CN107311644A - 一种中介电常数微波介质陶瓷及其制备方法 - Google Patents
一种中介电常数微波介质陶瓷及其制备方法 Download PDFInfo
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- 239000000919 ceramic Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical group [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 claims abstract description 26
- 239000002994 raw material Substances 0.000 claims abstract description 25
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum oxide Inorganic materials [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 claims abstract description 13
- PLDDOISOJJCEMH-UHFFFAOYSA-N neodymium oxide Inorganic materials [O-2].[O-2].[O-2].[Nd+3].[Nd+3] PLDDOISOJJCEMH-UHFFFAOYSA-N 0.000 claims abstract description 13
- KTUFCUMIWABKDW-UHFFFAOYSA-N oxo(oxolanthaniooxy)lanthanum Chemical compound O=[La]O[La]=O KTUFCUMIWABKDW-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910000018 strontium carbonate Inorganic materials 0.000 claims abstract description 13
- 238000000498 ball milling Methods 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 239000000654 additive Substances 0.000 claims description 15
- 230000000996 additive effect Effects 0.000 claims description 15
- 239000000843 powder Substances 0.000 claims description 15
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 14
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 10
- 239000002002 slurry Substances 0.000 claims description 10
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- LEDMRZGFZIAGGB-UHFFFAOYSA-L strontium carbonate Chemical compound [Sr+2].[O-]C([O-])=O LEDMRZGFZIAGGB-UHFFFAOYSA-L 0.000 claims description 8
- QZQVBEXLDFYHSR-UHFFFAOYSA-N gallium(III) oxide Inorganic materials O=[Ga]O[Ga]=O QZQVBEXLDFYHSR-UHFFFAOYSA-N 0.000 claims description 7
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 claims description 6
- -1 Pr2O3 Inorganic materials 0.000 claims description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 5
- 229910052593 corundum Inorganic materials 0.000 claims description 5
- 239000008187 granular material Substances 0.000 claims description 5
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 5
- 229910052681 coesite Inorganic materials 0.000 claims description 4
- 229910052906 cristobalite Inorganic materials 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 229910052682 stishovite Inorganic materials 0.000 claims description 4
- 229910052905 tridymite Inorganic materials 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 7
- 238000010923 batch production Methods 0.000 abstract description 2
- 238000009776 industrial production Methods 0.000 abstract description 2
- 238000004891 communication Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 238000001035 drying Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000001354 calcination Methods 0.000 description 3
- 229910010293 ceramic material Inorganic materials 0.000 description 3
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- ZNOKGRXACCSDPY-UHFFFAOYSA-N tungsten(VI) oxide Inorganic materials O=[W](=O)=O ZNOKGRXACCSDPY-UHFFFAOYSA-N 0.000 description 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc oxide Inorganic materials [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
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Abstract
本发明公开了一种中介电常数微波介质陶瓷及其制备方法，该中介电常数微波介质陶瓷的化学配比为：MxNx/2Alx/(2‑y)Gay Ti(1‑x)，其中0.10≤x≤0.50，0≤y≤0.10；M是BaCO3、SrCO3中的一种或两种，N是La2O3、Pr2O3、Nd2O3中的一种或两种。本发明的制备方法工艺简单，操作方便，原材料价廉易得；品质因数Qf＞45000GHz；频率温度系数τf＝‑1～1ppm/℃，且在此范围内可调节；适用于批量生产，有利于工业生产。
Description
技术领域
本发明属于微波介质陶瓷领域，特别是涉及一种中介电常数微波介质陶瓷及其制备方法。
背景技术
微波通信是现代化通信的重要手段之一，随着通信技术的发展对通信器件的要求越来越高，普通的金属谐振器已经无法满足一些高端性能器件的应用，微波介质陶瓷的研究日益受到重视。
微波介质陶瓷的通常要求是：高的品质因数，低的介电损耗；合适的介电常数；近零可调的谐振频率温度系数。微波介质陶瓷材料逐渐在微波器件中得到广泛的应用，作为现代通信技术中的基础材料，微波介质陶瓷材料可以制成介质谐振器、介质滤波器、双工器、微波介质天线、介质稳频振荡器、介质波导传输线等微波器件。这些器件广泛应用于移动通信、卫星电视广播通信、雷达、卫星定位导航系统等众多领域。
发明内容
为了克服现有技术的的缺点和不足，本发明的目的在于，提供一种中介电常数微波介质陶瓷及其制备方法，该微波介质陶瓷介电常数比较适中、微波性能很好的，能广泛应用于介质谐振器、介质滤波器，且工艺简单，价格低廉。
为达到上述目的，本发明是按照以下技术方案实施的：
一种中介电常数微波介质陶瓷，化学配比为：MxNx/2Alx/(2-y) Ga yTi(1-x)，其中0.10≤x≤0.50，0≤y≤0.10；M是BaCO3、SrCO3中的一种或两种，N是La2O3、Pr2O3、Nd2O3中的一种或两种。
该中介电常数微波介质陶瓷的原材料为Al2O3、Ga2O3、TiO2、BaCO3、La2O3、Pr2O3、Nd2O3、SrCO3。
该中介电常数微波介质陶瓷中还含有添加剂，所述添加剂为SiO2、ZnO、WO3、ZrO2、SnO2 、CeO2中的一种或者几种。
优选的，所述添加剂的用量是中介电常数微波介质陶瓷原材料总质量的0.05%～0.5%。
本发明还提供了一种中介电常数微波介质陶瓷的制备方法，该方法包括以下步骤：
1）将原料Al2O3、Ga2O3、TiO2、BaCO3、La2O3、Pr2O3、Nd2O3、SrCO3分别按化学配比MxNx/ 2Alx/(2-y) Ga yTi(1-x)称量；
2）根据原材料总质量的0.05%～0.5%称量添加剂SiO2、ZnO、WO3、ZrO2、SnO2 、CeO2中的一种或者几种；
3）将步称量好的原材料、添加剂放置于球磨罐中，加水，第一次球磨1～10小时；
4）将第一次球磨好的料浆在120～150℃的温度下烘干，把烘干好的粉料研细并过筛，获得混合均匀的干粉料；
5）将干粉料在900～1100℃的温度下进行煅烧；
6）将煅烧好的粉料放入球磨罐中，加水，第二次球磨1～10小时；
7）将第二次球磨好的料浆在120～150℃的温度下烘干，造粒并过筛；
8）把造好粒的粉料在2400kg/cm2的压力下压片；
9）将压片在空气气氛中，1300～1400℃温度下烧结6小时，即可得到高性能中介电常数的微波介质陶瓷。
与现有技术相比，本发明的有益效果为：
(1)工艺简单，操作方便，原材料价廉易得；
(2)本发明制备得到的微波介质陶瓷材料具有良好的微波介电性能：品质因数Qf＞45000GHz；频率温度系数τf＝-1～1ppm/℃，且在此范围内可调节；
(3) 适用于批量生产，有利于工业生产。
具体实施方式
下面以具体实施例对本发明作进一步描述，在此发明的示意性实施例以及说明用来解释本发明，但并不作为对本发明的限定。
实施例1
1）选用BaCO3、La2O3、Pr2O3、Nd2O3、SrCO3、Al2O3、Ga2O3、TiO2为原料；按目标产物的化学配比MxNx/2Alx/(2-y) Ga yTi(1-x)称取主原料，其中M是BaCO3、SrCO3的一种或两种，N是La2O3、Pr2O3、Nd2O3的一种或两种，且0.10≤x≤0.50，y=0，不选用添加剂；将原料置于球磨罐中，加水，其中原料∶球∶水的重量比为1∶2∶1，第一次球磨6小时；
2）将第一次球磨好的料浆于150℃烘干，把烘干好的粉料研细并过筛，获得混合均匀的干粉料；
3）把干粉料于1100℃煅烧；
4）把煅烧好的粉料放入球磨罐中，加水，其中原料∶球∶水的重量比为1∶2∶1，第二次球磨8小时；
5）把第二次球磨好的料浆于150℃烘干，造粒并过筛；
6）把造好粒的粉料在2400kg/cm2的压力下压片，并在空气气氛下温度为1300～1400℃的环境下，烧结6小时，即得到高性能中介电常数微波介质陶瓷。
实施例2
1）选用BaCO3、La2O3、Pr2O3、Nd2O3、SrCO3、Al2O3、Ga2O3、TiO2为原料；按目标产物的化学配比MxNx/2Alx/(2-y) Ga yTi(1-x)称取主原料，其中M是BaCO3、SrCO3的一种或两种，N是La2O3、Pr2O3、Nd2O3的一种或两种，且0.10≤x≤0.50，0＜y≤0.1，不选用添加剂；将原料置于球磨罐中，加水，其中原料∶球∶水的重量比为1∶2∶1，第一次球磨6小时；
2）将第一次球磨好的料浆于150℃烘干，把烘干好的粉料研细并过筛，获得混合均匀的干粉料；
3）把干粉料于1100℃煅烧；
4）把煅烧好的粉料放入球磨罐中，加水，其中原料∶球∶水的重量比为1∶2∶1，第二次球磨8小时；
5）把第二次球磨好的料浆于150℃烘干，造粒并过筛；
6）把造好粒的粉料在2400kg/cm2的压力下压片，并在空气气氛下温度为1300～1400℃的环境下，烧结6小时，即得到高性能中介电常数微波介质陶瓷。
实施例3
1）选用BaCO3、La2O3、Pr2O3、Nd2O3、SrCO3、Al2O3、Ga2O3、TiO2为原料；按目标产物的化学配比MxNx/2Alx/(2-y) Ga yTi(1-x)称取主原料，其中M是BaCO3、SrCO3的一种或两种，N是La2O3、Pr2O3、Nd2O3的一种或两种，且0.10≤x≤0.50，0＜y≤0.1；按原料总重量的0.05%～0.5%，添加SiO2、ZnO、WO3、ZrO2、SnO2 、CeO2中的一种或者几种；将原料与添加剂置于球磨罐中，加水，其中原料∶球∶水的重量比为1∶2∶1，第一次球磨6小时；
2）将第一次球磨好的料浆于150℃烘干，把烘干好的粉料研细并过筛，获得混合均匀的干粉料；
3）把干粉料于1100℃煅烧；
4）把煅烧好的粉料放入球磨罐中，加水，其中原料∶球∶水的重量比为1∶2∶1，第二次球磨8小时；
5）把第二次球磨好的料浆于150℃烘干，造粒并过筛；
6）把造好粒的粉料在2400kg/cm2的压力下压片，并在空气气氛下温度为1300～1400℃的环境下，烧结6小时，即得到高性能中介电常数微波介质陶瓷。
对按照实施例制备获得的微波中介电常数的微波介质陶瓷的结构与性能进行测试与分析，利用网络分析仪采用闭腔法、开腔法进行微波介电性能测试，并在高低温试验箱中测定25～85℃下的谐振频率根据公式τf =（f85-f25）/f25/(85-25)计算材料的温度系数，其中f85表示85℃下该材料的谐振频率，f25表示25℃下该材料的谐振频率。测试结果见表1。
表1 中介电常数微波介质陶瓷微波性能测试结果
经过实验研究发现，对MxNx/2Alx/2-y Ga yTi(1-x)中x较优的取值范围为0.2≤x≤0.35，y的较优取值范围为0.05≤y≤0.07；优选的添加剂为SiO2、CeO2，添加剂的较优添加量为总重量的0.15～0.25%。
本发明的技术方案不限于上述具体实施例的限制，凡是根据本发明的技术方案做出的技术变形，均落入本发明的保护范围之内。
Claims (5)
1.一种中介电常数微波介质陶瓷，其特征在于，该中介电常数微波介质陶瓷的化学配比为：MxNx/2 Alx/(2-y) Gay Ti(1-x)，其中0.10≤x≤0.50，0≤y≤0.10；M是BaCO3、SrCO3中的一种或两种，N是La2O3、Pr2O3、Nd2O3中的一种或两种。
2.根据权利要求1所述的一种中介电常数微波介质陶瓷，其特征在于：所述中介电常数微波介质陶瓷的原材料为Al2O3、Ga2O3、TiO2、BaCO3、La2O3、Pr2O3、Nd2O3、SrCO3。
3.根据权利要求2所述的一种中介电常数微波介质陶瓷，其特征在于：所述中介电常数微波介质陶瓷中还含有添加剂，所述添加剂为SiO2、ZnO、WO3、ZrO2、SnO2 、CeO2中的一种或者几种。
4.根据权利要求2所述的一种中介电常数微波介质陶瓷，其特征在于：所述添加剂的用量是中介电常数微波介质陶瓷原材料总质量的0.05%～0.5%。
5.如权利要求1-4任一项所述的一种中介电常数微波介质陶瓷的制备方法，其特征在于，包括以下步骤：
1）将原料Al2O3、Ga2O3、TiO2、BaCO3、La2O3、Pr2O3、Nd2O3、SrCO3分别按化学配比MxNx/ 2Alx/(2-y) Ga yTi(1-x)称量；
2）根据原材料总质量的0.05%～0.5%称量添加剂SiO2、ZnO、WO3、ZrO2、SnO2 、CeO2中的一种或者几种；
3）将步称量好的原材料、添加剂放置于球磨罐中，加水，第一次球磨1～10小时；
4）将第一次球磨好的料浆在120～150℃的温度下烘干，把烘干好的粉料研细并过筛，获得混合均匀的干粉料；
5）将干粉料在900～1100℃的温度下进行煅烧；
6）将煅烧好的粉料放入球磨罐中，加水，第二次球磨1～10小时；
7）将第二次球磨好的料浆在120～150℃的温度下烘干，造粒并过筛；
8）把造好粒的粉料在2400kg/cm2的压力下压片；
9）将压片在空气气氛中，1300～1400℃温度下烧结6小时，即可得到高性能中介电常数的微波介质陶瓷。
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108484160A (zh) * | 2018-06-25 | 2018-09-04 | 苏州博恩希普新材料科技有限公司 | 一种九钛酸钡基微波介质陶瓷材料及制备方法 |
| CN110963796A (zh) * | 2019-12-25 | 2020-04-07 | 安徽大学 | 一种巨介电常数低损耗x8r型陶瓷电容器材料及其制备方法 |
| CN112250441A (zh) * | 2020-10-28 | 2021-01-22 | 烟台大学 | 一种低烧结温度介电性能可调的微波介质陶瓷 |
| CN114758890A (zh) * | 2022-05-31 | 2022-07-15 | 汕头市瑞升电子有限公司 | 一种超高压陶瓷电容器介质及其制备方法 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102093052A (zh) * | 2010-12-16 | 2011-06-15 | 厦门松元电子有限公司 | 一种钛酸钡基表面氧化层型陶瓷电容器介质材料及其制备方法 |
| CN102992762A (zh) * | 2012-11-16 | 2013-03-27 | 武汉凡谷电子技术股份有限公司 | 钡钴锌铌基微波介质陶瓷及其制备方法 |
| CN103214244A (zh) * | 2013-04-27 | 2013-07-24 | 武汉虹信通信技术有限责任公司 | 一种微波介质陶瓷及其制备方法 |
| CN103360050A (zh) * | 2013-07-11 | 2013-10-23 | 华中科技大学 | 一种中介电常数的微波介质陶瓷及其制备方法 |
| US20150336219A1 (en) * | 2011-01-13 | 2015-11-26 | Siemens Energy, Inc. | Composite materials and methods for laser manufacturing and repair of metals |
-
2017
- 2017-07-31 CN CN201710640709.1A patent/CN107311644A/zh active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102093052A (zh) * | 2010-12-16 | 2011-06-15 | 厦门松元电子有限公司 | 一种钛酸钡基表面氧化层型陶瓷电容器介质材料及其制备方法 |
| US20150336219A1 (en) * | 2011-01-13 | 2015-11-26 | Siemens Energy, Inc. | Composite materials and methods for laser manufacturing and repair of metals |
| CN102992762A (zh) * | 2012-11-16 | 2013-03-27 | 武汉凡谷电子技术股份有限公司 | 钡钴锌铌基微波介质陶瓷及其制备方法 |
| CN103214244A (zh) * | 2013-04-27 | 2013-07-24 | 武汉虹信通信技术有限责任公司 | 一种微波介质陶瓷及其制备方法 |
| CN103360050A (zh) * | 2013-07-11 | 2013-10-23 | 华中科技大学 | 一种中介电常数的微波介质陶瓷及其制备方法 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108484160A (zh) * | 2018-06-25 | 2018-09-04 | 苏州博恩希普新材料科技有限公司 | 一种九钛酸钡基微波介质陶瓷材料及制备方法 |
| CN110963796A (zh) * | 2019-12-25 | 2020-04-07 | 安徽大学 | 一种巨介电常数低损耗x8r型陶瓷电容器材料及其制备方法 |
| CN112250441A (zh) * | 2020-10-28 | 2021-01-22 | 烟台大学 | 一种低烧结温度介电性能可调的微波介质陶瓷 |
| CN114758890A (zh) * | 2022-05-31 | 2022-07-15 | 汕头市瑞升电子有限公司 | 一种超高压陶瓷电容器介质及其制备方法 |
| CN114758890B (zh) * | 2022-05-31 | 2024-03-22 | 汕头市瑞升电子有限公司 | 一种超高压陶瓷电容器介质及其制备方法 |
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