammensetzung eines keramischen dielektrikums
US5599757A (en) * 1995-10-26 1997-02-04 Ferro Corporation NPO dielectric ceramic compositions and capacitors made therefrom
US6528445B1 (en) * 2000-11-17 2003-03-04 Kug Sun Hong Dielectric ceramic composition and method for manufacturing the same
CN1978386A (zh) * 2005-09-20 2007-06-13 松下电器产业株式会社 烧结助剂、陶瓷组合物、陶瓷、陶瓷电子部件和陶瓷电子部件的制备方法
TW200900373A (en) * 2007-06-20 2009-01-01 Walsin Technology Corp Dielectric ceramic composition
CN103641469A (zh) * 2013-12-02 2014-03-19 电子科技大学 一种低损耗微波介质陶瓷材料及其制备方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2361230A1 (de) * 1973-12-08 1975-06-19 Tdk Electronics Co Ltd Zusammensetzung eines keramischen dielektrikums
US5599757A (en) * 1995-10-26 1997-02-04 Ferro Corporation NPO dielectric ceramic compositions and capacitors made therefrom
US6528445B1 (en) * 2000-11-17 2003-03-04 Kug Sun Hong Dielectric ceramic composition and method for manufacturing the same
CN1978386A (zh) * 2005-09-20 2007-06-13 松下电器产业株式会社 烧结助剂、陶瓷组合物、陶瓷、陶瓷电子部件和陶瓷电子部件的制备方法
TW200900373A (en) * 2007-06-20 2009-01-01 Walsin Technology Corp Dielectric ceramic composition
CN103641469A (zh) * 2013-12-02 2014-03-19 电子科技大学 一种低损耗微波介质陶瓷材料及其制备方法

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
张旭东等: "《无机非金属材料学》", 30 November 2000, 山东大学出版社 *
张茜等: ""48.3(0.61CaTiO3-xNd2/3TiO3)-51.7MgTiO3复合陶瓷的制备和性能"", 《硅酸盐学报》 *
李文旭等: "《陶瓷添加剂—配方 性能 应用（第二版）》", 30 June 2017, 化学工业出版社 *

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